$49 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

$49 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

Prices were available within the past 7 days and start at $49 for one-way flights and $90 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 21 - Tue, Apr 28

DEN

Denver

SEA

Seattle

$90 Roundtrip, found 6 days ago

$90

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Apr 21 from Denver to Seattle, returning Tue, Apr 28, priced at $90 found 6 days ago

Thu, Apr 16 - Tue, May 5

DEN

Denver

SEA

Seattle

$93 Roundtrip, found 6 days ago

$93

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Apr 16 from Denver to Seattle, returning Tue, May 5, priced at $93 found 6 days ago

Tue, Apr 21 - Sat, Apr 25

DEN

Denver

SEA

Seattle

$95 Roundtrip, found 6 days ago

$95

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Apr 21 from Denver to Seattle, returning Sat, Apr 25, priced at $95 found 6 days ago

Sat, Apr 18 - Tue, Apr 28

DEN

Denver

SEA

Seattle

$103 Roundtrip, found 6 days ago

$103

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Apr 18 from Denver to Seattle, returning Tue, Apr 28, priced at $103 found 6 days ago

Thu, Apr 16 - Sat, May 2

DEN

Denver

SEA

Seattle

$106 Roundtrip, found 6 days ago

$106

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Apr 16 from Denver to Seattle, returning Sat, May 2, priced at $106 found 6 days ago

Sat, Apr 18 - Sat, Apr 25

DEN

Denver

SEA

Seattle

$108 Roundtrip, found 6 days ago

$108

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Apr 18 from Denver to Seattle, returning Sat, Apr 25, priced at $108 found 6 days ago