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

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

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 14 - Wed, May 14

SEA

Seattle

DEN

Denver

$144 Roundtrip, found 2 days ago

$144

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, May 14 from Seattle to Denver, returning Wed, May 14, priced at $144 found 2 days ago

Mon, Jul 21 - Fri, Jul 25

SEA

Seattle

DEN

Denver

$148 Roundtrip, found 13 hours ago

$148

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Mon, Jul 21 from Seattle to Denver, returning Fri, Jul 25, priced at $148 found 13 hours ago

Thu, May 15 - Tue, May 20

SEA

Seattle

DEN

Denver

$164 Roundtrip, found 2 days ago

$164

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, May 15 from Seattle to Denver, returning Tue, May 20, priced at $164 found 2 days ago

Wed, May 14 - Fri, May 16

SEA

Seattle

DEN

Denver

$175 Roundtrip, found 2 days ago

$175

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, May 14 from Seattle to Denver, returning Fri, May 16, priced at $175 found 2 days ago

Mon, Jul 21 - Thu, Jul 24

SEA

Seattle

DEN

Denver

$177 Roundtrip, found 13 hours ago

$177

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Mon, Jul 21 from Seattle to Denver, returning Thu, Jul 24, priced at $177 found 13 hours ago

Sat, May 17 - Mon, May 19

SEA

Seattle

DEN

Denver

$181 Roundtrip, found 2 days ago

$181

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, May 17 from Seattle to Denver, returning Mon, May 19, priced at $181 found 2 days ago