The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Washington Dulles International ⇄ Mexico City IAD–MEX

Airlines flew 1,371 flights between Washington Dulles International IAD in Washington, DC and Mexico City, Mexico MEX in Mexico City, MX in the twelve months to July 2026, both directions together: 163,750 passengers in 228,732 seats, 72% of them filled, and 257,713 pounds of freight. 1,864 miles, about 132 minutes in the air, on 3 airlines: United Air Lines Inc. (732), Aeromexico (637), Delta Air Lines Inc. (2).

1,371
flights, twelve months
IAD-MEX: 693 · MEX-IAD: 678
163,750
passengers
72% of seats filled
1,864
miles
about 132 minutes airborne
3
airlines
4 aircraft types

Flights by month both directions

03264961281/254/257/2510/251/264/26687/26
By month, as a table
flights
1/25122
2/25112
3/25124
4/25121
5/25124
6/25118
7/25128
8/25124
9/25121
10/25124
11/25121
12/25124
1/26120
2/26110
3/26125
4/26119
5/26125
6/2690
7/2668

Passengers by month

04,5499,09813,64718,1961/254/257/2510/251/264/269,2457/26
By month, as a table
passengers
1/2514,150
2/2510,023
3/2512,655
4/2514,655
5/2513,566
6/2514,092
7/2518,196
8/2517,514
9/2512,561
10/2515,161
11/2515,532
12/2517,559
1/2614,211
2/2610,617
3/2613,677
4/2613,953
5/2613,948
6/269,772
7/269,245

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA73287,50972%scheduled passenger service
Aeromexico AM63775,88071%scheduled passenger service
Delta Air Lines Inc. DL236191%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing B737 Max 8001,258166147,832
Boeing B737 Max 9008218112,156
Boeing 737-800291613,401
Boeing 757-2002199361

IAD → MEX this direction alone · flown January 2025 to July 2026

693 flights of 365 scheduled, 80,549 passengers in 115,590 seats, 209,036 pounds of freight, 3,390 pounds of mail. United Air Lines Inc. 361; Aeromexico 332.

MEX → IAD this direction alone · flown January 2025 to July 2026

678 flights of 365 scheduled, 83,201 passengers in 113,142 seats, 48,677 pounds of freight. United Air Lines Inc. 371; Aeromexico 305; Delta Air Lines Inc. 2.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Washington Dulles International IAD and Mexico City, Mexico MEX; all routes.