$308 Cheap American Airlines flights Denver (DEN) to Seattle (SEA)

View $308 flight on Thu, Jan 1, 2026Opens in a new window

$308 Cheap American Airlines flights Denver (DEN) to Seattle (SEA)

Prices were available within the past 7 days and start at $308 for one-way flights and $566 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jan 1 - Sun, Jan 4
DEN
Denver
SEA
Seattle
$566 Roundtrip, found 2 days ago
$566
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Jan 1 from Denver to Seattle, returning Sun, Jan 4, priced at $566 found 2 days ago

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

February is typically the cheapest month to fly

From $58 - $143 per traveler.
Flights from Denver (DEN) to Seattle (SEA)
Origin airport
Denver Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
1635 km
Average flight time
2 hours 3 mins