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

Ronald Reagan Washington Ntl ⇄ George Bush Intcntl/Houston DCA–IAH

Airlines flew 6,400 flights between Ronald Reagan Washington Ntl DCA in Washington, DC and George Bush Intcntl/Houston IAH in Houston, TX in the twelve months to July 2026, both directions together: 577,565 passengers in 810,761 seats, 71% of them filled, and 88 pounds of freight. 1,208 miles, about 172 minutes in the air, on 5 airlines: United Air Lines Inc. (4,759), Republic Airline (971), PSA Airlines Inc. (663), American Airlines Inc. (6) and 1 more. Planning to fly it yourself? The weather and winds along this route right now.

6,400
flights, twelve months
DCA-IAH: 3,202 · IAH-DCA: 3,198
577,565
passengers
71% of seats filled
1,208
miles
about 172 minutes airborne
5
airlines
11 aircraft types

Flights by month both directions

01452904365811/254/257/2510/251/264/265357/26
By month, as a table
flights
1/25355
2/25364
3/25409
4/25404
5/25408
6/25383
7/25399
8/25412
9/25545
10/25581
11/25525
12/25543
1/26527
2/26506
3/26553
4/26565
5/26570
6/26538
7/26535

Passengers by month

013,24926,49839,74852,9971/254/257/2510/251/264/2652,4597/26
By month, as a table
passengers
1/2536,160
2/2534,210
3/2542,400
4/2541,869
5/2544,658
6/2542,839
7/2545,101
8/2543,776
9/2543,025
10/2551,429
11/2546,278
12/2551,244
1/2640,620
2/2642,121
3/2652,997
4/2648,668
5/2652,518
6/2652,430
7/2652,459

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA4,759494,83972%scheduled passenger service
Republic Airline YX97145,61262%scheduled passenger service
PSA Airlines Inc. OH66336,06174%scheduled passenger service
American Airlines Inc. AA696794%scheduled passenger service
Alaska Airlines Inc. AS18654%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A3191,270126119,023
Embraer ERJ-1759717645,612
Boeing 737-700/700LR/Max 795712692,093
Airbus Industrie A320-100/20092815096,963
Boeing 737-80083616698,952
Boeing B737 Max 80072616683,921
Canadair CRJ 9005217628,090
Canadair RJ-700142657,971
Boeing B737 Max 900271792,710
Airbus Industrie A321-200n192001,915
Boeing 737-900ER3179315

DCA → IAH this direction alone · flown January 2025 to July 2026

3,202 flights of 3,273 scheduled, 281,368 passengers in 403,918 seats, 10 pounds of freight. United Air Lines Inc. 2,382; Republic Airline 485; PSA Airlines Inc. 328; American Airlines Inc. 6; Alaska Airlines Inc. 1.

IAH → DCA this direction alone · flown January 2025 to July 2026

3,198 flights of 3,276 scheduled, 296,197 passengers in 406,843 seats, 78 pounds of freight. United Air Lines Inc. 2,377; Republic Airline 486; PSA Airlines Inc. 335.

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: Ronald Reagan Washington Ntl DCA and George Bush Intcntl/Houston IAH; all routes.