Direct flights from Houston to San Antonio
57 nonstop flights a week on 2 airlines. Zero layovers — one hop from IAH to SAT.
Flight time: about 37m nonstop
Which days does it fly?
When does it fly?
Departure times in Houston local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Mesa ASH3234 | 7:25a | 35m | Thu |
| United UAL2250 | 7:39a | 38m | Thu |
| United UAL2250 | 7:52a | 34m | Mon, Wed, Sat, Sun |
| United UAL2250 | 8:03a | 38m | Fri |
| United UAL1371 | 9:42a | 34m | Mon, Tue, Wed, Sat |
| United UAL1371 | 9:48a | 34m | Fri, Sun |
| United UAL1371 | 10:01a | 34m | Thu |
| Mesa ASH6187 | 12:22p | 36m | Mon, Fri, Sat, Sun |
| Mesa ASH6187 | 12:30p | 36m | Tue–Wed |
| United UAL2030 | 2:52p | 38m | Mon, Sun |
| United UAL2030 | 2:55p | 33m | Sat |
| United UAL2030 | 3:08p | 37m | Fri |
| United UAL2030 | 3:16p | 38m | Wed |
| Mesa ASH4043 | 4:34p | 36m | Sat |
| Mesa ASH4043 | 4:38p | 36m | Mon, Fri |
| United UAL2030 | 4:43p | 34m | Tue |
| Mesa ASH4043 | 4:49p | 36m | Tue, Wed, Sun |
| American AAL2845 | 5:05p | 47m | Thu |
| United UAL1477 | 6:31p | 36m | Tue, Sun |
| United UAL1477 | 6:39p | 35m | Mon, Fri, Sat |
| Mesa ASH3237 | 6:46p | 37m | Sat |
| United UAL1477 | 6:54p | 38m | Wed |
| Mesa ASH4043 | 8:15p | 1h2m | Thu |
| United UAL1542 | 8:34p | 38m | Tue, Fri, Sat |
| United UAL1542 | 8:42p | 36m | Wed, Sun |
| United UAL1477 | 8:47p | 37m | Thu |
| United UAL2030 | 9:32p | 41m | Thu |
| United UAL1542 | 9:54p | 1h9m | Thu |
| United UAL2198 | 10:03p | 38m | Tue, Fri, Sat |
| United UAL2198 | 10:10p | 38m | Wed |
| United UAL2198 | 10:15p | 39m | Mon |
| United UAL2198 | 10:27p | 37m | Sun |
| United UAL2198 | 10:46p | 40m | Thu |
| United UAL1542 | 11:46p | 33m | Mon |
American
UnitedThe route
One hop: IAH → SATDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Houston (IAH) to San Antonio (SAT)
George Bush Intercontinental Airport (IAH) has 57 nonstop flights a week to San Antonio (SAT), operated by American and United. No layovers, no connections — one hop out of IAH and you're there.
This route flies every day of the week, so any travel day works. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Houston to San Antonio?
The nonstop flight from Houston (IAH) to San Antonio (SAT) takes about 37m in the air, based on recently observed nonstop departures.
How long does it take to drive from Houston to San Antonio?
Driving from Houston to San Antonio takes about 2h 58m — roughly 199 miles — so the car is a real alternative on this route. The nonstop flight takes about 37m.