$140 Cheap American Airlines flights St. Louis (STL) to Seattle (SEA)

$140 Cheap American Airlines flights St. Louis (STL) to Seattle (SEA)

Prices were available within the past 7 days and start at $140 for one-way flights and $279 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 18 - Wed, Aug 26

STL

St. Louis

SEA

Seattle

$279 Roundtrip, found 4 days ago

$279

Roundtrip

found 4 days ago

Select American Airlines flight, departing Tue, Aug 18 from St. Louis to Seattle, returning Wed, Aug 26, priced at $279 found 4 days ago

Tue, Aug 18 - Wed, Aug 26

STL

St. Louis

SEA

Seattle

$329 Roundtrip, found 4 days ago

$329

Roundtrip

found 4 days ago

Select American Airlines flight, departing Tue, Aug 18 from St. Louis to Seattle, returning Wed, Aug 26, priced at $329 found 4 days ago

Sat, Aug 15 - Sun, Aug 23

STL

St. Louis

SEA

Seattle

$338 Roundtrip, found 6 days ago

$338

Roundtrip

found 6 days ago

Select American Airlines flight, departing Sat, Aug 15 from St. Louis to Seattle, returning Sun, Aug 23, priced at $338 found 6 days ago

Mon, Sep 7 - Mon, Sep 14

STL

St. Louis

SEA

Seattle

$369 Roundtrip, found 1 day ago

$369

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Sep 7 from St. Louis to Seattle, returning Mon, Sep 14, priced at $369 found 1 day ago

Sun, Aug 23 - Mon, Aug 31

STL

St. Louis

SEA

Seattle

$410 Roundtrip, found 2 hours ago

$410

Roundtrip

found 2 hours ago

Select American Airlines flight, departing Sun, Aug 23 from St. Louis to Seattle, returning Mon, Aug 31, priced at $410 found 2 hours ago