$72 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

$72 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

Prices were available within the past 7 days and start at $72 for one-way flights and $144 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 28 - Tue, Jun 3

DEN

Denver

SEA

Seattle

$144 Roundtrip, found 6 hours ago

$144

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Wed, May 28 from Denver to Seattle, returning Tue, Jun 3, priced at $144 found 6 hours ago

Wed, May 28 - Sun, Jun 1

DEN

Denver

SEA

Seattle

$146 Roundtrip, found 6 hours ago

$146

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Wed, May 28 from Denver to Seattle, returning Sun, Jun 1, priced at $146 found 6 hours ago

Mon, Jul 21 - Tue, Jul 29

DEN

Denver

SEA

Seattle

$148 Roundtrip, found 11 hours ago

$148

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Mon, Jul 21 from Denver to Seattle, returning Tue, Jul 29, priced at $148 found 11 hours ago

Mon, Jun 30 - Sat, Jul 19

DEN

Denver

SEA

Seattle

$168 Roundtrip, found 3 days ago

$168

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Jun 30 from Denver to Seattle, returning Sat, Jul 19, priced at $168 found 3 days ago

Wed, May 28 - Sun, Jun 1

DEN

Denver

SEA

Seattle

$175 Roundtrip, found 6 hours ago

$175

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Wed, May 28 from Denver to Seattle, returning Sun, Jun 1, priced at $175 found 6 hours ago

Tue, May 27 - Sun, Jun 1

DEN

Denver

SEA

Seattle

$177 Roundtrip, found 6 hours ago

$177

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Tue, May 27 from Denver to Seattle, returning Sun, Jun 1, priced at $177 found 6 hours ago

Thu, Jul 3 - Sat, Jul 19

DEN

Denver

SEA

Seattle

$178 Roundtrip, found 3 days ago

$178

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jul 3 from Denver to Seattle, returning Sat, Jul 19, priced at $178 found 3 days ago