How long is the Denver to Seattle flight time?

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS309

    Alaska Airlines

    5:34 PM

    DEN

    3.0h

    Nonstop

    7:34 PM

    SEA

    S M T W T - S
    Search

  2. F91175

    Frontier Airlines

    1:04 PM

    DEN

    3.1h

    Nonstop

    3:12 PM

    SEA

    S M T W T F S
    Search

  3. AS615

    Alaska Airlines

    7:08 PM

    DEN

    3.0h

    Nonstop

    9:08 PM

    SEA

    S M T W T F S
    Search

  4. F94545

    Frontier Airlines

    7:45 AM

    DEN

    3.1h

    Nonstop

    9:51 AM

    SEA

    S M T W T F S
    Search

  5. DL2543

    Delta Air Lines

    6:43 PM

    DEN

    3.0h

    Nonstop

    8:45 PM

    SEA

    S M T W T F S
    Search

  6. F94345

    Frontier Airlines

    10:55 PM

    DEN

    2.5h

    Nonstop

    12:23 AM

    LAX

    S M T W T F S
    Search

  7. F91177

    Frontier Airlines

    3:41 PM

    LAX

    3.2h

    Nonstop

    6:54 PM

    SEA

    S M T W T F S
    Search

  8. F91261

    Frontier Airlines

    10:29 PM

    DEN

    2.4h

    Nonstop

    11:51 PM

    ONT

    S M T W T F S
    Search

  9. F92275

    Frontier Airlines

    5:06 PM

    ONT

    3.0h

    Nonstop

    8:08 PM

    SEA

    - M T W - F S
    Search
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Info of Denver to Seattle Flight Time & Flight Schedules

Flight Time 3 hours 20 minutes
Earliest Flight  05:30⇒07:33
Latest Flight 21:30⇒23:29
Cheapest Flight Price HK$289

Find Cheap Flights with Best Denver to Seattle Flight Time

  • One way
  • Round-trip
      • direct cheapest
        DEN2:20 PM
        2h 58m
        Nonstop
        SEA4:18 PM
        Denver - Seattle|Sat, Sep 5|Delta Air Lines
        HK$668
        HK$2,262
        70% off
        Search
        70% off
        HK$2,262
        HK$668
      • DEN7:30 PM
        3h
        Nonstop
        SEA9:30 PM
        Denver - Seattle|Mon, Sep 14|Alaska Airlines
        HK$767
        HK$2,262
        66% off
        Search
        66% off
        HK$2,262
        HK$767
      • DEN3:04 PM
        2h 56m
        Nonstop
        SEA5:00 PM
        Denver - Seattle|Sat, Sep 12|Alaska Airlines
        HK$995
        HK$2,262
        56% off
        Search
        56% off
        HK$2,262
        HK$995
      • DEN7:30 PM
        3h
        Nonstop
        SEA9:30 PM
        Denver - Seattle|Fri, Sep 4|Alaska Airlines
        HK$997
        Search
        HK$997
      • DEN5:41 PM
        3h
        Nonstop
        SEA7:41 PM
        Denver - Seattle|Tue, Sep 15|Alaska Airlines
        HK$1,020
        Search
        HK$1,020
      • DEN6:28 PM
        3h 12m
        Nonstop
        SEA8:40 PM
        Denver - Seattle|Mon, Sep 14|Delta Air Lines
        HK$1,109
        Search
        HK$1,109
      • DEN7:08 PM
        3h
        Nonstop
        SEA9:08 PM
        Denver - Seattle|Tue, Sep 8|Alaska Airlines
        HK$1,139
        Search
        HK$1,139
      • DEN7:30 PM
        3h 1m
        Nonstop
        SEA9:31 PM
        Denver - Seattle|Sat, Sep 12|United Airlines
        HK$1,358
        Search
        HK$1,358
      • DEN9:58 AM
        2h 59m
        Nonstop
        SEA11:57 AM
        Denver - Seattle|Tue, Sep 15|United Airlines
        HK$1,396
        Search
        HK$1,396
      • DEN6:43 PM
        3h 2m
        Nonstop
        SEA8:45 PM
        Denver - Seattle|Tue, Sep 1|Delta Air Lines
        HK$1,469
        Search
        HK$1,469
      • DEN9:45 AM
        2h 59m
        Nonstop
        SEA11:44 AM
        Denver - Seattle|Tue, Sep 1|United Airlines
        HK$1,809
        Search
        HK$1,809
      • DEN11:34 AM
        6h 18m
        1 stops
        SEA4:52 PM
        Denver - Seattle|Tue, Sep 1|American Airlines
        HK$1,525
        Search
        HK$1,525
      • DEN13:00
        6h 18m
        Nonstop
        SEA14:00
        Denver - Seattle|Mon, Sep 6|Normal Airline
        Find more flights
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Denver to Seattle Flight Time of Top Airlines

Frontier Airlines
Frontier Airlines
10.0
Alaska Airlines
Alaska Airlines
9.4
Delta Air Lines
Delta Air Lines
8.3
United Airlines
United Airlines
8.1

FAQ of Denver to Seattle Flight Time

  • Which airlines offer direct flights from Denver to Seattle?

    At the moment, you can catch a nonstop flight from Denver to Seattle with the following airlines, including: Frontier Airlines Alaska Airlines Delta Air Lines United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

  • How long does it take to fly from Denver (DEN) to Seattle (SEA) and what is the distance?

    It takes around 3 hours 2 minutes to fly from Denver (DEN) to Seattle (SEA).

  • When is the best time to book flights from Denver to Seattle?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Denver to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

  • How many flights are there per week from Denver to Seattle?

    Based on Trip.com data in the past 4 weeks, there is 79 flight per week flying from Denver to Seattle. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS317 (08:51) Alaska Airlines: -/-/-/-/-/-/- -- AS643 (06:08)

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

    The cheapest months to fly from Denver to Seattle is October, when demand for travel is lower.

  • Which upcoming date is cheapest to fly from Denver to Seattle on?

    After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Denver to Seattle on August 25, 2026 with Frontier Airlines, with prices starting at HK$226.

  • Which airports can I fly to for Seattle from Denver?

    You can land at any one of the following hubs in Seattle, with Denver International Airport to Seattle-Tacoma International Airport (DEN-SEA) is by far the most common option on this route: Seattle-Tacoma International Airport (SEA) King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE).

  • Is there any time difference between Denver and Seattle?

    The time difference between Seattle and Denver is 1h.

  • How do I change or cancel my ticket from Denver to Seattle?

    Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.