Flights from Seattle to Denver

Cheapest flights from Seattle

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 3 - Sun, Sep 7

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$126 Roundtrip, found 6 days ago

$126

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Wed, Sep 3 from Seattle - Tacoma Intl. to Denver Intl., returning Sun, Sep 7, priced at $126 found 6 days ago

Sun, Aug 31 - Sun, Sep 7

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$132 Roundtrip, found 6 days ago

$132

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Seattle - Tacoma Intl. to Denver Intl., returning Sun, Sep 7, priced at $132 found 6 days ago

Wed, Sep 3 - Thu, Sep 11

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$135 Roundtrip, found 6 days ago

$135

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Wed, Sep 3 from Seattle - Tacoma Intl. to Denver Intl., returning Thu, Sep 11, priced at $135 found 6 days ago

Sun, Aug 31 - Thu, Sep 11

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$141 Roundtrip, found 6 days ago

$141

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Seattle - Tacoma Intl. to Denver Intl., returning Thu, Sep 11, priced at $141 found 6 days ago

Tue, Oct 21 - Sat, Oct 25

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$141 Roundtrip, found 1 hour ago

$141

Roundtrip

found 1 hour ago

Select Delta flight, departing Tue, Oct 21 from Seattle - Tacoma Intl. to Denver Intl., returning Sat, Oct 25, priced at $141 found 1 hour ago

Fri, Oct 24 - Tue, Oct 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$156 Roundtrip, found 1 hour ago

$156

Roundtrip

found 1 hour ago

Select United flight, departing Fri, Oct 24 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Oct 28, priced at $156 found 1 hour ago

Tue, Sep 30 - Tue, Oct 7

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$157 Roundtrip, found 2 days ago

$157

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Tue, Sep 30 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Oct 7, priced at $157 found 2 days ago

Tue, Sep 23 - Sat, Sep 27

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$157 Roundtrip, found 3 hours ago

$157

Roundtrip

found 3 hours ago

Select Alaska Airlines flight, departing Tue, Sep 23 from Seattle - Tacoma Intl. to Denver Intl., returning Sat, Sep 27, priced at $157 found 3 hours ago

Tue, Sep 23 - Thu, Sep 25

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$165 Roundtrip, found 3 hours ago

$165

Roundtrip

found 3 hours ago

Select Alaska Airlines flight, departing Tue, Sep 23 from Seattle - Tacoma Intl. to Denver Intl., returning Thu, Sep 25, priced at $165 found 3 hours ago

Fri, Oct 24 - Tue, Oct 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$166 Roundtrip, found 1 hour ago

$166

Roundtrip

found 1 hour ago

Select United flight, departing Fri, Oct 24 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Oct 28, priced at $166 found 1 hour ago

Fri, Oct 24 - Tue, Oct 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$167 Roundtrip, found 1 hour ago

$167

Roundtrip

found 1 hour ago

Select Delta flight, departing Fri, Oct 24 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Oct 28, priced at $167 found 1 hour ago

Tue, Sep 2 - Tue, Sep 9

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$168 Roundtrip, found 6 days ago

$168

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Sep 2 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Sep 9, priced at $168 found 6 days ago

Mon, Sep 1 - Tue, Sep 9

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$170 Roundtrip, found 6 days ago

$170

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Sep 1 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Sep 9, priced at $170 found 6 days ago

Fri, Oct 24 - Tue, Oct 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$171 Roundtrip, found 1 hour ago

$171

Roundtrip

found 1 hour ago

Select United flight, departing Fri, Oct 24 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Oct 28, priced at $171 found 1 hour ago

Sun, Oct 26 - Fri, Oct 31

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$173 Roundtrip, found 1 hour ago

$173

Roundtrip

found 1 hour ago

Select Hawaiian Airlines flight, departing Sun, Oct 26 from Seattle - Tacoma Intl. to Denver Intl., returning Fri, Oct 31, priced at $173 found 1 hour ago

Tue, Sep 2 - Wed, Sep 10

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$175 Roundtrip, found 6 days ago

$175

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Tue, Sep 2 from Seattle - Tacoma Intl. to Denver Intl., returning Wed, Sep 10, priced at $175 found 6 days ago

Wed, Sep 3 - Tue, Sep 9

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$177 Roundtrip, found 1 day ago

$177

Roundtrip

found 1 day ago

Select United flight, departing Wed, Sep 3 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Sep 9, priced at $177 found 1 day ago

Sun, Sep 21 - Mon, Sep 22

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$180 Roundtrip, found 3 hours ago

$180

Roundtrip

found 3 hours ago

Select United flight, departing Sun, Sep 21 from Seattle - Tacoma Intl. to Denver Intl., returning Mon, Sep 22, priced at $180 found 3 hours ago

Wed, Sep 3 - Tue, Sep 9

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$187 Roundtrip, found 1 day ago

$187

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 3 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, Sep 9, priced at $187 found 1 day ago

Fri, Aug 8 - Mon, Aug 11

PAE

Seattle Paine Field Intl. Airport

DEN

Denver Intl.

$248 Roundtrip, found 1 day ago

$248

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Seattle Paine Field Intl. Airport to Denver Intl., returning Mon, Aug 11, priced at $248 found 1 day ago