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Denver International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Denver International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from TRY 4,137 and round-trip from TRY 7,695. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      DEN 06:00
      3h 10m
      Direct
      SEA 08:10
      Denver - Seattle | Sun, Nov 15 | Delta Air Lines
      SEA 07:23
      2h 51m
      Direct
      DEN 11:14
      Seattle - Denver | Tue, Nov 17 | Alaska Airlines
      TRY 7,695 TRY 12,016
      36% off
      36% off
      TRY 12,016 TRY 7,695
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Fri, Dec 18 | Frontier Airlines
      SEA 16:58
      2h 50m
      Direct
      DEN 20:48
      Seattle - Denver | Mon, Dec 21 | Frontier Airlines
      TRY 7,733 TRY 12,016
      36% off
      36% off
      TRY 12,016 TRY 7,733
    • DEN 07:03
      3h 4m
      Direct
      SEA 09:07
      Denver - Seattle | Sun, Nov 15 | Alaska Airlines
      SEA 07:23
      2h 51m
      Direct
      DEN 11:14
      Seattle - Denver | Tue, Nov 17 | Alaska Airlines
      TRY 7,853 TRY 12,016
      35% off
      35% off
      TRY 12,016 TRY 7,853
    • DEN 13:32
      3h 8m
      Direct
      SEA 15:40
      Denver - Seattle | Sun, Dec 13 | Frontier Airlines
      SEA 16:58
      2h 50m
      Direct
      DEN 20:48
      Seattle - Denver | Wed, Dec 16 | Frontier Airlines
      TRY 7,973
      34% off
      TRY 12,016 TRY 7,973
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Mon, Dec 14 | Frontier Airlines
      SEA 16:58
      2h 50m
      Direct
      DEN 20:48
      Seattle - Denver | Mon, Dec 21 | Frontier Airlines
      TRY 8,289
      31% off
      TRY 12,016 TRY 8,289
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Mon, Dec 21 | Frontier Airlines
      SEA 16:58
      2h 50m
      Direct
      DEN 20:48
      Seattle - Denver | Fri, Dec 25 | Frontier Airlines
      TRY 8,304
      31% off
      TRY 12,016 TRY 8,304
    • DEN 13:32
      3h 8m
      Direct
      SEA 15:40
      Denver - Seattle | Fri, Dec 11 | Frontier Airlines
      SEA 16:58
      2h 50m
      Direct
      DEN 20:48
      Seattle - Denver | Mon, Dec 14 | Frontier Airlines
      TRY 8,485
      28% off
      TRY 12,016 TRY 8,485
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Sun, Dec 20 | Frontier Airlines
      SEA 16:58
      2h 50m
      Direct
      DEN 20:48
      Seattle - Denver | Fri, Dec 25 | Frontier Airlines
      TRY 8,726
      27% off
      TRY 12,016 TRY 8,726
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Wed, Dec 16 | Frontier Airlines
      SEA 16:58
      2h 50m
      Direct
      DEN 20:48
      Seattle - Denver | Mon, Dec 21 | Frontier Airlines
      TRY 8,741
      27% off
      TRY 12,016 TRY 8,741
    • DEN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Denver - Seattle | Wed, Nov 11 | Normal Airline
      SEA 15:00
      6h
      Direct
      DEN 16:00
      Seattle - Denver | Fri, Nov 13 | Normal Airline
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    • Cheapest
      DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Wed, Dec 9 | Frontier Airlines
      TRY 4,137 TRY 7,153
      42% off
      42% off
      TRY 7,153 TRY 4,137
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Sat, Dec 5 | Frontier Airlines
      TRY 4,167 TRY 7,153
      42% off
      42% off
      TRY 7,153 TRY 4,167
    • DEN 13:32
      3h 8m
      Direct
      SEA 15:40
      Denver - Seattle | Fri, Dec 4 | Frontier Airlines
      TRY 4,423 TRY 7,153
      38% off
      38% off
      TRY 7,153 TRY 4,423
    • DEN 13:14
      3h 8m
      Direct
      SEA 15:22
      Denver - Seattle | Tue, Nov 24 | Frontier Airlines
      TRY 4,446
      38% off
      TRY 7,153 TRY 4,446
    • DEN 10:08
      3h 14m
      Direct
      SEA 12:22
      Denver - Seattle | Fri, Dec 25 | Frontier Airlines
      TRY 4,641
      35% off
      TRY 7,153 TRY 4,641
    • DEN 13:03
      3h 11m
      Direct
      SEA 15:14
      Denver - Seattle | Fri, Jan 8 | Frontier Airlines
      TRY 4,777
      33% off
      TRY 7,153 TRY 4,777
    • DEN 06:42
      6h 55m
      1 stop
      SEA 12:37
      Denver - Seattle | Wed, Nov 25 | Frontier Airlines
      TRY 4,897
      32% off
      TRY 7,153 TRY 4,897
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Mon, Dec 7 | Frontier Airlines
      TRY 4,897
      60% off
      TRY 12,200 TRY 4,897
    • DEN 06:01
      3h 10m
      Direct
      SEA 08:11
      Denver - Seattle | Tue, Nov 24 | Alaska Airlines
      TRY 4,957
      31% off
      TRY 7,153 TRY 4,957
    • DEN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Denver - Seattle | Wed, Nov 11 | Normal Airline
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    • Cheapest nonstop
      DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Wed, Dec 9 | Frontier Airlines
      TRY 4,137 TRY 7,153
      42% off
      42% off
      TRY 7,153 TRY 4,137
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Sat, Dec 5 | Frontier Airlines
      TRY 4,167 TRY 7,153
      42% off
      42% off
      TRY 7,153 TRY 4,167
    • DEN 13:32
      3h 8m
      Direct
      SEA 15:40
      Denver - Seattle | Fri, Dec 4 | Frontier Airlines
      TRY 4,423 TRY 7,153
      38% off
      38% off
      TRY 7,153 TRY 4,423
    • DEN 13:14
      3h 8m
      Direct
      SEA 15:22
      Denver - Seattle | Tue, Nov 24 | Frontier Airlines
      TRY 4,446
      38% off
      TRY 7,153 TRY 4,446
    • DEN 10:08
      3h 14m
      Direct
      SEA 12:22
      Denver - Seattle | Fri, Dec 25 | Frontier Airlines
      TRY 4,641
      35% off
      TRY 7,153 TRY 4,641
    • DEN 13:03
      3h 11m
      Direct
      SEA 15:14
      Denver - Seattle | Fri, Jan 8 | Frontier Airlines
      TRY 4,777
      33% off
      TRY 7,153 TRY 4,777
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Mon, Dec 7 | Frontier Airlines
      TRY 4,897
      60% off
      TRY 12,200 TRY 4,897
    • DEN 06:01
      3h 10m
      Direct
      SEA 08:11
      Denver - Seattle | Tue, Nov 24 | Alaska Airlines
      TRY 4,957
      31% off
      TRY 7,153 TRY 4,957
    • DEN 15:05
      3h 2m
      Direct
      SEA 17:07
      Denver - Seattle | Wed, Jan 6 | Alaska Airlines
      TRY 5,085
      28% off
      TRY 7,153 TRY 5,085
    • DEN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Denver - Seattle | Wed, Nov 11 | Normal Airline
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    • Cheapest nonstop
      DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Wed, Dec 9 | Frontier Airlines
      TRY 4,137 TRY 12,200
      66% off
      66% off
      TRY 12,200 TRY 4,137
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Sat, Dec 5 | Frontier Airlines
      TRY 4,167 TRY 12,200
      66% off
      66% off
      TRY 12,200 TRY 4,167
    • DEN 13:14
      3h 8m
      Direct
      SEA 15:22
      Denver - Seattle | Tue, Nov 24 | Frontier Airlines
      TRY 4,446 TRY 12,200
      64% off
      64% off
      TRY 12,200 TRY 4,446
    • DEN 13:32
      3h 11m
      Direct
      SEA 15:43
      Denver - Seattle | Mon, Dec 7 | Frontier Airlines
      TRY 4,897
      60% off
      TRY 12,200 TRY 4,897
    • DEN 13:14
      3h 8m
      Direct
      SEA 15:22
      Denver - Seattle | Thu, Nov 26 | Frontier Airlines
      TRY 5,266
      56% off
      TRY 12,200 TRY 5,266
    • DEN 13:14
      3h 8m
      Direct
      SEA 15:22
      Denver - Seattle | Wed, Nov 25 | Frontier Airlines
      TRY 5,386
      56% off
      TRY 12,200 TRY 5,386
    • DEN 21:55
      3h 4m
      Direct
      SEA 23:59
      Denver - Seattle | Wed, Nov 25 | Alaska Airlines
      TRY 5,439
      55% off
      TRY 12,200 TRY 5,439
    • DEN 13:32
      3h 8m
      Direct
      SEA 15:40
      Denver - Seattle | Wed, Dec 2 | Frontier Airlines
      TRY 5,627
      54% off
      TRY 12,200 TRY 5,627
    • DEN 06:05
      3h 18m
      Direct
      SEA 08:23
      Denver - Seattle | Sun, Dec 20 | Delta Air Lines
      TRY 6,845
      44% off
      TRY 12,200 TRY 6,845
    • DEN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Denver - Seattle | Wed, Nov 11 | Normal Airline
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    • Cheapest nonstop
      DEN 07:03
      3h 4m
      Direct
      SEA 09:07
      Denver - Seattle | Sun, Nov 15 | Alaska Airlines
      TRY 8,906 TRY 19,948
      55% off
      55% off
      TRY 19,948 TRY 8,906
    • DEN 13:04
      3h 8m
      Direct
      SEA 15:12
      Denver - Seattle | Wed, Nov 11 | Frontier Airlines
      TRY 9,305 TRY 19,948
      53% off
      53% off
      TRY 19,948 TRY 9,305
    • DEN 13:04
      3h 8m
      Direct
      SEA 15:12
      Denver - Seattle | Mon, Nov 16 | Frontier Airlines
      TRY 9,357 TRY 19,948
      53% off
      53% off
      TRY 19,948 TRY 9,357
    • DEN 13:04
      3h 8m
      Direct
      SEA 15:12
      Denver - Seattle | Fri, Nov 13 | Frontier Airlines
      TRY 9,703
      51% off
      TRY 19,948 TRY 9,703
    • DEN 07:03
      3h 4m
      Direct
      SEA 09:07
      Denver - Seattle | Wed, Nov 11 | Alaska Airlines
      TRY 12,968
      35% off
      TRY 19,948 TRY 12,968
    • DEN 12:12
      3h 3m
      Direct
      SEA 14:15
      Denver - Seattle | Tue, Nov 10 | Alaska Airlines
      TRY 14,562
      27% off
      TRY 19,948 TRY 14,562
    • DEN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Denver - Seattle | Wed, Nov 11 | Normal Airline
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    • DEN 15:05
      3h 2m
      Direct
      SEA 17:07
      Denver - Seattle | Wed, Jan 6 | Alaska Airlines
      TRY 5,085 TRY 7,153
      28% off
      28% off
      TRY 7,153 TRY 5,085
    • DEN 16:05
      3h 2m
      Direct
      SEA 18:07
      Denver - Seattle | Thu, Dec 17 | United Airlines
      TRY 10,313 TRY 25,266
      59% off
      59% off
      TRY 25,266 TRY 10,313
    • DEN 16:05
      3h 2m
      Direct
      SEA 18:07
      Denver - Seattle | Fri, Dec 18 | United Airlines
      TRY 11,930 TRY 25,266
      53% off
      53% off
      TRY 25,266 TRY 11,930
    • DEN 16:05
      3h 2m
      Direct
      SEA 18:07
      Denver - Seattle | Sun, Dec 20 | United Airlines
      TRY 12,088
      52% off
      TRY 25,266 TRY 12,088
    • DEN 15:25
      3h 2m
      Direct
      SEA 17:27
      Denver - Seattle | Sun, Nov 15 | Alaska Airlines
      TRY 12,404
      51% off
      TRY 25,266 TRY 12,404
    • DEN 16:05
      3h 2m
      Direct
      SEA 18:07
      Denver - Seattle | Tue, Dec 22 | United Airlines
      TRY 12,772
      49% off
      TRY 25,266 TRY 12,772
    • DEN 16:05
      3h 2m
      Direct
      SEA 18:07
      Denver - Seattle | Fri, Jan 1 | United Airlines
      TRY 14,201
      44% off
      TRY 25,266 TRY 14,201
    • DEN 16:02
      3h 2m
      Direct
      SEA 18:04
      Denver - Seattle | Sat, Jan 2 | United Airlines
      TRY 16,947
      33% off
      TRY 25,266 TRY 16,947
    • DEN 16:05
      3h 2m
      Direct
      SEA 18:07
      Denver - Seattle | Mon, Dec 28 | United Airlines
      TRY 17,037
      33% off
      TRY 25,266 TRY 17,037
    • DEN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Denver - Seattle | Wed, Nov 11 | Normal Airline
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Displayed flight fares from Denver to Seattle 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 International Airport

What is the cheapest month to fly from Denver International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Denver International Airport to Seattle-Tacoma International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Denver International Airport to Seattle-Tacoma International Airport are usually in April, with an average price of TRY 6,066. It is best to avoid October, when the average price can reach TRY 10,699.

TRY 10,699
TRY 8,383
TRY 6,066
TRY 3,750
    Cheapest
  • TRY 7,070
    Nov
  • TRY 7,495
    Dec
  • TRY 6,770
    Jan
  • TRY 7,201
    Feb
  • TRY 7,490
    Mar
  • TRY 6,066
    Apr
  • TRY 8,036
    May
  • TRY 9,578
    Jun
  • TRY 8,880
    Jul
  • TRY 7,859
    Aug
  • TRY 8,685
    Sep
  • TRY 10,699
    Oct

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

The data is based on the past 12 months and shows the average ticket prices from Denver International Airport to Seattle-Tacoma International 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 departure day from Denver International Airport to Seattle-Tacoma International Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Thursday as prices are typically highest on that day.

TRY 8,845
TRY 7,505
TRY 6,164
TRY 4,824
    Cheapest
  • TRY 8,241
    Mon
  • TRY 6,664
    Tue
  • TRY 6,164
    Wed
  • TRY 8,845
    Thu
  • TRY 8,608
    Fri
  • TRY 8,382
    Sat
  • TRY 8,591
    Sun

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

The cheapest airline flying from Denver International Airport to Seattle-Tacoma International Airport is Frontier Airlines (from TRY 4,137) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From TRY 4,137
Alaska Airlines
From TRY 4,957
Delta Air Lines
From TRY 5,138
American Airlines
From TRY 5,687
United Airlines
From TRY 7,793
Sun Country Airlines
From TRY 9,230
Hahn Air
From TRY 12,246

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What is the 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. AS493

    Denver International Airport

    15:25

    DEN

    3h 2m

    17:27

    SEA

    S M T W T F S
    Search

  2. DL2543

    Denver International Airport

    18:42

    DEN

    3h 6m

    20:48

    SEA

    S M T W T F S
    Search

  3. AS317

    Denver International Airport

    07:03

    DEN

    3h 4m

    09:07

    SEA

    S M T W T F S
    Search

  4. DL1731

    Denver International Airport

    06:45

    DEN

    3h 14m

    08:59

    SEA

    S M T W T F S
    Search

  5. F92341

    Denver International Airport

    14:48

    DEN

    2h 43m

    Direct

    16:31

    LAX

    S M T W T F S
    Search

  6. F91177

    Los Angeles International Airport

    06:00

    LAX

    3h 3m

    Direct

    09:03

    SEA

    S M T W T F S

  7. DL2362

    Denver International Airport

    15:40

    DEN

    1h 35m

    Direct

    17:15

    SLC

    S M T W T F S
    Search

  8. DL2817

    Salt Lake City International Airport

    15:35

    SLC

    2h 18m

    Direct

    16:53

    SEA

    S M T W T F S

  9. F94967

    Denver International Airport

    13:19

    DEN

    2h 5m

    Direct

    14:24

    LAS

    S M T W T F S
    Search

  10. F92407

    Harry Reid International Airport

    07:35

    LAS

    3h 3m

    Direct

    10:38

    SEA

    S - - W T - S
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About Denver International Airport and Seattle-Tacoma International Airport

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

Flight distance 1,646.85km
Cheapest one-way ticket price TRY 4,137
Cheapest return ticket price TRY 6,672

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

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

    Denver International Airport to Seattle-Tacoma International Airport takes about 2 hours 34 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 10 daily flights from Denver International Airport (DEN) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Denver International Airport to Seattle-Tacoma International Airport departs at 06:00, and the last departs at 21:07, with about 34 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 International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around TRY 14,946 in November, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • 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 International Airport currently start from TRY 4,137, and round-trip fares start from TRY 6,672. The current lowest fare is a Frontier Airlines flight departing on Wed, Dec 9; 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 International Airport, with an average flight time of 2 hours 35 minutes, and around 111 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 International Airport is TRY 9,741. Prices may vary depending on the departure date, airline, and availability.
  • Condor, Frontier Airlines and Volaris are the most popular budget airlines flying from Denver International Airport to Seattle-Tacoma International Airport, with one-way fares starting from TRY 4,137. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Denver International Airport to Seattle-Tacoma International Airport operates around 109 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 International 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.

Find Cheap Flights with Trip.com

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

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, 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 have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.