Book Cheap Flights from Saint Louis (STL) with Alaska Airlines

Find round-trip flight deals from Saint Louis.*

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Saint Louis (STL)to

Anchorage (ANC)
Jan 13, 2027 - Jan 16, 2027
From
$623
Seen: 13 hours ago
Round-trip
Saver

Saint Louis (STL)to

Seattle (SEA)
Jan 26, 2027 - Jan 29, 2027
From
$477
Seen: 13 hours ago
Round-trip
Saver

Saint Louis (STL)to

Portland (PDX)
Feb 17, 2027 - Feb 24, 2027
From
$419
Seen: 13 hours ago
Round-trip
Saver

Saint Louis (STL)to

Fairbanks (FAI)
Jan 27, 2027 - Jan 28, 2027
From
$506
Seen: 13 hours ago
Round-trip
Saver

Saint Louis (STL)to

Bellingham (BLI)
Jan 7, 2027 - Jan 8, 2027
From
$529
Seen: 13 hours ago
Round-trip
Saver
*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.