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

George Bush Intcntl/Houston ⇄ San Antonio International IAH–SAT

Airlines flew 6,515 flights between George Bush Intcntl/Houston IAH in Houston, TX and San Antonio International SAT in San Antonio, TX in the twelve months to July 2026, both directions together: 592,088 passengers in 772,515 seats, 77% of them filled, and 10,376,943 pounds of freight. 191 miles, about 38 minutes in the air, on 13 airlines: United Air Lines Inc. (4,603), Mesa Airlines Inc. (964), ABX Air Inc (502), SkyWest Airlines Inc. (213) and 9 more. Planning to fly it yourself? The weather and winds along this route right now.

6,515
flights, twelve months
IAH-SAT: 3,172 · SAT-IAH: 3,343
592,088
passengers
77% of seats filled
191
miles
about 38 minutes airborne
13
airlines
22 aircraft types

Flights by month both directions

01412824245651/254/257/2510/251/264/265627/26
By month, as a table
flights
1/25471
2/25444
3/25540
4/25517
5/25553
6/25523
7/25555
8/25555
9/25533
10/25559
11/25513
12/25535
1/26537
2/26505
3/26565
4/26553
5/26558
6/26540
7/26562

Passengers by month

013,91427,82841,74155,6551/254/257/2510/251/264/2649,0307/26
By month, as a table
passengers
1/2545,897
2/2544,223
3/2549,652
4/2541,524
5/2551,478
6/2551,161
7/2552,180
8/2547,706
9/2549,629
10/2553,415
11/2546,943
12/2552,515
1/2645,881
2/2644,662
3/2655,655
4/2649,714
5/2649,332
6/2647,606
7/2649,030

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA4,603521,31776%scheduled passenger service
Mesa Airlines Inc. YV96455,69279%scheduled passenger service
ABX Air Inc ABX5020scheduled cargo service
SkyWest Airlines Inc. OO21311,77873%scheduled passenger service
United Parcel Service 5X2050scheduled cargo service
Delta Air Lines Inc. DL91,10083%scheduled passenger service
American Airlines Inc. AA81,13087%scheduled passenger service
Spirit Air Lines NK351582%scheduled passenger service
Aeroenlaces Nacionales, S.A. de C.V. d/b/a VivaAerobus VB333251%scheduled passenger service
Federal Express Corporation FX20scheduled cargo service
Aeromexico AM1181100%scheduled passenger service
CommuteAir LLC dba CommuteAir C514386%scheduled passenger service
Amerijet International M610scheduled cargo service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1751,1757367,470
Airbus Industrie A3191,123126115,854
Boeing 737-700/700LR/Max 71,001126106,011
Boeing 737-80063916678,470
Airbus Industrie A320-100/20062415072,521
Boeing 767-300/300ER62400
Boeing 737-900ER45517958,098
Boeing B737 Max 80027016631,620
Boeing B737 Max 90026117929,955
Boeing 737-90024117930,021
Airbus Industrie A300-600/R/CF/RCF4000
Boeing 757-2002300
Boeing 767-200/ER/EM2200
Airbus Industrie A321Neoxlr5212716
Airbus Industrie A321-200n3210547
Canadair RJ-200ER /RJ-4402500
A220-300 BD-500-1A112130243
Boeing 757-3001234200
Boeing 777-200ER/200LR/233LR1276152
Embraer-14515043
Airbus Industrie A320-200n1176167
McDonnell Douglas MD-11100

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

3,172 flights of 3,182 scheduled, 295,923 passengers in 383,648 seats, 5,642,537 pounds of freight, 51,012 pounds of mail. United Air Lines Inc. 2,295; Mesa Airlines Inc. 479; ABX Air Inc 253; SkyWest Airlines Inc. 104; United Parcel Service 30; Delta Air Lines Inc. 5; American Airlines Inc. 3; Spirit Air Lines 2; Aeromexico 1.

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

3,343 flights of 3,322 scheduled, 296,165 passengers in 388,867 seats, 4,734,406 pounds of freight, 1,757,947 pounds of mail. United Air Lines Inc. 2,308; Mesa Airlines Inc. 485; ABX Air Inc 249; United Parcel Service 175; SkyWest Airlines Inc. 109; American Airlines Inc. 5; Delta Air Lines Inc. 4; Aeroenlaces Nacionales, S.A. de C.V. d/b/a VivaAerobus 3; Federal Express Corporation 2; CommuteAir LLC dba CommuteAir 1; Amerijet International 1; Spirit Air Lines 1.

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: George Bush Intcntl/Houston IAH and San Antonio International SAT; all routes.