Phoenix (PHX) to St Louis (STL) flights
Southwest Airlines, American Airlines fly nonstop from Phoenix Sky Harbor International Airport to St. Louis Lambert International Airport, with about 45 flights a week in July 2026. The 1,262-mile flight takes about 2h 50m gate to gate.
- Distance
- 1,262 mi · 2,031 km
- Flight time
- 2h 50m
- Airlines
- 2
- Seats filled
- 78%
Airlines flying PHX to STL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 32 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 219,404 | 2h 47m |
| American Airlines | 13 | Airbus A320-100/200, Airbus A319, Boeing 737-800 | 64,814 | 2h 56m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 6,109 | 2h 53m |
| Envoy AirSeasonal or ended | n/a | Embraer E175 | 1,787 | 2h 54m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175, Bombardier CRJ700 | 1,646 | 3h 3m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PHX to STL flight schedule
11 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 6:00am and the last at 6:55pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| WN 3280Southwest Airlines | 6:00am | 10:55am | 17 | 68% |
| WN 1755Southwest Airlines | 7:25am | 12:20pm | 16 | 81% |
| AA 3179American Airlines | 8:39am | 1:53pm | 4 | 71% |
| AA 590American Airlines | 12:30pm | 5:37pm | 27 | 75% |
| WN 4682Southwest Airlines | 1:15pm | 6:10pm | 4 | n/a |
| WN 3282Southwest Airlines | 1:20pm | 6:15pm | 11 | 73% |
| WN 3281Southwest Airlines | 1:30pm | 6:20pm | 21 | 86% |
| WN 2359Southwest Airlines | 3:25pm | 8:20pm | 26 | 77% |
| WN 1574Southwest Airlines | 5:40pm | 10:35pm | 9 | n/a |
| AA 890American Airlines | 6:52pm | 11:58pm | 8 | 76% |
| WN 1603Southwest Airlines | 6:55pm | 11:50pm | 12 | 58% |
Is PHX to STL on time?
From September 2025 to August 2026, 76% of 2,323 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 5am were the most punctual (95%), those around 8pm the least (54%). Most delay time was caused by late-arriving aircraft (52%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,632 | 75% | 13 min | 0.1% |
| American Airlines | 638 | 79% | 15 min | 0.6% |
| Frontier Airlines | 53 | 83% | 30 min | 1.9% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 5am to 6am | 211 | 95% | |
| 6am to 7am | 100 | 96% | |
| 7am to 8am | 113 | 94% | |
| 8am to 9am | 301 | 81% | |
| 9am to 10am | 145 | 84% | |
| 10am to 11am | 68 | 85% | |
| 11am to 12pm | 82 | 75% | |
| 12pm to 1pm | 138 | 77% | |
| 1pm to 2pm | 178 | 73% | |
| 2pm to 3pm | 79 | 57% | |
| 3pm to 4pm | 72 | 74% | |
| 4pm to 5pm | 195 | 63% | |
| 5pm to 6pm | 51 | 69% | |
| 6pm to 7pm | 287 | 70% | |
| 7pm to 8pm | 119 | 74% | |
| 8pm to 9pm | 172 | 54% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 164 | 19,684 | |
| September 2025 | 157 | 19,646 | |
| October 2025 | 200 | 25,535 | |
| November 2025 | 187 | 24,619 | |
| December 2025 | 209 | 26,034 | |
| January 2026 | 198 | 24,865 | |
| February 2026 | 192 | 23,565 | |
| March 2026 | 238 | 32,131 | |
| April 2026 | 207 | 25,157 | |
| May 2026 | 203 | 26,173 | |
| June 2026 | 161 | 22,538 | |
| July 2026 | 200 | 23,970 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.