Houston to San Antonio (IAH–SAT) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
IAH–SAT is served by 3 airlines with nonstop service. United Airlines and Delta Air Lines lead the route. The flight covers 190 miles in approximately 1h 8m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, CM, EK | 87 | 319, 320, 738, 739, 73G, 7M9, E75L, E7W | 1h04-1h11 | Star Alliance | AC, CM, EK | |
| DL Delta Air Lines | 0 | – | – | SkyTeam | – | |
| TWY TWY | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach San Antonio from Houston
| Metric | IAH→SAT | HOU→SAT | CLL→SAT |
|---|---|---|---|
| Distance from IAH | – | 24 mi | 74 mi |
| Nonstop airlines | 3 | 15 | 1 |
| Weekly flights | 180 | 42 | – |
| Flight time | 1h 8m | 1h | 0h 27m |
| Departure OTP | 93% | – | – |
Travel Essentials
IAH: CDT · SAT: CDT
When it's 6:00 PM in Houston, it's 6:00 PM in San Antonio.
IAH has no direct rail link to downtown Houston. The IAH Express bus runs from Houston Amtrak/Greyhound station via Park & Ride to Terminal C (60–90 min, $1.25 with METRO Q card). This is the only transit option; Houston's rail network does not reach the airport.Taxis from downtown Houston cost $50–70 and take 40–60 minutes. Ride-hails (Uber, Lyft) are typically $35–55. IAH sits 23 miles north of downtown on the North Freeway (I-45); traffic is heavy during morning and evening rush. Remote economy parking lots serve all terminals via shuttle.
IAH–SAT Quick Facts
Frequently Asked Questions
Flights from IAH to SAT
George Bush Intercontinental Airport (IAH) and San Antonio International Airport (SAT) are connected by nonstop service from United Airlines and Delta Air Lines. With 180 weekly departures, this is a heavily served route.
IAH to SAT Flight Duration and Schedule
Nonstop flight time from IAH to SAT is about 1 hours 8 minutes gate to gate. The route covers a distance of 190 miles (306 km). There are approximately 180 weekly flights outbound and 177 return, totaling 357 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Dallas Fort Worth, Louis Armstrong New Orleans and El Paso. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Houston (HOU), College Station (CLL) and Austin (AUS).