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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 October , November 2026

28 Oct - 18 Nov $ 291.00
STL
St Louis
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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28 Oct - 04 Nov $ 307.00
STL
St Louis
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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21 Oct - 08 Nov $ 406.00
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

28 Oct - 31 Oct $ 331.00
STL
St Louis
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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28 Oct - 01 Nov $ 331.00
STL
St Louis
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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21 Oct - 31 Oct $ 412.00
STL
St Louis
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
STL
St Louis
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One-way flights to Phoenix from St Louis

4:18 PM - 6:46 PM
Frontier Airlines
1 Stops
5h 36m
STL - PHX
$ 163
Kiwi
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4:18 PM - 7:00 AM
Frontier Airlines
1 Stops
17h 46m
STL - PHX
$ 169
Kiwi
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4:19 PM - 6:44 PM
Frontier Airlines
1 Stops
5h 27m
STL - PHX
$ 230
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.