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Denver International Airport to Seattle Tacoma Intl. Airport flight

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

      • Cheapest nonstop
        DEN 7:15 AM
        3h 4m
        Nonstop
        SEA 9:19 AM
        Denver - Seattle | Mon, Aug 24 | Frontier Airlines
        SEA 2:37 PM
        2h 56m
        Nonstop
        DEN 6:33 PM
        Seattle - Denver | Thu, Aug 27 | Frontier Airlines
        €51 €178
        71% off
        71% off
        €178 €51
      • DEN 7:15 AM
        3h 4m
        Nonstop
        SEA 9:19 AM
        Denver - Seattle | Wed, Sep 2 | Frontier Airlines
        SEA 7:06 PM
        2h 52m
        Nonstop
        DEN 10:58 PM
        Seattle - Denver | Tue, Sep 8 | Frontier Airlines
        €70 €178
        61% off
        61% off
        €178 €70
      • DEN 7:30 PM
        3h
        Nonstop
        SEA 9:30 PM
        Denver - Seattle | Mon, Aug 24 | Alaska Airlines
        SEA 7:06 PM
        2h 52m
        Nonstop
        DEN 10:58 PM
        Seattle - Denver | Thu, Aug 27 | Frontier Airlines
        €89 €178
        50% off
        50% off
        €178 €89
      • DEN 6:20 AM
        2h 59m
        Nonstop
        SEA 8:19 AM
        Denver - Seattle | Mon, Aug 24 | Delta Air Lines
        SEA 2:37 PM
        2h 56m
        Nonstop
        DEN 6:33 PM
        Seattle - Denver | Thu, Aug 27 | Frontier Airlines
        €92
        48% off
        €178 €92
      • DEN 9:13 AM
        3h 7m
        Nonstop
        SEA 11:20 AM
        Denver - Seattle | Wed, Jul 29 | Frontier Airlines
        SEA 7:06 PM
        2h 52m
        Nonstop
        DEN 10:58 PM
        Seattle - Denver | Wed, Aug 5 | Frontier Airlines
        €114
        36% off
        €178 €114
      • DEN 5:34 PM
        3h
        Nonstop
        SEA 7:34 PM
        Denver - Seattle | Wed, Sep 2 | Alaska Airlines
        SEA 7:54 PM
        2h 53m
        Nonstop
        DEN 11:47 PM
        Seattle - Denver | Tue, Sep 8 | Delta Air Lines
        €131
        26% off
        €178 €131
      • DEN 7:15 AM
        3h 4m
        Nonstop
        SEA 9:19 AM
        Denver - Seattle | Tue, Aug 18 | Frontier Airlines
        SEA 2:37 PM
        2h 56m
        Nonstop
        DEN 6:33 PM
        Seattle - Denver | Thu, Aug 20 | Frontier Airlines
        €132
        26% off
        €178 €132
      • DEN 6:20 AM
        2h 59m
        Nonstop
        SEA 8:19 AM
        Denver - Seattle | Wed, Sep 2 | Delta Air Lines
        SEA 8:55 AM
        2h 50m
        Nonstop
        DEN 12:45 PM
        Seattle - Denver | Tue, Sep 8 | Delta Air Lines
        €132
        26% off
        €178 €132
      • DEN 9:03 PM
        3h 1m
        Nonstop
        SEA 11:04 PM
        Denver - Seattle | Wed, Sep 2 | United Airlines
        SEA 5:00 AM
        2h 45m
        Nonstop
        DEN 8:45 AM
        Seattle - Denver | Tue, Sep 8 | United Airlines
        €135
        24% off
        €178 €135
      • DEN 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Denver - Seattle | Mon, Jul 13 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        DEN 4:00 PM
        Seattle - Denver | Wed, Jul 15 | Normal Airline
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      • Cheapest nonstop
        DEN 7:15 AM
        3h 4m
        Nonstop
        SEA 9:19 AM
        Denver - Seattle | Wed, Aug 19 | Frontier Airlines
        €17 €73
        77% off
        77% off
        €73 €17
      • DEN 7:15 AM
        3h 4m
        Nonstop
        SEA 9:19 AM
        Denver - Seattle | Thu, Aug 20 | Frontier Airlines
        €25 €73
        66% off
        66% off
        €73 €25
      • DEN 7:00 AM
        3h 4m
        Nonstop
        SEA 9:04 AM
        Denver - Seattle | Sun, Aug 9 | Frontier Airlines
        €26 €73
        64% off
        64% off
        €73 €26
      • DEN 7:00 AM
        3h 4m
        Nonstop
        SEA 9:04 AM
        Denver - Seattle | Fri, Aug 14 | Frontier Airlines
        €42
        42% off
        €73 €42
      • DEN 7:00 AM
        3h 4m
        Nonstop
        SEA 9:04 AM
        Denver - Seattle | Thu, Aug 13 | Frontier Airlines
        €53
        27% off
        €73 €53
      • DEN 6:02 AM
        3h 3m
        Nonstop
        SEA 8:05 AM
        Denver - Seattle | Wed, Aug 19 | Alaska Airlines
        €53
        27% off
        €73 €53
      • DEN 7:30 PM
        3h
        Nonstop
        SEA 9:30 PM
        Denver - Seattle | Fri, Aug 28 | Alaska Airlines
        €53
        27% off
        €73 €53
      • DEN 7:15 AM
        3h 4m
        Nonstop
        SEA 9:19 AM
        Denver - Seattle | Wed, Sep 9 | Frontier Airlines
        €54
        26% off
        €73 €54
      • DEN 6:43 PM
        3h 2m
        Nonstop
        SEA 8:45 PM
        Denver - Seattle | Fri, Aug 28 | Delta Air Lines
        €55
        25% off
        €73 €55
      • DEN 6:43 PM
        3h 2m
        Nonstop
        SEA 8:45 PM
        Denver - Seattle | Wed, Aug 19 | Delta Air Lines
        €55
        25% off
        €73 €55
      • DEN 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Denver - Seattle | Mon, Jul 13 | Normal Airline
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Displayed flight fares from Denver International Airport to Seattle Tacoma Intl. Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Denver International Airport to Seattle Tacoma Intl. Airport

What is the cheapest month for one-way flights from Denver International Airport to Seattle Tacoma Intl. Airport?

Data is based on average one-way flight prices from Denver International Airport to Seattle Tacoma Intl. Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Denver International Airport to Seattle Tacoma Intl. Airport, the best time to buy is in April, with an average price of €105. You’ll want to avoid June, when the average price can reach as high as €165.

€165
€135
€105
€75
    Cheapest
  • €136
    Jul
  • €112
    Aug
  • €138
    Sep
  • €119
    Oct
  • €115
    Nov
  • €129
    Dec
  • €117
    Jan
  • €124
    Feb
  • €129
    Mar
  • €105
    Apr
  • €139
    May
  • €165
    Jun

What is the cheapest day of the week to fly from Denver International Airport to Seattle Tacoma Intl. Airport?

The data is based on the past 12 months and shows the average ticket prices from Denver International Airport to Seattle Tacoma Intl. Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Denver International Airport to Seattle Tacoma Intl. Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Sunday, as ticket prices are usually the highest that day.

€149
€123
€96
€70
  • €129
    Mon
  • €96
    Tue
  • €104
    Wed
  • €130
    Thu
  • €134
    Fri
  • €135
    Sat
  • €149
    Sun

Selected Airlines from Denver International Airport to Seattle Tacoma Intl. 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 €17
Alaska Airlines
From €53
Delta Air Lines
From €55
United Airlines
From €68
American Airlines
From €69
Hahn Air
From €121
Sun Country Airlines
From €201
Qatar Airways
From €333

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Flight Schedule from Denver International Airport to Seattle Tacoma Intl. 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. DL1731

    Denver International Airport

    6:45 AM

    DEN

    3h 14m

    8:59 AM

    SEA

    S M T W T F S
    Search

  2. AS615

    Denver International Airport

    7:13 PM

    DEN

    3h

    9:13 PM

    SEA

    - - - - - F -
    Search

  3. UA1482

    Denver International Airport

    6:00 AM

    DEN

    3h

    8:00 AM

    SEA

    S M T W T F S
    Search

  4. DL2543

    Denver International Airport

    6:39 PM

    DEN

    3h 2m

    8:41 PM

    SEA

    S M T W T F S
    Search

  5. AS643

    Denver International Airport

    6:02 AM

    DEN

    3h 3m

    8:05 AM

    SEA

    S M T W T F S
    Search

  6. F94545

    Denver International Airport

    1:55 PM

    DEN

    3h 11m

    4:06 PM

    SEA

    S M T W T F S
    Search

  7. F91175

    Denver International Airport

    11:05 AM

    DEN

    3h 17m

    1:22 PM

    SEA

    S M T W T F S
    Search
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Denver International Airport to Seattle Tacoma Intl. Airport Flights Info

Flight distance 1,646.85 km
Cheapest one-way ticket price €17
Cheapest return ticket price €51

FAQs for Denver International Airport to Seattle Tacoma Intl. Airport Flights

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

    It takes around 3 hours 15 minutes to fly from Denver International Airport (den) to Seattle Tacoma Intl. Airport (sea).
  • There are around 18 daily flights from Denver International Airport (DEN) to Seattle Tacoma Intl. Airport (SEA).
  • Tickets cost around €72 in September, making it the cheapest month to book. Denver International Airport (DEN) to Seattle Tacoma Intl. Airport (SEA) is a popular route, so don't forget to book your tickets in advance.
  • The route from Denver International Airport (DEN) to Seattle Tacoma Intl. Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around €183 in July, the most expensive month to book this route.
  • The earliest flight departs from Denver International Airport (DEN) at 05:30 and arrives in Seattle Tacoma Intl. Airport (SEA) at 07:33.
  • The latest flight departs from Denver International Airport (DEN) at 21:30 and arrives in Seattle Tacoma Intl. Airport (SEA) at 23:29.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • Frontier Airlines is a very popular airline operating an average of 4518 flights per month.

Popular Destinations

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
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.
Cancellation/change due to a flight schedule change:
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.