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Cheap flights from St Louis (STL) to Phoenix (PHX)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Phoenix (PHX)

How to find the cheapest flight from St Louis (STL) to Phoenix (PHX)
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How to find the cheapest flight from St Louis (STL) to Phoenix (PHX)
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How to find the cheapest flight from St Louis (STL) to Phoenix (PHX)
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Cheap flights from St Louis to Phoenix in June , July 2026

30 Jun - 04 Jul $ 584.00
STL
St Louis
United Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
United Airlines
1 STOPS
STL
St Louis
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30 Jun - 04 Jul $ 709.00
STL
St Louis
Frontier Airlines
2 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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29 Jun - 09 Jul $ 965.00
STL
St Louis
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to Phoenix

29 Jun - 01 Jul $ 653.00
STL
St Louis
Frontier Airlines
2 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
2 STOPS
STL
St Louis
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28 Jun - 30 Jun $ 967.00
STL
St Louis
United Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
United Airlines
1 STOPS
STL
St Louis
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29 Jun - 30 Jun $ 1,188.00
STL
St Louis
Alaska Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Alaska Airlines
1 STOPS
STL
St Louis
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One-way flights to Phoenix from St Louis

7:46 PM - 9:15 AM
Frontier Airlines
2 Stops
16h 30m
STL - PHX
$ 337
Kiwi
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8:35 AM - 2:20 PM
United Airlines
1 Stops
8h 35m
STL - PHX
$ 470
Kiwi
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9:06 AM - 11:25 AM
United Airlines
1 Stops
5h 19m
STL - PHX
$ 498
Kiwi
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How to find the cheapest flight from St Louis (STL) to Phoenix (PHX)

Related info for your journey
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How to find the cheapest flight from St Louis (STL) to Phoenix (PHX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Phoenix (PHX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.