$175 Cheap Alaska Airlines flights St. Louis (STL) to Phoenix (PHX)

View $175 flight on Sun, Aug 31, 2025Opens in a new window

$175 Cheap Alaska Airlines flights St. Louis (STL) to Phoenix (PHX)

Prices were available within the past 7 days and start at $175 for one-way flights and $396 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Oct 14 - Tue, Oct 21
STL
St. Louis
PHX
Phoenix
$396 Roundtrip, found 1 day ago
$396
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Oct 14 from St. Louis to Phoenix, returning Tue, Oct 21, priced at $396 found 1 day ago
Flights from St. Louis (STL) to Phoenix (PHX)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Popular airline
Southwest Airlines
Distance
1259 mi
Average flight time
2 hours 18 mins

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