$119 Cheap Alaska Airlines flights Denver (DEN) to Seattle (SEA)

View $119 flight on Thu, Apr 23, 2026Opens in a new window

$119 Cheap Alaska Airlines flights Denver (DEN) to Seattle (SEA)

Prices were available within the past 7 days and start at $119 for one-way flights and $262 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Apr 21 - Thu, Apr 23
DEN
Denver
SEA
Seattle
$262 Roundtrip, found 5 hours ago
$262
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Apr 21 from Denver to Seattle, returning Thu, Apr 23, priced at $262 found 5 hours ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $154
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $154

Find the cheapest month to fly from Denver (DEN) to Seattle (SEA)

January is typically the cheapest month to fly

From $54 - $172 per traveler.

Travel information

Origin airport
Denver Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
1635 km
Average flight time
1 hour 57 mins

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