USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Site Notification

Site Notification

 Find the latest Coronavirus-related transportation statistics on the BTS COVID-19 landing page.

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

Table 1. Scheduled Systemwide (Domestic and International) Airline Travel on U.S. and Foreign Airlines, 2017-2018

Dataset Table:

Annual 1
2017 2018 Change % 2
Passengers (in millions) 965.4 1,011.5 4.8 3
Flights (in thousands) 9,761.4 10,012.3 2.6 4
Revenue Passenger Miles (in billions) 1,436.8 1,511.7 5.2 5
Available Seat-Miles (in billions) 1,742.4 1,822.0 4.6 6
Load Factor* 82.5 83.0 0.5 7
Flight Stage Length** 984.4 995.8 1.2 8
Passenger Trip Length*** 1,488.3 1,494.6 0.4 9


* Change in load factor points
** The average non-stop distance flown per departure in miles
*** The average distance flown per passenger in miles
Note: Percentage changes based on numbers prior to rounding.


Bureau of Transportation Statistics, T-100 Market and Segment