Flights Washington → San Antonio
IAD → SAT
How long is the flight from Washington to San Antonio?
The flight from Washington (IAD) to San Antonio (SAT) takes 3h 11m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
This flight route connects Washington to San Antonio, operating with a high on-time performance rate of 90%. The flights use Canadair Regional Jet 700 and Embraer 170 aircraft, averaging a delay of just 4.6 minutes per flight out of the total 174 flights recorded.
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 Washington (IAD) → San Antonio (SAT) route is operated by United Airlines. Across 427 flights monitored in recent months, 87% arrived on time (within 15 min of schedule), with an average delay of 16 minutes. The cancellation rate is 2.58%. FlightGuard's average computed risk is 19.2/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At San Antonio the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Washington the average ATFM delay is 5.5 minutes.
Heading to San Antonio: what to expect in this direction
Flying from Washington (IAD) to San Antonio (SAT) heads west for about 2,189 km, a flight time of roughly 3h 11m.
Departures from Washington on this leg cluster in the midday window: about 50% of IAD-SAT flights take off then.
Air-traffic congestion: departing Washington the average ATFM delay is 5.5 min (atfm); arriving into San Antonio it is 5.5 min (atfm).
Across 427 tracked IAD-SAT flights, 87% left on time with an average delay of 16 min and a 2.6% cancellation rate.
Route facts
Flights on this route
Check the risk of a specific flight.
Flexible on this trip? Compare flights
Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 83% | 5 min | 1.3% |
Airlines operating IAD-SAT
Airports
Frequently asked questions about IAD-SAT
The flight from Washington (IAD) to San Antonio (SAT) takes 3h 11m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Washington (IAD) -> San Antonio (SAT) route, on-time performance is 87% with an average delay of 16 minutes, based on 427 tracked flights.
The cancellation rate on Washington-San Antonio is 2.58% across 427 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 San Antonio, 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.
