Airlines with flights from Saint Louis to Phoenix

There are five airlines with scheduled flights between STL and PHX. Both Southwest and American Airlines operates non-stop flights from Saint Louis Airport to Phoenix Sky Harbor International and the flight time is 3 hours and 25 minutes.

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Direct

$Southwest Airlines from {( $airportFrom->city_name }} to Phoenix$

Non-stop

3h 25min

Direct

$American Airlines from {( $airportFrom->city_name }} to Phoenix$

Non-stop

3h 27min

Via Kansas City

4h 30min

Via Denver

4h 50min

Via Dallas

4h 50min

Via Dallas

5h 0min

Via San Antonio

5h 0min

Via Denver

5h 5min

Via Austin

5h 5min

Via Omaha

5h 10min

Via Las Vegas

5h 20min

Via Houston

5h 20min

Via Denver

5h 21min

Via Chicago

5h 25min

Via Salt Lake City

5h 30min

Via Minneapolis

5h 30min

Via Minneapolis

5h 34min

Via Nashville

5h 35min

Via Milwaukee

5h 40min

Via Chicago

5h 45min

Via Dallas

5h 45min

Via Houston

5h 55min

Via San Diego

5h 55min

Via Las Vegas

5h 57min

Via Chicago

6h 10min

Via Salt Lake City

6h 15min

Starts 06/08

Via Ontario

8h 55min

Schedules

Non-stop with Southwest Airlines

Total flight time: 3 hours and 25 minutes
Low-cost airline
Phoenix is a Southwest Airlines focus city (Operating base ).

32 flights per week
Boeing 737-800 (winglets) Passenger/BBJ2

Boeing 737MAX 8 Passenger

Boeing 737-700 Passenger (Scimitar Winglets)

STL

Direct

PHX

Flight

Mon

Jul 27

Tue

Jul 28

Wed

Jul 29

Thu

Jul 30

Fri

Jul 31

Sat

Aug 1

Sun

Aug 2

WN3967

05:45

06:10

05:45

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WN4673

07:20

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07:20

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WN143

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08:20

WN12

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09:40

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WN3968

13:20

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13:20

09:45

13:50

WN170

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13:40

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WN4615

19:20

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19:20

16:55

18:05

WN3306

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18:20

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WN4360

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21:15

21:45

20:45

21:45

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The timetable & schedule information was updated at 2026-04-21

Non-stop with American Airlines

Total flight time: 3 hours and 27 minutes
One World Alliance
Phoenix is a American Airlines hub.

14 flights per week
Boeing 737-800 Passenger

Airbus A320
First class available

STL

Direct

PHX

Flight

Mon

Jul 27

Tue

Jul 28

Wed

Jul 29

Thu

Jul 30

Fri

Jul 31

Sat

Aug 1

Sun

Aug 2

AA2574

08:01

AA3179

14:46

SHOW RETURN SCHEDULE

CLOSE RETURN SCHEDULE

CHECK PRICES FOR STL - PHX

The timetable & schedule information was updated at 2026-04-21

Via Kansas City with Southwest Airlines

Total flight time: 4h 30m - 7h 40m.
Low-cost airline
Phoenix is a Southwest Airlines focus city (Operating base ).

69 flights per week
Boeing 737-800 (winglets) Passenger/BBJ2

Boeing 737MAX 8 Passenger

Boeing 737-700 Passenger (Scimitar Winglets)

STL

Via MCI

PHX

Flight

Mon

Jul 27

Tue

Jul 28

Wed

Jul 29

Thu

Jul 30

Fri

Jul 31

Sat

Aug 1

Sun

Aug 2

WN3943
WN4651

08:10

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