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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

2017 Semi-Annual and June U.S. Airline Traffic Data

Friday, September 15, 2017

Download Excel Tables 

The U.S. Department of Transportation’s Bureau of Transportation Statistics (BTS) reported today that U.S. airlines carried an all-time high number of passengers during the first six months of 2017 – 414.4 million systemwide, 360.9 million domestic and 53.5 million international – surpassing the previous highs reached in 2016 (Tables A, B, C).

The airlines also set all-time semi-annual highs for systemwide, domestic and international revenue passenger miles (RPMs) and available seat-miles (ASMs).

The record number of airline passengers in the first six months of 2017 resulted in fewer systemwide empty seats because growth in international passenger travel outpaced growth in international capacity, offsetting a domestic capacity growth rate that slightly exceeded passenger travel growth. Load factor – the measure of the use of airline capacity – rose from 2016 but remained below peak levels of previous years (Tables A, B, C).

The six-month load factor rose from 2016 (82.7) to 2017 (82.9) because passenger travel (3.1 percent increase in RPMs) grew faster than system capacity (2.8 percent increase in ASMs) (Table A).

Semi-Annual Trends:

Systemwide passenger enplanements (414.4 million) reached an all-time January through June high, up 2.8 percent from the previous high (403.1 million) reached in 2016 (Table A, Figure 1). Domestic passenger enplanements (360.9 million) reached an all-time semi-annual high, up 2.7 percent from the previous high (351.6 million) reached in 2016 (Table B). International passenger enplanements (53.5 million) reached an all-time semi-annual high, up 3.8 percent from the previous high (51.5 million) reached in 2016 (Table C).

Systemwide RPMs (468.9 billion) reached an all-time January through June high, up 3.1 percent from the previous high (454.9 billion) reached in 2016 (Table A). Domestic RPMs (332.8 billion) reached an all-time semi-annual high, up 3.3 percent from the previous high (322.3 billion) reached in 2016 (Table B). International RPMs (136.0 billion) reached an all-time semi-annual high, up 2.5 percent from the previous high (132.7 billion) reached in 2016 (Table C).

Systemwide ASMs (565.8 billion) reached an all-time January through June high, up 2.8 percent from the previous high (550.2 billion) reached in 2016 (Table A). Domestic ASMs (395.6 billion) reached an all-time semi-annual high, up 3.4 percent from the previous high (382.7 billion) reached in 2016 (Table B). International ASMs (170.2 billion) reached an all-time semi-annual high, up 1.6 percent from the previous high (167.5 billion) reached in 2016 (Table C).

Systemwide load factor (82.9) was down 0.3 points from the all-time January through June high (83.2) reached in 2014 (Table A). Domestic load factor (84.1) was down 0.5 points from the all-time semi-annual high (84.6) reached in 2014 (Table B). International load factor (79.9) was down 1.2 points from the all-time semi-annual high (81.2) reached in 2013 (Table C). Load factor is a measure of the use of aircraft capacity that compares the system use, measured in RPMs, as a proportion of system capacity, measured in ASMs.

June 2017 U.S. Airline Scheduled Service Numbers

Trends (Percent changes based on unrounded numbers)

Seasonally-adjusted

Figure 2. Seasonally-Adjusted Systemwide Passenger Enplanements on All U.S. Scheduled Airlines (Domestic & International), January 2014 - June 2017

"Figure 2. Seasonally-Adjusted Systemwide Passenger Enplanements on All U.S. Scheduled Airlines (Domestic & International),
January 2014 - June 2017"
Enplanements in millions (Seasonally Adjusted)
Jan-14 62.8
Feb-14 63.1
Mar-14 64.0
Apr-14 63.5
May-14 63.5
Jun-14 63.4
Jul-14 63.7
Aug-14 63.5
Sep-14 63.7
Oct-14 63.6
Nov-14 64.1
Dec-14 64.2
Jan-15 64.8
Feb-15 65.0
Mar-15 65.7
Apr-15 65.7
May-15 65.9
Jun-15 66.1
Jul-15 66.9
Aug-15 67.4
Sep-15 67.3
Oct-15 67.9
Nov-15 67.5
Dec-15 68.1
Jan-16 67.6
Feb-16 67.7
Mar-16 67.1
Apr-16 67.9
May-16 68.7
Jun-16 68.9
Jul-16 68.4
Aug-16 68.0
Sep-16 69.3
Oct-16 69.3
Nov-16 69.5
Dec-16 68.8
Jan-17 69.5
Feb-17 69.5
Mar-17 69.7
Apr-17 70.3
May-17 70.8
Jun-17 70.9

Systemwide passenger enplanements (70.9 million) reached a new seasonally-adjusted all-time high, up less than one-tenth of 1 percent from the previous high in May 2017 (70.8 million) (Table 1, Figure 2). Domestic passenger enplanements (61.7 million) were down 0.04 percent from the all-time seasonally-adjusted high (61.74 million) reached in May 2017 (Table 2). International passenger enplanements (9.14 million) reached a new seasonally-adjusted all-time high, up 0.2 percent from the previous high in April 2017 (9.11 million) (Table 3).           

Systemwide revenue passenger miles (RPMs) (80.9 billion) reached a new seasonally-adjusted all-time high, up 0.5 percent from the previous high in May 2017 (80.5 billion) (Table 4). Domestic RPMs (57.1 billion) reached a new seasonally-adjusted all-time high, up 0.3 percent from the previous high in May 2017 (56.9 billion) (Table 5). International RPMs (23.8 billion) were down less than one-tenth of 1.0 percent from the all-time seasonally-adjusted high (23.78 billion) reached in April 2017 (Table 6).

Systemwide available seat-miles (ASMs) (96.9 billion) reached a new seasonally-adjusted all-time high, up 0.9 percent from the previous high in May 2017 (96.1 billion) (Table 7). Domestic ASMs (67.8 billion) reached a new seasonally-adjusted all-time high, up 1.1 percent from the previous high in May 2017 (67.1 billion) (Table 8). International ASMs (29.2 billion) reached a new seasonally-adjusted all-time high, up 0.4 percent from the previous high in May 2017 (29.1 billion) (Table 9).

Systemwide load factor (83.5) was down 1.2 points from the all-time seasonally-adjusted high (84.7) reached in October 2015 (Table 10). Domestic load factor (84.3) was down 1.6 points from the all-time seasonally-adjusted high (85.9) reached in October 2015 (Table 11). International load factor (81.6) was down 1.4 points from the all-time seasonally-adjusted high (83.0) reached in March 2013 (Table 12).

The seasonally-adjusted load factor declined from May (83.8) to June (83.5) despite growth in passenger travel (0.5 percent increase in RPMs) because system capacity grew more (0.9 percent increase in ASMs) (Tables 4, 7).

Seasonally adjusted trends are for the time period January 2000 to present. Additional data, including domestic and international numbers, can be found on the seasonally-adjusted data  page.

Unadjusted

Figure 3. Unadjusted Systemwide Passenger Enplanements on All U.S. Scheduled Airlines (Domestic & International), January 2014 - June 2017

"Figure 3. Unadjusted Systemwide Passenger Enplanements on All U.S. Scheduled Airlines (Domestic & International),
January 2014 - June 2017"
Enplanements in millions (Unadjusted)
Jan-14 55.8
Feb-14 52.4
Mar-14 66.4
Apr-14 63.5
May-14 66.5
Jun-14 68.6
Jul-14 71.9
Aug-14 69.5
Sep-14 60.0
Oct-14 64.5
Nov-14 59.7
Dec-14 63.8
Jan-15 57.8
Feb-15 54.2
Mar-15 68.2
Apr-15 65.9
May-15 68.9
Jun-15 71.3
Jul-15 75.6
Aug-15 72.9
Sep-15 63.7
Oct-15 68.7
Nov-15 64.6
Dec-15 66.4
Jan-16 60.8
Feb-16 58.5
Mar-16 70.6
Apr-16 67.2
May-16 71.5
Jun-16 74.5
Jul-16 76.9
Aug-16 73.4
Sep-16 66.5
Oct-16 69.5
Nov-16 66.6
Dec-16 66.9
Jan-17 62.6
Feb-17 58.3
Mar-17 72.7
Apr-17 70.2
May-17 73.6
Jun-17 76.9

Systemwide passenger enplanements (76.94 million) reached an all-time high for any month, up less than one-tenth of 1.0 percent (0.08 percent) from the previous high (76.88 million) reached in July 2016 and up 3.3 percent from the previous June high (74.5 million) reached in 2016 (Table 13, Figure 3). Domestic passenger enplanements (66.7 million) reached an all-time high for any month, up 0.8 percent from the previous high (66.1 million) reached in July 2016 and up 3.0 percent from the previous June high (64.8 million) reached in 2016 (Table 14). International passenger enplanements (10.3 million) reached an all-time June high, up 5.3 percent from the previous high (9.7 million) reached in 2016 (Table 15).

Systemwide RPMs (89.7 billion) reached an all-time June high, up 3.6 percent from the previous high (86.5 billion) reached in 2016 (Table 16). Domestic RPMs (62.5 billion) reached an all-time high for any month, up 0.2 percent from the previous high (62.3 billion) reached in July 2016 and up 3.6 percent from the previous June high (60.3 billion) reached in 2016 (Table 17). International RPMs (27.2 billion) reached an all-time June high, up 3.7 percent from the previous high (26.2 billion) reached in 2016 (Table 18).

Systemwide ASMs (103.7 billion) reached an all-time June high, up 3.9 percent from the previous high (99.9 billion) reached in 2016 (Table 19). Domestic ASMs (71.7 billion) reached an all-time high for any month, up 0.2 percent from the previous high (71.5 billion) reached in July 2016 and up 4.2 percent from the previous high (68.8 billion) reached in 2016 (Table 20). International ASMs (32.0 billion) reached an all-time June high, up 3.2 percent from the previous high (31.1 billion) reached in 2016 (Table 21).

Systemwide load factor (86.4) was down 0.5 points from the all-time June high (87.0) reached in 2013 (Table 22). Domestic load factor (87.1) was down 0.5 points from the all-time June high (87.6) reached in 2016 (Table 23). International load factor (84.9) was down 2.0 points from the all-time June high (86.9) reached in 2013 (Table 24).

Unadjusted trends are for the time period January 1996 to present. Data are available at Customize Table and can be downloaded from the seasonally-adjusted data  page.

Explanation of seasonal adjustment

When the primary purpose is to examine monthly shifts in transportation services output and analyze short-term trends, the variation introduced by normal seasonal changes must be removed from the data. Transportation is highly seasonal, and without adjustment, the data do not give an accurate picture of underlying changes in aviation, passenger travel.

Seasonal adjustment of the data removes the seasonal events that follow a regular seasonal pattern. Changes that are not due to seasonality, such as a change in air travel resulting from economic conditions become more readily apparent.

The aviation data are seasonally adjusted for the effects of trading day, moving holidays, and data outliers.

See Seasonal Adjustment for methodology and additional explanation.

Reporting Notes

Data are compiled from monthly reports filed with BTS by commercial U.S. air carriers detailing operations, passenger traffic and freight traffic. This release includes data received by BTS from 83 carriers as of Sept. 6 for U.S. carrier scheduled civilian operations.

Go to http://www.transtats.bts.gov/releaseinfo.asp for the complete list of reporting and non-reporting carriers. U.S. carriers’ foreign point-to-point flights are included in system and international totals. To create a customized table for passengers, flights, RPMs, ASMs and other data, including non-scheduled service, go to http://apps.bts.gov/xml/air_traffic/src/index.xml#CustomizeTable

For additional scheduled service numbers for U.S. and foreign airlines, by airline and by airport, see Passengers, Flights, Revenue Passenger-Miles, Available Seat-Miles and Load Factor.

Traffic numbers are available on the BTS website at TranStats, the Intermodal Transportation Database, at http://transtats.bts.gov.  Click on “Aviation.”  For systemwide passengers, RPMs and ASMs by carrier through June, click on “Air Carrier Summary Data (Form 41 and 298C Summary Data),” and then click on “Schedule T-1.” Use crosstabs to find scheduled service.

For domestic numbers through June and international numbers through March by origin as well as by carrier, click on “Aviation,” then click on “Air Carrier Statistics (Form 41 Traffic).”  Click on “T-100 Market” for system passenger numbers, “T-100 Domestic Market” for domestic or “T-100 International Market” for international.  For flights, stage length and trip length, use the appropriate T-100 Segment database. Use crosstabs to find scheduled service.

International totals in this press release consist of all U.S. carrier operations to and from the U.S. and from one foreign point to another foreign point. TranStats T-100 systemwide and international totals do not include U.S. carriers’ foreign point-to-point flights. For June, U.S. carriers reported 50,970 foreign point-to-point passengers. For January through June, U.S. carriers reported 353,924 foreign point-to-point passengers.

Data are subject to revision. BTS has scheduled Oct. 13 for the release of July traffic data. None of the data are from samples so measures of statistical significance do not apply.

Semi-Annual Tables

Table A. Systemwide U.S. Airlines Semi-Annual Air Traffic, Jan-June 2003-2017

Passengers (in millions) Revenue Passenger-Miles (in billions) Available Seat-Miles (in billions Load Factor
2003 312.6 312.7 435.0 71.9
2004 342.1 355.2 475.7 74.7
2005 366.3 383.4 497.9 77.0
2006 369.6 393.5 495.1 79.5
2007 379.7 406.0 509.4 79.7
2008 379.7 412.6 519.9 79.3
2009 345.5 375.2 477.9 78.5
2010 349.6 384.0 473.9 81.0
2011 358.0 397.0 492.1 80.7
2012 363.8 404.3 494.1 81.8
2013 365.8 410.8 496.8 82.7
2014 373.3 421.0 505.7 83.2
2015 386.3 435.3 525.4 82.9
2016 403.1 454.9 550.2 82.7
2017 414.4 468.9 565.8 82.9
Source:

Bureau of Transportation Statistics, T-100 Market and T-100 Segment

Table B. Domestic U.S. Scheduled Airlines Semi-Annual Air Traffic, Jan-June 2003-2017

Passengers (in millions) Revenue Passenger-Miles (in billions) Available Seat-Miles (in billions Load Factor
2003 282.6 237.1 330.4 71.8
2004 306.5 264.1 358.9 73.6
2005 325.8 280.7 367.1 76.5
2006 326.8 284.9 358.0 79.6
2007 335.2 291.4 364.8 79.9
2008 332.8 290.7 365.3 79.6
2009 303.1 264.1 330.8 79.9
2010 305.4 267.9 329.2 81.4
2011 312.2 275.6 336.7 81.8
2012 317.0 280.1 338.1 82.8
2013 317.9 283.9 340.5 83.4
2014 323.6 290.7 343.5 84.6
2015 336.2 304.4 360.8 84.4
2016 351.6 322.3 382.7 84.2
2017 360.9 332.8 395.6 84.1
Source:

Bureau of Transportation Statistics, T-100 Domestic Market and T-100 Domestic Segment

Table C. International U.S. Scheduled Airlines Semi-Annual Air Traffic, Jan-June 2003-2017

Passengers (in millions) Revenue Passenger-Miles (in billions) Available Seat-Miles (in billions Load Factor
2003 30.1 75.6 104.6 72.2
2004 35.6 91.0 116.8 78.0
2005 40.4 102.7 130.8 78.5
2006 42.8 108.6 137.2 79.2
2007 44.5 114.5 144.6 79.2
2008 46.9 121.9 154.7 78.8
2009 42.4 111.1 147.1 75.5
2010 44.2 116.1 144.7 80.2
2011 45.7 121.4 155.3 78.1
2012 46.8 124.2 156.0 79.6
2013 47.9 126.9 156.3 81.2
2014 49.7 130.3 162.2 80.3
2015 50.0 130.9 164.6 79.5
2016 51.5 132.7 167.5 79.2
2017 53.5 136.0 170.2 79.9
Source:

Bureau of Transportation Statistics, T-100 International Market and T-100 International Segment

Seasonally-Adjusted Tables

Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted (Tables 1-3)

 

Table 1. Systemwide Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 62.84 64.82 67.62 69.53
February 63.13 65.03 67.67 69.52
March 63.98 65.67 67.11 69.74
April 63.48 65.69 67.86 70.33
May 63.49 65.92 68.74 70.84
June 63.36 66.12 68.92 70.85
July 63.67 66.94 68.44
August 63.53 67.41 67.96
September 63.74 67.27 69.28
October 63.60 67.94 69.25
November 64.10 67.53 69.53
December 64.20 68.09 68.82
Source:

Bureau of Transportation Statistics, T-100 Market

Table 2. Domestic Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 54.50 56.40 59.00 60.69
February 54.81 56.60 59.03 60.72
March 55.61 57.25 58.49 60.90
April 55.10 57.37 59.33 61.21
May 55.10 57.49 60.16 61.74
June 55.00 57.64 60.19 61.72
July 55.35 58.36 59.75
August 55.22 58.76 59.34
September 55.45 58.65 60.64
October 55.40 59.32 60.60
November 55.76 58.88 60.87
December 55.83 59.43 60.05
Source:

Bureau of Transportation Statistics, T-100 Domestic Market

Table 3. International Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 8.33 8.42 8.63 8.84
February 8.32 8.43 8.64 8.80
March 8.37 8.42 8.63 8.84
April 8.38 8.32 8.53 9.11
May 8.39 8.43 8.58 9.10
June 8.37 8.48 8.72 9.14
July 8.32 8.58 8.69
August 8.31 8.64 8.62
September 8.28 8.62 8.64
October 8.21 8.61 8.65
November 8.33 8.65 8.66
December 8.37 8.66 8.77
Source:

Bureau of Transportation Statistics, T-100 International Market

Revenue Passenger-Miles on U.S. Airlines, Seasonally-Adjusted (Tables 4-6)

Table 4. Systemwide Revenue Passenger-Miles (RPMs) on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 71.0 73.1 76.5 79.1
February 71.4 73.5 76.8 78.5
March 72.3 74.5 76.5 79.3
April 71.7 74.0 77.0 80.3
May 71.9 74.6 77.7 80.5
June 71.6 74.9 78.2 80.9
July 71.7 75.7 77.9
August 71.8 76.2 77.2
September 72.0 75.9 78.3
October 72.0 76.8 78.3
November 72.4 76.3 78.6
December 73.1 76.9 78.8
Notes:

Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 5. Domestic Revenue Passenger-Miles (RPMs) on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 48.8 50.7 53.7 56.1
February 49.2 51.0 54.0 55.5
March 50.0 52.0 53.8 56.2
April 49.3 51.8 54.4 56.5
May 49.3 52.0 55.1 56.9
June 49.3 52.3 55.3 57.1
July 49.6 52.9 55.0
August 49.5 53.2 54.6
September 49.8 53.1 55.5
October 49.9 54.0 55.6
November 50.1 53.6 55.8
December 50.7 54.2 55.8
Notes:

Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 6. International Revenue Passenger-Miles (RPMs) on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 22.3 22.5 22.7 23.0
February 22.2 22.5 22.7 23.0
March 22.3 22.6 22.7 23.1
April 22.4 22.2 22.6 23.8
May 22.5 22.5 22.6 23.6
June 22.4 22.6 22.9 23.8
July 22.0 22.9 22.9
August 22.2 23.0 22.6
September 22.2 22.8 22.8
October 22.1 22.9 22.7
November 22.3 22.7 22.8
December 22.4 22.7 23.0
Notes:

Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Available Seat-Miles on U.S. Airlines, Seasonally-Adjusted (Tables 7-9)

Table 7. Systemwide Available Seat-Miles (ASMs) on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 84.2 88.1 91.2 94.8
February 85.1 87.6 92.1 94.9
March 86.4 88.8 92.7 95.2
April 85.6 89.4 92.5 95.8
May 85.6 89.7 93.1 96.1
June 86.2 89.5 93.3 96.9
July 86.3 90.3 93.4
August 86.2 90.5 93.5
September 86.6 90.5 93.6
October 87.1 90.7 93.6
November 87.5 91.1 93.3
December 88.1 91.5 94.3
Notes:

 Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 8. Domestic Available Seat-Miles (ASMs) on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 57.2 60.3 63.1 66.4
February 57.9 59.9 64.0 66.3
March 58.8 60.9 64.4 66.5
April 58.3 61.5 64.4 66.8
May 58.2 61.8 64.9 67.1
June 58.4 61.7 65.0 67.8
July 58.7 62.2 65.2
August 58.7 62.4 65.3
September 59.1 62.3 65.4
October 59.6 62.8 65.3
November 59.7 63.2 65.6
December 60.3 63.3 65.9
Notes:

Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 9. International Available Seat-Miles (ASMs) on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 27.0 27.8 28.1 28.4
February 27.2 27.6 28.1 28.5
March 27.7 27.8 28.2 28.6
April 27.3 28.0 28.2 28.9
May 27.4 27.9 28.3 29.0
June 27.7 27.9 28.3 29.2
July 27.6 28.1 28.2
August 27.5 28.1 28.2
September 27.4 28.1 28.2
October 27.5 27.9 28.3
November 27.8 27.9 27.7
December 27.8 28.2 28.4
Notes:

Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Load Factor on U.S. Airlines, Seasonally-Adjusted (Tables 10-12)

 

Table 10. Systemwide Load Factor on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 84.3 83.0 83.9 83.4
February 83.8 83.9 83.4 82.7
March 83.6 84.0 82.5 83.3
April 83.8 82.7 83.2 83.9
May 84.0 83.1 83.4 83.8
June 83.1 83.6 83.8 83.5
July 83.1 83.9 83.4
August 83.3 84.1 82.6
September 83.2 83.9 83.6
October 82.7 84.7 83.7
November 82.8 83.8 84.2
December 82.9 84.1 83.6
Notes:

Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 11. Domestic Load Factor on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 85.3 84.0 85.1 84.5
February 85.0 85.1 84.5 83.7
March 85.2 85.3 83.5 84.5
April 84.6 84.3 84.6 84.6
May 84.8 84.1 84.9 84.9
June 84.3 84.8 85.0 84.3
July 84.6 85.0 84.4
August 84.4 85.3 83.6
September 84.2 85.2 84.9
October 83.6 85.9 85.1
November 84.0 84.8 85.2
December 84.0 85.7 84.6
Notes:

Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 12. International Load Factor on U.S. Airlines, Seasonally-Adjusted, June 2017

2014 2015 2016 2017
January 82.3 80.8 81.0 80.9
February 81.5 81.5 80.8 80.5
March 80.4 81.0 80.2 80.7
April 82.1 79.3 80.1 82.3
May 82.2 80.8 79.9 81.2
June 80.6 80.9 81.1 81.6
July 79.8 81.4 81.2
August 80.9 81.6 80.2
September 81.0 80.9 80.7
October 80.6 82.0 80.3
November 80.1 81.4 82.1
December 80.7 80.6 81.1
Notes:

Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

Source:

Bureau of Transportation Statistics, T-100 Segment

Unadjusted Tables

Passenger Enplanements on U.S. Airlines, Unadjusted (Tables 13-15)

Table 13. Systemwide Passenger Enplanements on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 55.81 57.78 60.81 62.60
February 52.44 54.16 58.49 58.35
March 66.44 68.20 70.56 72.69
April 63.49 65.92 67.24 70.20
May 66.51 68.93 71.51 73.61
June 68.60 71.27 74.50 76.94
July 71.89 75.63 76.88
August 69.53 72.87 73.45
September 59.99 63.74 66.47
October 64.49 68.73 69.54
November 59.74 64.59 66.59
December 63.78 66.40 66.93
6 Mo. Total 373.29 386.26 403.11 414.39
Yr. Total 762.71 798.22 822.97
Source:

Bureau of Transportation Statistics, T-100 Market

Table 14. Domestic Passenger Enplanements on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 47.96 49.73 52.47 54.09
February 45.51 47.17 51.11 51.05
March 57.76 59.56 61.59 63.69
April 55.25 57.70 58.89 61.04
May 57.89 60.25 62.75 64.38
June 59.26 61.81 64.75 66.68
July 61.76 65.13 66.13
August 59.76 62.77 63.50
September 52.53 55.99 58.62
October 57.08 60.89 61.71
November 52.58 57.15 59.27
December 55.49 57.87 58.22
6 Mo. Total 323.63 336.22 351.56 360.93
Yr. Total 662.83 696.02 719.01
Source:

Bureau of Transportation Statistics, T-100 Domestic Market

Table 15. International Passenger Enplanements on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 7.85 8.06 8.33 8.51
February 6.93 7.00 7.38 7.30
March 8.68 8.64 8.96 9.00
April 8.24 8.22 8.34 9.16
May 8.62 8.67 8.76 9.24
June 9.34 9.46 9.74 10.26
July 10.13 10.50 10.75
August 9.77 10.09 9.95
September 7.46 7.75 7.86
October 7.41 7.84 7.83
November 7.16 7.44 7.32
December 8.29 8.53 8.71
6 Mo. Total 49.66 50.05 51.51 53.47
Yr. Total 99.88 102.20 103.93
Source:

Bureau of Transportation Statistics, T-100 International Market

Revenue Passenger-Miles on U.S. Airlines, Unadjusted (Tables 16-18)

Table 16. Systemwide Revenue Passenger-Miles (RPMs) on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 64.1 66.0 69.3 71.4
February 57.9 59.8 64.6 64.2
March 73.6 75.8 78.7 80.6
April 70.7 73.1 75.1 79.5
May 75.2 78.0 80.8 83.5
June 79.5 82.7 86.5 89.7
July 83.7 88.3 90.6
August 81.2 85.2 86.1
September 68.4 72.5 75.3
October 71.3 76.1 77.3
November 65.2 70.0 72.2
December 71.8 74.8 77.0
6 Mo. Total 421.0 435.3 454.9 468.9
Yr. Total 862.5 902.2 933.5
Notes:

Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 17. Domestic Revenue Passenger-Miles (RPMs) on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 43.6 45.1 48.1 50.1
February 40.5 42.3 46.5 46.5
March 51.9 53.9 56.7 58.5
April 49.3 51.9 53.6 56.3
May 51.5 54.3 57.1 59.0
June 54.0 57.0 60.3 62.5
July 56.9 60.4 62.3
August 54.6 57.8 59.3
September 46.3 49.9 52.7
October 50.1 54.1 55.3
November 46.4 50.9 53.3
December 50.3 53.1 54.8
6 Mo. Total 290.7 304.4 322.3 332.8
Yr. Total 595.3 630.7 660.0
Notes:

Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 18. International Revenue Passenger-Miles (RPMs) on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 20.5 20.8 21.2 21.3
February 17.3 17.5 18.1 17.8
March 21.8 21.8 22.0 22.0
April 21.5 21.2 21.5 23.2
May 23.7 23.8 23.7 24.5
June 25.5 25.7 26.2 27.2
July 26.8 27.8 28.3
August 26.6 27.4 26.9
September 22.1 22.6 22.7
October 21.2 22.0 22.0
November 18.8 19.1 18.9
December 21.5 21.7 22.2
6 Mo. Total 130.3 130.9 132.7 136.0
Yr. Total 267.2 271.6 273.5
Notes:

Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Available Seat-Miles on U.S. Airlines, Unadjusted (Tables 19-21)

Table 19. Systemwide Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 79.8 83.4 86.3 90.0
February 72.5 74.5 81.9 81.4
March 88.2 90.3 94.2 96.5
April 84.8 88.6 91.6 94.8
May 88.5 92.8 96.4 99.4
June 92.0 95.7 99.9 103.7
July 96.5 101.0 104.4
August 94.0 98.6 101.8
September 83.5 87.3 90.4
October 86.1 89.5 92.2
November 81.7 84.9 86.9
December 86.8 90.3 93.0
6 Mo. Total 505.8 525.3 550.3 565.8
Yr. Total 1,034.4 1,076.9 1,119.0
Notes:

Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 20. Domestic Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 54.0 57.0 59.7 63.1
February 49.4 51.3 57.5 57.4
March 60.7 62.9 66.5 68.5
April 58.0 61.1 63.8 66.1
May 59.7 63.4 66.5 68.8
June 61.8 65.2 68.8 71.7
July 64.8 68.6 71.5
August 62.9 66.7 70.0
September 56.5 59.5 62.5
October 59.6 62.6 64.8
November 56.9 60.5 62.9
December 60.3 63.2 65.7
6 Mo. Total 343.6 360.9 382.8 395.6
Yr. Total 704.6 742.0 780.2
Notes:

Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 21. International Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 25.8 26.4 26.7 26.9
February 23.1 23.3 24.5 23.9
March 27.5 27.5 27.7 28.0
April 26.8 27.5 27.8 28.7
May 28.8 29.4 29.8 30.6
June 30.2 30.5 31.1 32.0
July 31.7 32.4 32.9
August 31.1 31.9 31.9
September 27.0 27.8 27.9
October 26.5 27.0 27.4
November 24.7 24.5 24.0
December 26.6 27.0 27.3
6 Mo. Total 162.2 164.6 167.6 170.1
Yr. Total 329.8 335.2 339.0
Notes:

Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment

Load Factor on U.S. Airlines, Unadjusted (Tables 22-24)

Table 22. Systemwide Load Factor on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 80.3 79.1 80.2 79.4
February 79.8 80.2 78.8 79.0
March 83.5 83.9 83.6 83.5
April 83.4 82.5 82.0 83.9
May 85.0 84.1 83.8 84.0
June 86.4 86.4 86.6 86.4
July 86.7 87.4 86.8
August 86.5 86.4 84.6
September 81.9 83.0 83.3
October 82.8 85.0 83.8
November 79.8 82.4 83.1
December 82.6 82.9 82.8
6 Mo. Value 83.2 82.9 82.7 82.9
Yr. Value 83.4 83.8 83.4
Notes:

Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 23. Domestic Load Factor on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 80.7 79.2 80.6 79.5
February 82.1 82.4 80.8 80.9
March 85.5 85.8 85.3 85.4
April 84.9 84.9 84.1 85.2
May 86.3 85.6 85.9 85.7
June 87.4 87.4 87.6 87.1
July 87.8 88.1 87.2
August 86.9 86.6 84.7
September 82.1 83.8 84.2
October 84.1 86.4 85.4
November 81.4 84.2 84.7
December 83.5 84.0 83.4
6 Mo. Value 84.6 84.4 84.2 84.1
Yr. Value 84.5 85.0 84.6
Notes:

Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

Source:

Bureau of Transportation Statistics, T-100 Segment

Table 24. International Load Factor on U.S. Airlines, Unadjusted, June 2017

2014 2015 2016 2017
January 79.6 78.8 79.5 79.2
February 75.0 75.3 73.9 74.3
March 79.2 79.5 79.4 78.7
April 80.1 77.1 77.3 80.8
May 82.3 80.8 79.3 80.1
June 84.4 84.4 84.5 84.9
July 84.4 85.8 86.0
August 85.5 86.0 84.3
September 81.6 81.4 81.1
October 79.8 81.6 80.1
November 76.2 78.1 78.9
December 80.8 80.3 81.2
6 Mo. Value 80.3 79.5 79.2 79.9
Yr. Value 81.0 81.0 80.7
Notes:

Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

Source:

Bureau of Transportation Statistics, T-100 Segment