Direct flights from San Antonio to Houston
51 nonstop flights a week on 1 airline. Zero layovers — one hop from SAT to IAH.
Flight time: about 36m nonstop
Which days does it fly?
When does it fly?
Departure times in San Antonio local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| United UAL1322 | 5:39a | 38m | Wed–Thu |
| United ASH6248 | 5:40a | 36m | Mon, Tue, Fri, Sat, Sun |
| United UAL410 | 7:40a | 36m | Mon, Tue, Thu, Fri |
| United UAL410 | 7:45a | 37m | Wed, Sat, Sun |
| United UAL2291 | 9:41a | 37m | Mon, Tue, Wed, Fri, Sat |
| United SKW5526 | 9:41a | 36m | Sat |
| United UAL2291 | 9:48a | 35m | Sun |
| United SKW6081 | 11:21a | 40m | Sun |
| United ASH6155 | 11:23a | 49m | Sun |
| United ASH6155 | 11:40a | 36m | Fri–Sat |
| United ASH6155 | 11:45a | 36m | Mon |
| United UAL2471 | 12:05p | 31m | Tue |
| United UAL2471 | 12:24p | 36m | Thu |
| United UAL2471 | 12:26p | 40m | Wed |
| United SKW6081 | 12:43p | 37m | Sun |
| United UAL2291 | 1:35p | 33m | Thu |
| United SKW5526 | 2:23p | 36m | Mon, Sat |
| United SKW5526 | 2:25p | 36m | Tue–Wed |
| United SKW5526 | 2:49p | 36m | Sun |
| United UAL404 | 4:18p | 36m | Tue, Fri, Sat, Sun |
| United UAL404 | 4:28p | 53m | Mon, Thu |
| United SKW5526 | 4:48p | 36m | Thu |
| United UAL404 | 5:49p | 34m | Wed |
| United UAL275 | 6:02p | 35m | Wed, Fri, Sat |
| United UAL275 | 6:10p | 36m | Thu, Sun |
| United UAL275 | 6:22p | 34m | Tue |
| United UAL275 | 6:27p | 40m | Mon |
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The route
One hop: SAT → IAHDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from San Antonio (SAT) to Houston (IAH)
San Antonio International Airport (SAT) has 51 nonstop flights a week to Houston (IAH), operated by United. No layovers, no connections — one hop out of SAT and you're there.
This route flies every day of the week, so any travel day works. Route data updated September 2026 from observed departures.
Route data updated September 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from San Antonio to Houston?
The nonstop flight from San Antonio (SAT) to Houston (IAH) takes about 36m in the air, based on recently observed nonstop departures.
How long does it take to drive from San Antonio to Houston?
Driving from San Antonio to Houston takes about 2h 58m — roughly 199 miles — so the car is a real alternative on this route. The nonstop flight takes about 36m.