Southwest Airlines flights from Saint Louis (STL) to Phoenix Sky Harbor (PHX).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Mon,Sun
14:55
Saint Louis (STL) 2
17:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3816 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-02-09 through 2026-02-15 |
| Mon,Tue,Thu
14:55
Saint Louis (STL) 2
17:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3816 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-02-17 through 2026-02-23 |
| Mon
14:55
Saint Louis (STL) 2
17:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3816 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Operates only on 2026-03-02 |
| Mon-Fri
14:15
Saint Louis (STL) 2
16:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-01-06 through 2026-01-14 |
| Tue-Fri,Sun
14:15
Saint Louis (STL) 2
16:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-01-18 through 2026-01-23 |
| Mon-Fri
14:15
Saint Louis (STL) 2
16:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-01-26 through 2026-02-04 |
| Tue,Wed,Sun
14:15
Saint Louis (STL) 2
16:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-08 through 2026-02-11 |
| Tue,Wed
14:15
Saint Louis (STL) 2
16:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-18 through 2026-03-04 |
| Sat
17:25
Saint Louis (STL) 2
19:55
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-14 through 2026-02-28 |
| Thu,Fri,Sun
17:40
Saint Louis (STL) 2
20:10
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-01-11 through 2026-01-16 |
| Mon,Sun
17:40
Saint Louis (STL) 2
20:10
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-01-19 through 2026-01-25 |
| Thu,Fri,Sun
17:40
Saint Louis (STL) 2
20:10
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-01 through 2026-02-06 |
| Mon,Sun
17:40
Saint Louis (STL) 2
20:10
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-09 through 2026-02-15 |
| Mon,Tue,Thu
17:40
Saint Louis (STL) 2
20:10
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-17 through 2026-02-23 |
| Mon
17:40
Saint Louis (STL) 2
20:10
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Operates only on 2026-03-02 |
| Sat
17:50
Saint Louis (STL) 2
20:20
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-01-10 through 2026-02-07 |
| Mon,Thu,Fri
18:15
Saint Louis (STL) 2
20:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-12 through 2026-02-16 |
| Thu,Fri,Sun
18:15
Saint Louis (STL) 2
20:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3817 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-20 through 2026-03-01 |
| Mon-Fri
19:55
Saint Louis (STL) 2
22:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-01-06 through 2026-01-14 |
| Tue-Fri,Sun
19:55
Saint Louis (STL) 2
22:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-01-18 through 2026-01-23 |
| Mon-Fri
19:55
Saint Louis (STL) 2
22:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-01-26 through 2026-02-04 |
| Wed,Sun
19:55
Saint Louis (STL) 2
22:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-08 through 2026-02-11 |
| Tue
19:55
Saint Louis (STL) 2
22:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Operates only on 2026-02-10 |
| Tue,Wed
19:55
Saint Louis (STL) 2
22:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-18 through 2026-03-04 |
| Thu,Fri,Sun
20:45
Saint Louis (STL) 2
23:15
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-01-11 through 2026-01-16 |
| Mon,Sun
20:45
Saint Louis (STL) 2
23:15
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-01-19 through 2026-01-25 |
| Sun
20:45
Saint Louis (STL) 2
23:15
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Operates only on 2026-02-01 |
| Mon,Thu,Fri
20:45
Saint Louis (STL) 2
23:15
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-05 through 2026-02-09 |
| Tue,Thu,Sat,Sun
20:45
Saint Louis (STL) 2
23:15
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-14 through 2026-02-21 |
| Mon,Sat
20:45
Saint Louis (STL) 2
23:15
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-23 through 2026-03-02 |
| Mon,Thu,Fri
22:15
Saint Louis (STL) 2
00:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-02-12 through 2026-02-16 The flight arrives 1 day after departure. |
| Thu,Fri,Sun
22:15
Saint Louis (STL) 2
00:45
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3827 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-02-20 through 2026-03-01 The flight arrives 1 day after departure. |
| Sat
11:50
Saint Louis (STL) 2
13:00
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3877 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-08-08 through 2026-09-26 |
| Tue,Wed
11:55
Saint Louis (STL) 2
13:05
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3877 Non-stop Boeing 737-700 (Scimitar Winglets) 3:10 Effective 2026-08-04 through 2026-09-30 |
| Mon,Thu,Fri
11:55
Saint Louis (STL) 2
13:05
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3877 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-08-06 through 2026-09-28 |
| Tue,Wed
20:45
Saint Louis (STL) 2
21:55
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3878 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-08-04 through 2026-09-30 |
| Mon,Thu,Fri
20:45
Saint Louis (STL) 2
21:55
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3878 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-08-06 through 2026-09-28 |
| Sun
21:15
Saint Louis (STL) 2
22:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3878 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-08-09 through 2026-09-27 |
| Sun
15:35
Saint Louis (STL) 2
17:00
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3890 Non-stop Boeing 737-800 (73H) 3:25 Effective 2026-04-12 through 2026-05-17 |
| Sun
15:35
Saint Louis (STL) 2
17:00
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3890 Non-stop Boeing 737-800 (73H) 3:25 Operates only on 2026-05-31 |
| Sat
16:45
Saint Louis (STL) 2
18:05
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3890 Non-stop Boeing 737-800 (73H) 3:20 Effective 2026-04-11 through 2026-05-30 |
| Tue,Wed
17:35
Saint Louis (STL) 2
19:00
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3890 Non-stop Boeing 737-700 (Scimitar Winglets) 3:25 Effective 2026-04-07 through 2026-06-03 |
| Mon,Thu,Fri
18:00
Saint Louis (STL) 2
19:25
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3890 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2026-04-09 through 2026-06-01 |
| Mon,Thu,Fri
05:45
Saint Louis (STL) 2
06:55
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3967 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-06-04 through 2026-08-03 |
| Tue,Wed
06:10
Saint Louis (STL) 2
07:20
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3967 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-06-09 through 2026-07-29 |
| Sat
09:45
Saint Louis (STL) 2
10:55
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3968 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-06-06 through 2026-08-01 |
| Mon,Thu,Fri
13:20
Saint Louis (STL) 2
14:30
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3968 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-06-04 through 2026-08-03 |
| Sun
13:50
Saint Louis (STL) 2
15:00
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 3968 Non-stop Boeing 737-700 (Scimitar Winglets) 3:10 Effective 2026-06-07 through 2026-08-02 |
| Tue,Wed
05:55
Saint Louis (STL) 2
08:35
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 4036 Non-stop Boeing 737 MAX 8 (7M8) 3:40 Effective 2026-02-10 through 2026-02-11 |
| Mon,Tue,Fri,Sun
05:00
Saint Louis (STL) 2
07:35
Phoenix Sky Harbor (PHX) 4 Southwest Airlines WN 4110 Non-stop Boeing 737 MAX 8 (7M8) 3:35 Valid until 2026-01-04 |
- A domestic route departing from the Saint Louis airport (STL) and arriving at Phoenix Sky Harbor airport (PHX).
- The flight distance is 1259 miles, or 2025 km.
- The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-7 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 3:10 and 3:45.
