Flights San Antonio → Houston
SAT → IAH
Route overview
The flight route from San Antonio to Houston operates with a high level of punctuality, achieving an on-time performance rate of 88%. Over the past year, there have been 707 flights along this route, with an average delay time of 6.3 minutes per flight. The aircraft used include Airbus A319 and various Boeing 737 models, as well as Airbus A320s. Houston's airport, which opened in 1942, serves over 40 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The San Antonio (SAT) → Houston (IAH) route is operated by United Airlines. Across 949 flights monitored in recent months, 88% arrived on time (within 15 min of schedule), with an average delay of 8 minutes. The cancellation rate is 2.95%. FlightGuard's average computed risk is 23.3/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Houston the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from San Antonio the average ATFM delay is 2.0 minutes.
Heading to Houston: what to expect in this direction
Flying from San Antonio (SAT) to Houston (IAH) heads east for about 306 km, a flight time of roughly 48m.
Departures from San Antonio on this leg cluster in the overnight window: about 47% of SAT-IAH flights take off then.
Air-traffic congestion: departing San Antonio the average ATFM delay is 2.0 min (atfm); arriving into Houston it is 2.0 min (atfm).
Across 949 tracked SAT-IAH flights, 88% left on time with an average delay of 8 min and a 3.0% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
Airlines operating SAT-IAH
Airports
Frequently asked questions about SAT-IAH
On the San Antonio (SAT) -> Houston (IAH) route, on-time performance is 88% with an average delay of 8 minutes, based on 949 tracked flights.
The cancellation rate on San Antonio-Houston is 2.95% across 949 monitored flights.
The route is operated by 1 airline: United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Houston, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
