$102 Cheap Frontier Airlines flights St. Louis (STL) to Seattle (SEA)

$102 Cheap Frontier Airlines flights St. Louis (STL) to Seattle (SEA)

Prices were available within the past 7 days and start at $102 for one-way flights and $192 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jan 7 - Thu, Jan 15

STL

St. Louis

SEA

Seattle

$192 Roundtrip, found 3 days ago

$192

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Jan 7 from St. Louis to Seattle, returning Thu, Jan 15, priced at $192 found 3 days ago

Fri, Jan 9 - Sun, Jan 11

STL

St. Louis

SEA

Seattle

$262 Roundtrip, found 3 days ago

$262

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jan 9 from St. Louis to Seattle, returning Sun, Jan 11, priced at $262 found 3 days ago