$216 Cheap United flights St. Louis (STL) to Seattle (SEA)
Prices were available within the past 7 days and start at $216 for one-way flights and $359 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Sat, Aug 22 - Sat, Aug 29
STL
St. Louis
SEA
Seattle
$359 Roundtrip, found 6 days ago
$359
Roundtrip
found 6 days ago
Thu, Aug 20 - Sat, Aug 29
STL
St. Louis
SEA
Seattle
$374 Roundtrip, found 7 hours ago
$374
Roundtrip
found 7 hours ago
Find the cheapest month to fly from St. Louis (STL) to Seattle (SEA)
January is typically the cheapest month to fly
From $126 - $331 per traveler.
Travel information
Origin airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Southwest Airlines, United |
Popular airline | Delta |
Distance | 2728 km |
Average flight time | 4 hours 50 mins |
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Popular Domestic Routes in Seattle - Tacoma Intl.
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