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Denver International Airport to Seattle-Tacoma International Airport flight
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Cheap Flights from Denver International Airport to Seattle-Tacoma International Airport

Search for flights from Denver to Seattle and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • DEN05:01
        3h 3m
        Direct
        SEA07:04
        Denver - Seattle|Wed, May 22|Frontier Airlines
        $32$52
        38% OFF
        38% OFF
        $52$32
      • DEN14:49
        3h 9m
        Direct
        SEA16:58
        Denver - Seattle|Wed, May 8|Frontier Airlines
        $35$52
        32% OFF
        32% OFF
        $52$35
      • DEN06:36
        3h 5m
        Direct
        SEA08:41
        Denver - Seattle|Tue, Jun 11|Frontier Airlines
        $36$52
        31% OFF
        31% OFF
        $52$36
      • DEN17:12
        3h 2m
        Direct
        SEA19:14
        Denver - Seattle|Tue, Jun 4|Frontier Airlines
        $36
        $36
      • DEN05:20
        2h 59m
        Direct
        SEA07:19
        Denver - Seattle|Wed, Jun 19|Frontier Airlines
        $36
        $36
      • DEN18:47
        3h 4m
        Direct
        SEA20:51
        Denver - Seattle|Wed, Jun 5|Frontier Airlines
        $38
        $38
      • DEN06:25
        3h 5m
        Direct
        SEA08:30
        Denver - Seattle|Thu, May 16|Frontier Airlines
        $39
        $39
      • DEN06:36
        3h 5m
        Direct
        SEA08:41
        Denver - Seattle|Tue, Jun 18|Frontier Airlines
        $40
        $40
      • DEN05:20
        2h 59m
        Direct
        SEA07:19
        Denver - Seattle|Wed, Jun 12|Frontier Airlines
        $40
        $40
      • DEN05:01
        3h 3m
        Direct
        SEA07:04
        Denver - Seattle|Sun, May 19|Frontier Airlines
        $40
        $40
      • DEN13:00
        3h 5m
        Direct
        SEA14:00
        Denver - Seattle|Sat, May 4|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Denver International Airport to Seattle-Tacoma International Airport

See which airlines fly from Denver to Seattle. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Frontier Airlines
From $32
Sun Country Airlines
From $47
Alaska Airlines
From $54
American Airlines
From $80
Southwest Airlines
From $104
United Airlines
From $148
Delta Air Lines
From $148
ANA airlines
Find more flights and airlines
Flight Schedule from Denver International Airport to Seattle-Tacoma International Airport

Check the schedule for flights from Denver to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS643

    Alaska Airlines

    06:00

    DEN

    3.0h

    Direct

    07:58

    SEA

    SMTWTFS
    Search

  2. F91175

    Frontier Airlines

    06:35

    DEN

    3.0h

    Direct

    08:37

    SEA

    S----F-
    Search

  3. F92147

    Frontier Airlines

    11:51

    DEN

    3.2h

    Direct

    14:02

    SEA

    -----F-
    Search

  4. F91815

    Frontier Airlines

    18:25

    DEN

    3.2h

    Direct

    20:35

    SEA

    -M-----
    Search

  5. AS705

    Alaska Airlines

    18:53

    DEN

    3.1h

    Direct

    20:57

    SEA

    SMTWT-S
    Search

  6. F93405

    Frontier Airlines

    19:08

    DEN

    3.0h

    Direct

    21:08

    SEA

    --T----
    Search

  7. F94625

    Frontier Airlines

    19:41

    DEN

    3.1h

    Direct

    21:50

    SEA

    ---W---
    Search

  8. F91607

    Frontier Airlines

    20:00

    DEN

    3.1h

    Direct

    22:09

    SEA

    ----T--
    Search

  9. F93467

    Frontier Airlines

    20:18

    DEN

    1.9h

    21:15

    PHX

    SMTWT-S
    Search

  10. F91311

    Frontier Airlines

    06:00

    PHX

    3.4h

    09:25

    SEA

    SMT-TFS
Find more flights and airlines

Denver International Airport to Seattle-Tacoma International Airport Flights Info

Flight distance1,646.85km
Cheapest one-way ticket price$32
Cheapest return ticket price$56

FAQs for Denver International Airport to Seattle-Tacoma International Airport Flights

  • How long is a flight from Denver International Airport to Seattle-Tacoma International Airport?

    It takes around 3 hours 5 minutes to fly from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA).

  • How many daily flights are there from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA)?

    There are around 16 daily flights from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA).

  • When are flight tickets from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA) the cheapest?

    Tickets cost around $104 in June, making it the cheapest month to book. Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA) is a popular route, so don't forget to book your tickets in advance.

  • When are flight tickets from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA) most expensive?

    The route from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around $148 in April, the most expensive month to book this route.

  • What time does the earliest flight from Denver International Airport to Seattle-Tacoma International Airport depart?

    The earliest flight departs from Denver International Airport (DEN) at 05:01 and arrives in Seattle-Tacoma International Airport (SEA) at 07:04.

  • What time does the latest flight from Denver International Airport to Seattle-Tacoma International Airport depart?

    The latest flight departs from Denver International Airport (DEN) at 21:59 and arrives in Seattle-Tacoma International Airport (SEA) at 23:58.

  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17km. It takes about 30 minutes by taxi.

  • Which airline operates the most direct flights from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA)?

    Alaska Airlines is a very popular airline operating an average of 3614 flights per month.

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