$59 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

$59 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

Prices were available within the past 7 days and start at $59 for one-way flights and $137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 6 - Mon, Nov 10

DEN

Denver

SEA

Seattle

$137 Roundtrip, found 1 day ago

$137

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Nov 6 from Denver to Seattle, returning Mon, Nov 10, priced at $137 found 1 day ago

Sat, Oct 25 - Wed, Oct 29

DEN

Denver

SEA

Seattle

$140 Roundtrip, found 16 hours ago

$140

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sat, Oct 25 from Denver to Seattle, returning Wed, Oct 29, priced at $140 found 16 hours ago

Wed, Oct 22 - Tue, Oct 28

DEN

Denver

SEA

Seattle

$152 Roundtrip, found 16 hours ago

$152

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Wed, Oct 22 from Denver to Seattle, returning Tue, Oct 28, priced at $152 found 16 hours ago

Wed, Oct 22 - Mon, Oct 27

DEN

Denver

SEA

Seattle

$153 Roundtrip, found 16 hours ago

$153

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Wed, Oct 22 from Denver to Seattle, returning Mon, Oct 27, priced at $153 found 16 hours ago

Fri, Oct 24 - Mon, Oct 27

DEN

Denver

SEA

Seattle

$154 Roundtrip, found 16 hours ago

$154

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Fri, Oct 24 from Denver to Seattle, returning Mon, Oct 27, priced at $154 found 16 hours ago

Thu, Nov 6 - Mon, Nov 10

DEN

Denver

SEA

Seattle

$167 Roundtrip, found 1 day ago

$167

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Nov 6 from Denver to Seattle, returning Mon, Nov 10, priced at $167 found 1 day ago