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

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

Prices were available within the past 7 days and start at for one-way flights and $339 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 2 - Wed, Jun 17

STL

St. Louis

SEA

Seattle

$339 Roundtrip, found 16 hours ago

$339

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Tue, Jun 2 from St. Louis to Seattle, returning Wed, Jun 17, priced at $339 found 16 hours ago

Tue, Jun 2 - Sat, Jun 13

STL

St. Louis

SEA

Seattle

$389 Roundtrip, found 16 hours ago

$389

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Tue, Jun 2 from St. Louis to Seattle, returning Sat, Jun 13, priced at $389 found 16 hours ago