Denver to Seattle Flights (DEN-SEA) from $34

Selected fares from Denver to Seattle

The cheapest prices found with in the last 7 days for return flights were $68 and $34 for one-way flights to Seattle for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 21 - Wed, Aug 28

DEN

Denver Intl.

SEA

Seattle - Tacoma Intl.

$68 Roundtrip, found 2 hours ago

$68

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Wed, Aug 21 from Denver Intl. to Seattle - Tacoma Intl., returning Wed, Aug 28, priced at $68 found 2 hours ago

Wed, Jun 12 - Wed, Jun 12

DEN

Denver Intl.

SEA

Seattle - Tacoma Intl.

$149 Roundtrip, found 2 days ago

$149

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Wed, Jun 12 from Denver Intl. to Seattle - Tacoma Intl., returning Wed, Jun 12, priced at $149 found 2 days ago

Fri, May 24 - Mon, May 27

DEN

Denver Intl.

SEA

Seattle - Tacoma Intl.

$166 Roundtrip, just found

$166

Roundtrip

just found

Select Sun Country Airlines flight, departing Fri, May 24 from Denver Intl. to Seattle - Tacoma Intl., returning Mon, May 27, priced at $166 just found