Flights from Seattle to Windsor

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.

Tue, May 20 - Wed, May 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$144 Roundtrip, found 6 days ago

$144

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, May 20 from Seattle - Tacoma Intl. to Denver Intl., returning Wed, May 28, priced at $144 found 6 days ago

Sun, May 25 - Wed, May 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$164 Roundtrip, found 6 days ago

$164

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, May 25 from Seattle - Tacoma Intl. to Denver Intl., returning Wed, May 28, priced at $164 found 6 days ago

Mon, May 26 - Wed, May 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$165 Roundtrip, found 6 days ago

$165

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, May 26 from Seattle - Tacoma Intl. to Denver Intl., returning Wed, May 28, priced at $165 found 6 days ago

Tue, May 20 - Tue, May 27

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$175 Roundtrip, found 6 days ago

$175

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, May 20 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, May 27, priced at $175 found 6 days ago

Thu, May 22 - Wed, May 28

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$185 Roundtrip, found 6 days ago

$185

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, May 22 from Seattle - Tacoma Intl. to Denver Intl., returning Wed, May 28, priced at $185 found 6 days ago

Sun, May 25 - Tue, May 27

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$195 Roundtrip, found 6 days ago

$195

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, May 25 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, May 27, priced at $195 found 6 days ago

Mon, May 26 - Tue, May 27

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$196 Roundtrip, found 6 days ago

$196

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, May 26 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, May 27, priced at $196 found 6 days ago

Tue, May 20 - Mon, May 26

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$205 Roundtrip, found 6 days ago

$205

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, May 20 from Seattle - Tacoma Intl. to Denver Intl., returning Mon, May 26, priced at $205 found 6 days ago

Fri, May 23 - Tue, May 27

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$206 Roundtrip, found 6 days ago

$206

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, May 23 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, May 27, priced at $206 found 6 days ago

Thu, May 22 - Tue, May 27

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$216 Roundtrip, found 6 days ago

$216

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, May 22 from Seattle - Tacoma Intl. to Denver Intl., returning Tue, May 27, priced at $216 found 6 days ago

Sun, May 25 - Mon, May 26

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$225 Roundtrip, found 6 days ago

$225

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, May 25 from Seattle - Tacoma Intl. to Denver Intl., returning Mon, May 26, priced at $225 found 6 days ago

Mon, May 26 - Mon, May 26

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$226 Roundtrip, found 6 days ago

$226

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, May 26 from Seattle - Tacoma Intl. to Denver Intl., returning Mon, May 26, priced at $226 found 6 days ago

Fri, May 23 - Mon, May 26

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$236 Roundtrip, found 6 days ago

$236

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, May 23 from Seattle - Tacoma Intl. to Denver Intl., returning Mon, May 26, priced at $236 found 6 days ago

Thu, May 22 - Mon, May 26

SEA

Seattle - Tacoma Intl.

DEN

Denver Intl.

$246 Roundtrip, found 6 days ago

$246

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, May 22 from Seattle - Tacoma Intl. to Denver Intl., returning Mon, May 26, priced at $246 found 6 days ago