$124 Cheap United flights St. Louis (STL) to Seattle (SEA)

$124 Cheap United flights St. Louis (STL) to Seattle (SEA)

Prices were available within the past 7 days and start at $124 for one-way flights and $303 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 29 - Sun, Aug 3

STL

St. Louis

SEA

Seattle

$303 Roundtrip, found 19 hours ago

$303

Roundtrip

found 19 hours ago

Select United flight, departing Tue, Jul 29 from St. Louis to Seattle, returning Sun, Aug 3, priced at $303 found 19 hours ago

Fri, Aug 1 - Mon, Aug 4

STL

St. Louis

SEA

Seattle

$314 Roundtrip, found 19 hours ago

$314

Roundtrip

found 19 hours ago

Select United flight, departing Fri, Aug 1 from St. Louis to Seattle, returning Mon, Aug 4, priced at $314 found 19 hours ago

Tue, Jul 29 - Sun, Aug 3

STL

St. Louis

SEA

Seattle

$331 Roundtrip, found 19 hours ago

$331

Roundtrip

found 19 hours ago

Select United flight, departing Tue, Jul 29 from St. Louis to Seattle, returning Sun, Aug 3, priced at $331 found 19 hours ago

Sat, Jul 5 - Wed, Jul 16

STL

St. Louis

SEA

Seattle

$337 Roundtrip, found 1 day ago

$337

Roundtrip

found 1 day ago

Select United flight, departing Sat, Jul 5 from St. Louis to Seattle, returning Wed, Jul 16, priced at $337 found 1 day ago

Tue, Jul 29 - Sun, Aug 3

STL

St. Louis

SEA

Seattle

$338 Roundtrip, found 19 hours ago

$338

Roundtrip

found 19 hours ago

Select United flight, departing Tue, Jul 29 from St. Louis to Seattle, returning Sun, Aug 3, priced at $338 found 19 hours ago

Tue, Jul 29 - Sun, Aug 3

STL

St. Louis

SEA

Seattle

$348 Roundtrip, found 19 hours ago

$348

Roundtrip

found 19 hours ago

Select United flight, departing Tue, Jul 29 from St. Louis to Seattle, returning Sun, Aug 3, priced at $348 found 19 hours ago