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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

BTS> TranStats
(The month selection does not apply to on-time data.)Show all airports (by state)
Washington, DC: Washington Dulles International (IAD)Scheduled Services except Freight/MailBTS Data as of 7/24/2024
Summary Data (U.S. Flights Only)Carrier Shares for May 2023 - April 2024
Passengers*2023**2024**%ChgRank***
Arrival7,051k7,658k8.61%33
Departure7,011k7,608k8.52%33
Scheduled Flights
Departures78,07178,6670.76%32
Freight/Mail (lb.) (Scheduled and Non-Scheduled)
Total219m228m4.26%43
Carriers
Scheduled2220-9.09%
* Scheduled enplaned revenue passengers.
** 12 months ending April of each year.
*** Among 771 U.S. airports, 12 months ending April 2024
CarrierPassengersShare
United 9,36761.36%
Mesa 1,3999.16%
Delta 7054.62%
Alaska 6174.04%
Southwest 4082.67%
Other2,77118.15%
Based on enplaned passengers(000) both arriving and departing.
Total Passengers (U.S. Flights, in thousands)Top 10 Destination Airports (U.S. Only, Passengers (000))
*  Before October 2002, only carriers operating aircraft with more than 60 seats or 18,000 pounds in payload reported traffic data.
** 2024 represents data for May 2023 - April 2024.
Source: T-100 Domestic Market (US Carriers).
IAD vs. National Departure Delays (Major U.S. Carriers)IAD On-Time Performance Summary (Major U.S. Carriers Only)
A flight is considered delayed when it arrived or departed 15 or more minutes than the schedule. Delayed minutes are calculated from delayed flights only.
Domestic Flights, 2019-2024
% On Time201920202021202220232024*Rank**
Departure83%86%83%79%81%82%4
Arrival81%86%82%80%81%81%6
Avg Delay (min.)
Departure93.5582.5678.0578.2377.7276.6725
Arrival80.6266.7569.3676.0268.9869.2811
% Cancelled
Total1.43%5.86%1.48%2.44%1.15%1.45%24
Number of Flights (000)
Total69.241.750.556.749.850.8
Number of Reporting Carriers
Total131113131112
* May 2023 - April 2024 .
** Ranked only for major U.S. airports, May 2023 - April 2024.