Flights St. Louis → Phoenix
STL → PHX
Route overview
The flight route from St. Louis to Phoenix operates with an average on-time performance of 74%, with flights typically experiencing a mean delay of 17.8 minutes. Over the course of a year, this route sees approximately 633 total flights using either Airbus A319 or Boeing 737-300 aircraft, serving a destination airport that accommodates nearly 44.4 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 St. Louis (STL) → Phoenix (PHX) route is operated by American Airlines, Southwest Airlines. Across 823 flights monitored in recent months, 75% arrived on time (within 15 min of schedule), with an average delay of 16 minutes. The cancellation rate is 0.61%. FlightGuard's average computed risk is 18.6/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Phoenix the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from St. Louis the average ATFM delay is 2.0 minutes.
Heading to Phoenix: what to expect in this direction
Flying from St. Louis (STL) to Phoenix (PHX) heads west for about 2,026 km, a flight time of roughly 2h 57m.
Departures from St. Louis on this leg cluster in the overnight window: about 39% of STL-PHX flights take off then.
Air-traffic congestion: departing St. Louis the average ATFM delay is 2.0 min (atfm); arriving into Phoenix it is 2.0 min (atfm).
Across 823 tracked STL-PHX flights, 75% left on time with an average delay of 16 min and a 0.6% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| American Airlines (AA) | 74% | 16 min | 3.0% |
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating STL-PHX
Airports
Frequently asked questions about STL-PHX
On the St. Louis (STL) -> Phoenix (PHX) route, on-time performance is 75% with an average delay of 16 minutes, based on 823 tracked flights.
The cancellation rate on St. Louis-Phoenix is 0.61% across 823 monitored flights.
The route is operated by 2 airlines: American Airlines, Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Phoenix, 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.
