Houston to San Antonio (IAH–SAT) — Airlines, Schedules & Connections
No flights match your filters.
No nonstop flights on this route. connecting options below.
IAH–SAT is served by 1 airline with nonstop service. United Airlines leads the route. The flight covers 190 miles in approximately 1h 2m. Beyond nonstop, 107 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, CM, EK | 85 | 319, 320, 739, 73G, E7W | 1h02-1h18 | Star Alliance | AC, CM, EK |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach San Antonio from Houston
| Metric | IAH→SAT | HOU→SAT | AUS→SAT |
|---|---|---|---|
| Distance from IAH | – | 24 mi | 140 mi |
| Nonstop airlines | 1 | 11 | 5 |
| Weekly flights | 183 | 27 | 2 |
| Flight time | 1h 2m | 0h 31m | – |
| Departure OTP | 75% | – | – |
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. With 183 weekly departures, this is a heavily served route.
IAH to SAT Flight Duration and Schedule
Nonstop flight time from IAH to SAT ranges from 1 hours 2 minutes to 1 hours 18 minutes. The route covers a distance of 190 miles (306 km). There are approximately 183 weekly flights outbound and 200 return, totaling 383 flights per week in both directions.
Connecting Options and Alternatives
107 one-stop connections are available, with the fastest taking approximately 2 hours via FTW. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Houston (HOU), Austin (AUS) and Tyler (TYR).