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Denver International Airport to Seattle Tacoma Intl. Airport flight

Explore the cheapest one-way and round-trip flights from Denver International Airport to Seattle Tacoma Intl. Airport over the next 90 days, with one-way fares from MXN532 and round-trip from MXN1,236. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        DEN 1:32 PM
        3h 8m
        Nonstop
        SEA 3:40 PM
        Denver - Seattle | Wed, Dec 2 | Frontier Airlines
        SEA 4:58 PM
        2h 50m
        Nonstop
        DEN 8:48 PM
        Seattle - Denver | Mon, Dec 7 | Frontier Airlines
        MXN1,236 MXN5,012
        75% off
        75% off
        MXN5,012 MXN1,236
      • DEN 6:35 PM
        3h 11m
        Nonstop
        SEA 8:46 PM
        Denver - Seattle | Wed, Dec 2 | Delta Air Lines
        SEA 4:58 PM
        2h 50m
        Nonstop
        DEN 8:48 PM
        Seattle - Denver | Mon, Dec 7 | Frontier Airlines
        MXN2,038 MXN5,012
        59% off
        59% off
        MXN5,012 MXN2,038
      • DEN 3:22 PM
        3h 9m
        Nonstop
        SEA 5:31 PM
        Denver - Seattle | Wed, Dec 2 | Alaska Airlines
        SEA 4:58 PM
        2h 50m
        Nonstop
        DEN 8:48 PM
        Seattle - Denver | Mon, Dec 7 | Frontier Airlines
        MXN2,114 MXN5,012
        57% off
        57% off
        MXN5,012 MXN2,114
      • DEN 6:33 PM
        3h 7m
        Nonstop
        SEA 8:40 PM
        Denver - Seattle | Fri, Nov 13 | Delta Air Lines
        SEA 7:23 AM
        2h 51m
        Nonstop
        DEN 11:14 AM
        Seattle - Denver | Sun, Nov 15 | Alaska Airlines
        MXN2,747
        45% off
        MXN5,012 MXN2,747
      • DEN 3:25 PM
        3h 2m
        Nonstop
        SEA 5:27 PM
        Denver - Seattle | Fri, Nov 13 | Alaska Airlines
        SEA 7:23 AM
        2h 51m
        Nonstop
        DEN 11:14 AM
        Seattle - Denver | Sun, Nov 15 | Alaska Airlines
        MXN2,804
        44% off
        MXN5,012 MXN2,804
      • DEN 1:04 PM
        3h 8m
        Nonstop
        SEA 3:12 PM
        Denver - Seattle | Fri, Nov 13 | Frontier Airlines
        SEA 7:23 AM
        2h 51m
        Nonstop
        DEN 11:14 AM
        Seattle - Denver | Sun, Nov 15 | Alaska Airlines
        MXN3,169
        37% off
        MXN5,012 MXN3,169
      • DEN 1:14 PM
        3h 8m
        Nonstop
        SEA 3:22 PM
        Denver - Seattle | Mon, Nov 23 | Frontier Airlines
        SEA 4:37 PM
        2h 48m
        Nonstop
        DEN 8:25 PM
        Seattle - Denver | Wed, Nov 25 | Frontier Airlines
        MXN3,373
        33% off
        MXN5,012 MXN3,373
      • DEN 1:07 PM
        3h 5m
        Nonstop
        SEA 3:12 PM
        Denver - Seattle | Sat, Oct 17 | Frontier Airlines
        SEA 4:27 PM
        2h 50m
        Nonstop
        DEN 8:17 PM
        Seattle - Denver | Mon, Oct 19 | Frontier Airlines
        MXN3,649
        27% off
        MXN5,012 MXN3,649
      • DEN 12:23 PM
        8h 46m
        1 stop
        SEA 8:09 PM
        Denver - Seattle | Fri, Nov 13 | American Airlines
        SEA 6:23 PM
        5h 17m
        1 stop
        DEN 12:40 AM
        Seattle - Denver | Sun, Nov 15 | American Airlines
        MXN3,153
        37% off
        MXN5,012 MXN3,153
      • DEN 7:27 AM
        6h 35m
        1 stop
        SEA 1:02 PM
        Denver - Seattle | Wed, Dec 2 | American Airlines
        SEA 1:35 PM
        7h 30m
        1 stop
        DEN 10:05 PM
        Seattle - Denver | Mon, Dec 7 | American Airlines
        MXN3,319
        34% off
        MXN5,012 MXN3,319
      • DEN 12:54 PM
        6h 39m
        1 stop
        SEA 6:33 PM
        Denver - Seattle | Sat, Nov 7 | Frontier Airlines
        SEA 7:48 PM
        18h 23m
        1 stop
        DEN 3:11 PM
        Seattle - Denver | Wed, Nov 11 | Frontier Airlines
        MXN3,759
        25% off
        MXN5,012 MXN3,759
      • DEN 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Denver - Seattle | Sat, Oct 10 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        DEN 4:00 PM
        Seattle - Denver | Mon, Oct 12 | Normal Airline
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      • Cheapest nonstop
        DEN 1:14 PM
        3h 8m
        Nonstop
        SEA 3:22 PM
        Denver - Seattle | Tue, Nov 24 | Frontier Airlines
        MXN532 MXN2,216
        76% off
        76% off
        MXN2,216 MXN532
      • DEN 6:00 AM
        3h 12m
        Nonstop
        SEA 8:12 AM
        Denver - Seattle | Tue, Nov 24 | Delta Air Lines
        MXN1,386 MXN2,216
        37% off
        37% off
        MXN2,216 MXN1,386
      • DEN 1:14 PM
        3h 11m
        Nonstop
        SEA 3:25 PM
        Denver - Seattle | Mon, Nov 16 | Delta Air Lines
        MXN1,402 MXN2,216
        37% off
        37% off
        MXN2,216 MXN1,402
      • DEN 1:04 PM
        3h 8m
        Nonstop
        SEA 3:12 PM
        Denver - Seattle | Mon, Nov 16 | Frontier Airlines
        MXN1,590
        28% off
        MXN2,216 MXN1,590
      • DEN 1:04 PM
        3h 8m
        Nonstop
        SEA 3:12 PM
        Denver - Seattle | Fri, Oct 30 | Frontier Airlines
        MXN1,598
        28% off
        MXN2,216 MXN1,598
      • DEN 1:14 PM
        3h 8m
        Nonstop
        SEA 3:22 PM
        Denver - Seattle | Sun, Nov 29 | Frontier Airlines
        MXN1,662
        25% off
        MXN2,216 MXN1,662
      • DEN 9:10 AM
        10h 44m
        1 stop
        SEA 6:54 PM
        Denver - Seattle | Thu, Nov 19 | Frontier Airlines
        MXN1,281
        42% off
        MXN2,216 MXN1,281
      • DEN 10:55 PM
        20h 59m
        1 stop
        SEA 6:54 PM
        Denver - Seattle | Wed, Nov 4 | Frontier Airlines
        MXN1,517
        32% off
        MXN2,216 MXN1,517
      • DEN 10:55 PM
        20h 59m
        1 stop
        SEA 6:54 PM
        Denver - Seattle | Thu, Oct 29 | Frontier Airlines
        MXN1,544
        30% off
        MXN2,216 MXN1,544
      • DEN 10:55 PM
        20h 59m
        1 stop
        SEA 6:54 PM
        Denver - Seattle | Wed, Nov 18 | Frontier Airlines
        MXN1,550
        30% off
        MXN2,216 MXN1,550
      • DEN 12:23 PM
        8h 46m
        1 stop
        SEA 8:09 PM
        Denver - Seattle | Mon, Nov 16 | American Airlines
        MXN1,590
        28% off
        MXN2,216 MXN1,590
      • DEN 1:10 PM
        6h 44m
        1 stop
        SEA 6:54 PM
        Denver - Seattle | Fri, Nov 20 | Frontier Airlines
        MXN1,660
        25% off
        MXN2,216 MXN1,660
      • DEN 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Denver - Seattle | Sat, Oct 10 | 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 MXN2,166. You’ll want to avoid June, when the average price can reach as high as MXN3,419.

MXN3,419
MXN2,793
MXN2,166
MXN1,540
    Cheapest
  • MXN2,385
    Oct
  • MXN2,389
    Nov
  • MXN2,676
    Dec
  • MXN2,417
    Jan
  • MXN2,571
    Feb
  • MXN2,674
    Mar
  • MXN2,166
    Apr
  • MXN2,869
    May
  • MXN3,419
    Jun
  • MXN3,170
    Jul
  • MXN2,806
    Aug
  • MXN3,100
    Sep

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 Wednesday, 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.

MXN3,097
MXN2,599
MXN2,101
MXN1,603
    Cheapest
  • MXN2,625
    Mon
  • MXN2,426
    Tue
  • MXN2,101
    Wed
  • MXN2,840
    Thu
  • MXN3,057
    Fri
  • MXN2,888
    Sat
  • MXN3,097
    Sun

Which airline offers the cheapest flights from Denver International Airport to Seattle Tacoma Intl. Airport?

The cheapest airline flying from Denver International Airport to Seattle Tacoma Intl. Airport is Frontier Airlines (from MXN1,144) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From MXN1,144
Delta Air Lines
From MXN1,402
American Airlines
From MXN1,590
Alaska Airlines
From MXN1,687
United Airlines
From MXN2,183
Hahn Air
From MXN3,056
Sun Country Airlines
From MXN3,714

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What is the 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. F91175

    Denver International Airport

    1:07 PM

    DEN

    3h 5m

    3:12 PM

    SEA

    S M T W T F S
    Search

  2. AS317

    Denver International Airport

    7:07 AM

    DEN

    3h 3m

    9:10 AM

    SEA

    S M T W T F S
    Search

  3. DL1731

    Denver International Airport

    6:45 AM

    DEN

    3h 14m

    8:59 AM

    SEA

    S M T W T F S
    Search

  4. F92341

    Denver International Airport

    12:54 PM

    DEN

    2h 35m

    Nonstop

    2:29 PM

    LAX

    S M T W T F S
    Search

  5. F91177

    Los Angeles Intl. Airport

    5:38 PM

    LAX

    3h

    Nonstop

    8:38 PM

    SEA

    S M T W T F S

  6. DL1553

    Denver International Airport

    12:45 PM

    DEN

    1h 33m

    Nonstop

    2:18 PM

    SLC

    S M T W T F S
    Search

  7. DL871

    Salt Lake City International Airport

    5:10 PM

    SLC

    2h 20m

    Nonstop

    6:30 PM

    SEA

    S M T W T F S

  8. F93155

    Denver International Airport

    9:10 AM

    DEN

    2h 37m

    Nonstop

    10:47 AM

    LAX

    S M T W T F S
    Search

  9. F91177

    Los Angeles Intl. Airport

    5:38 PM

    LAX

    3h

    Nonstop

    8:38 PM

    SEA

    S M T W T F S

  10. F94345

    Denver International Airport

    10:58 PM

    DEN

    2h 26m

    Nonstop

    12:24 AM

    LAX

    S - - - - - -
    Search

  11. F91177

    Los Angeles Intl. Airport

    5:38 PM

    LAX

    3h

    Nonstop

    8:38 PM

    SEA

    S M T W T F S

  12. F94339

    Denver International Airport

    10:29 PM

    DEN

    2h 28m

    Nonstop

    11:57 PM

    LAX

    S M T W T F S
    Search

  13. F91177

    Los Angeles Intl. Airport

    5:38 PM

    LAX

    3h

    Nonstop

    8:38 PM

    SEA

    S M T W T F S
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About Denver International Airport and Seattle Tacoma Intl. Airport

Learn about Denver International Airport (DEN) and Seattle Tacoma Intl. Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 1,646.85 km
Cheapest one-way ticket price MXN532
Cheapest return ticket price MXN1,236

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

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

    Denver International Airport to Seattle Tacoma Intl. Airport takes about 2 hours 35 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 12 daily flights from Denver International Airport (DEN) to Seattle Tacoma Intl. Airport (SEA).
  • The earliest flight from Denver International Airport to Seattle Tacoma Intl. Airport departs at 06:00, and the last departs at 21:15, with about 38 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • 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 MXN4,729 in October, 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.
  • One-way flights from Denver International Airport to Seattle Tacoma Intl. Airport currently start from MXN532, and round-trip fares start from MXN1,236. The current lowest fare is a Frontier Airlines flight departing on Tue, Nov 24; prices may vary depending on availability.
  • Yes. United Airlines, Alaska Airlines, Delta Air Lines and Frontier Airlines operate direct flights from Denver International Airport to Seattle Tacoma Intl. Airport, with an average flight time of 2 hours 40 minutes, and around 137 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Denver International Airport to Seattle Tacoma Intl. Airport is MXN3,345. Prices may vary depending on the departure date, airline, and availability.
  • WestJet, Condor and Frontier Airlines are the most popular budget airlines flying from Denver International Airport to Seattle Tacoma Intl. Airport, with one-way fares starting from MXN532. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Denver International Airport to Seattle Tacoma Intl. Airport operates around 139 weekly flights, mainly by United Airlines and Alaska Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Denver International Airport and Seattle Tacoma Intl. Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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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.