Flights San Francisco → St. Louis
SFO → STL
How long is the flight from San Francisco to St. Louis?
The flight from San Francisco (SFO) to St. Louis (STL) takes about 3h 54m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
Route overview
The flight route from San Francisco to St. Louis operates with an on-time performance rate of 59%, with flights typically experiencing a mean delay of 31.3 minutes. The route sees a total of 196 flights annually, and is served by Airbus A320 and A319 aircraft, operating into a destination airport that handles over thirteen million passengers per year.
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 Francisco (SFO) → St. Louis (STL) route is operated by United Airlines. Across 410 flights monitored in recent months, 49% arrived on time (within 15 min of schedule), with an average delay of 36 minutes. The cancellation rate is 0.98%. FlightGuard's average computed risk is 24.9/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At St. Louis the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from San Francisco the average ATFM delay is 5.5 minutes.
Heading to St. Louis: what to expect in this direction
Flying from San Francisco (SFO) to St. Louis (STL) heads east for about 2,786 km, a flight time of roughly 3h 54m.
Departures from San Francisco on this leg cluster in the overnight window: about 73% of SFO-STL flights take off then.
Air-traffic congestion: departing San Francisco the average ATFM delay is 5.5 min (atfm); arriving into St. Louis it is 5.5 min (atfm).
Across 410 tracked SFO-STL flights, 49% left on time with an average delay of 36 min and a 1.0% 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) | 83% | 5 min | 1.3% |
Airlines operating SFO-STL
Airports
Frequently asked questions about SFO-STL
The flight from San Francisco (SFO) to St. Louis (STL) takes about 3h 54m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
On the San Francisco (SFO) -> St. Louis (STL) route, on-time performance is 49% with an average delay of 36 minutes, based on 410 tracked flights.
The cancellation rate on San Francisco-St. Louis is 0.98% across 410 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 St. Louis, 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.
