Flights San Diego → St. Louis
SAN → STL
Route overview
The flight route from San Diego to St. Louis has a 73% on-time performance rate, with an average delay of 13 minutes when flights are not on time. Over the past year, there have been 105 total flights on this route, connecting passengers from San Diego International Airport, which opened in 1928, to Lambert-St. Louis International Airport, serving over 13 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 Diego (SAN) → St. Louis (STL) route is operated by Southwest Airlines. Across 137 flights monitored in recent months, 75% arrived on time (within 15 min of schedule), with an average delay of 13 minutes. The cancellation rate is 0.00%. FlightGuard's average computed risk is 17.1/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At St. Louis the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from San Diego the average ATFM delay is 2.0 minutes.
Heading to St. Louis: what to expect in this direction
Flying from San Diego (SAN) to St. Louis (STL) heads north-east for about 2,501 km, a flight time of roughly 3h 33m.
Departures from San Diego on this leg cluster in the overnight window: about 54% of SAN-STL flights take off then.
Air-traffic congestion: departing San Diego the average ATFM delay is 2.0 min (atfm); arriving into St. Louis it is 2.0 min (atfm).
Across 137 tracked SAN-STL flights, 75% left on time with an average delay of 13 min and a 0.0% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating SAN-STL
Airports
Frequently asked questions about SAN-STL
On the San Diego (SAN) -> St. Louis (STL) route, on-time performance is 75% with an average delay of 13 minutes, based on 137 tracked flights.
The cancellation rate on San Diego-St. Louis is 0.00% across 137 monitored flights.
The route is operated by 1 airline: Southwest 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.
