$34 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

$34 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)

Prices were available within the past 7 days and start at $34 for one-way flights and $302 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jan 5 - Thu, Jan 8

DEN

Denver

SEA

Seattle

$302 Roundtrip, found 21 hours ago

$302

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Mon, Jan 5 from Denver to Seattle, returning Thu, Jan 8, priced at $302 found 21 hours ago

Fri, Jan 2 - Thu, Jan 8

DEN

Denver

SEA

Seattle

$304 Roundtrip, found 21 hours ago

$304

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Fri, Jan 2 from Denver to Seattle, returning Thu, Jan 8, priced at $304 found 21 hours ago

Mon, Jan 5 - Tue, Jan 6

DEN

Denver

SEA

Seattle

$322 Roundtrip, found 21 hours ago

$322

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Mon, Jan 5 from Denver to Seattle, returning Tue, Jan 6, priced at $322 found 21 hours ago

Fri, Jan 2 - Tue, Jan 6

DEN

Denver

SEA

Seattle

$324 Roundtrip, found 21 hours ago

$324

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Fri, Jan 2 from Denver to Seattle, returning Tue, Jan 6, priced at $324 found 21 hours ago

Sat, Jan 3 - Thu, Jan 8

DEN

Denver

SEA

Seattle

$325 Roundtrip, found 21 hours ago

$325

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sat, Jan 3 from Denver to Seattle, returning Thu, Jan 8, priced at $325 found 21 hours ago

Sun, Jan 4 - Thu, Jan 8

DEN

Denver

SEA

Seattle

$328 Roundtrip, found 21 hours ago

$328

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sun, Jan 4 from Denver to Seattle, returning Thu, Jan 8, priced at $328 found 21 hours ago

Fri, Jan 2 - Sat, Jan 3

DEN

Denver

SEA

Seattle

$344 Roundtrip, found 21 hours ago

$344

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Fri, Jan 2 from Denver to Seattle, returning Sat, Jan 3, priced at $344 found 21 hours ago

Sat, Jan 3 - Tue, Jan 6

DEN

Denver

SEA

Seattle

$345 Roundtrip, found 21 hours ago

$345

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sat, Jan 3 from Denver to Seattle, returning Tue, Jan 6, priced at $345 found 21 hours ago

Sun, Jan 4 - Tue, Jan 6

DEN

Denver

SEA

Seattle

$348 Roundtrip, found 21 hours ago

$348

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sun, Jan 4 from Denver to Seattle, returning Tue, Jan 6, priced at $348 found 21 hours ago

Sat, Jan 3 - Mon, Jan 5

DEN

Denver

SEA

Seattle

$355 Roundtrip, found 21 hours ago

$355

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sat, Jan 3 from Denver to Seattle, returning Mon, Jan 5, priced at $355 found 21 hours ago

Sun, Jan 4 - Mon, Jan 5

DEN

Denver

SEA

Seattle

$358 Roundtrip, found 21 hours ago

$358

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sun, Jan 4 from Denver to Seattle, returning Mon, Jan 5, priced at $358 found 21 hours ago