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Cheapest flights for Denver – Seattle (DEN – SEA)

Aviasales.ge will find you the cheapest airfare for Denver – Seattle by comparing the ticket prices to Seattle using 45 agencies, five booking systems, and 728 airlines. Where exactly you buy your tickets for Denver – Seattle is up to you.

Direct flight for from Denver to Seattle

The easiest way to to get to your destination is a direct flight. Direct flights for from Denver to Seattle are offered by:

  • Delta Air Lines (daily DL2740)
  • United Airlines (daily UA299)
  • Hawaiian Airlines (6 days per week, flight HA4820)
  • Frontier Airlines (4 days per week, flight F91175)
  • Southwest Airlines (4 days per week, flight WN981)
  • Alaska Airlines (3 days per week, flight AS615)

Seattle is served by 2 airports: Seattle-Tacoma International Airport and Boeing Field International Airport. Direct flights for Denver – Seattle are operated by:
  • Delta Air Lines, United Airlines, Southwest Airlines, Frontier Airlines, Alaska Airlines from Denver International Airport to Seattle-Tacoma International Airport
Flight with layover for the route from Denver to Seattle

A flight with a layover on the route Denver – Seattle will allow you to make your trip more interesting. The layover could be in:

  • Las Vegas (flight UA604 United Airlines)
  • Sacramento (flight WN2634 Southwest Airlines)
  • Portland (flight UA2000 United Airlines)

This is a great chance to get to know these cities. Layovers are usually at least six hours.

Please keep in mind that depending on the number of days remaining until your departure, ticket prices for Denver – Seattle could change by more than 85%.

Aviasales.ge suggests buying tickets for Denver – Seattle in advance in order to choose the conditions for your flight that best suit your preferences and budget.

General information on flight Denver – Seattle (DEN – SEA)
1,641 km
Distance
1 ⁠hr
Current time difference
141
Number of flights per week
₾94
Lowest price
Average ticket price
05:15
Earliest flight out
22:37
Latest flight out

Ticket prices for Denver – Seattle by month *

Month One-way Round-trip
June 2025 01.06.2025
12.06 - 14.06.2025

* Prices found by users over the last 48 hours (they do not represent an offer).

Cheapest flight for from Denver to Seattle found by our users over the last 48 hours: ticket with Alaska Airlines with a departure on 12.06.2025 and a price of 1 048 GEL.
Fastest flight for from Denver to Seattle: ticket with Alaska Airlines with the nearest departure on 23.04.2025 and a flight duration of 3hrs. 0min..
Airlines flying from Denver to Seattle
Airports serving Denver – Seattle

Denver airports serving flights to Seattle:

  • Denver International Airport (DEN)

Seattle airports accepting flights from Denver:

  • Seattle-Tacoma International Airport (SEA)