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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 November , December 2025

24 Nov - 12 Dec $ 128.00
STL
St Louis
Frontier Airlines
DIRECT
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
DIRECT
STL
St Louis
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24 Nov - 08 Dec $ 155.00
STL
St Louis
Frontier Airlines
DIRECT
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
DIRECT
STL
St Louis
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24 Nov - 01 Dec $ 203.00
STL
St Louis
Frontier Airlines
DIRECT
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
DIRECT
STL
St Louis
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Last minute flights from St Louis to Phoenix

24 Nov - 01 Dec $ 275.00
STL
St Louis
Frontier Airlines
DIRECT
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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28 Nov - 01 Dec $ 291.00
STL
St Louis
Frontier Airlines
DIRECT
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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23 Nov - 30 Nov $ 1,048.00
STL
St Louis
United Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
United Airlines
1 STOPS
STL
St Louis
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One-way flights to Phoenix from St Louis

3:53 PM - 3:53 PM
Frontier Airlines
0 Stops
3h 33m
STL - PHX
$ 64
Kiwi
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3:53 PM - 3:53 PM
Frontier Airlines
0 Stops
3h 33m
STL - PHX
$ 80
Kiwi
Pick dates
3:53 PM - 3:53 PM
Frontier Airlines
0 Stops
3h 33m
STL - PHX
$ 132
Kiwi
Pick dates

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.