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Seattle Tacoma Intl. Airport to Denver International Airport flight

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

      • Cheapest nonstop
        SEA 7:12 PM
        2h 47m
        Nonstop
        DEN 10:59 PM
        Seattle - Denver | Fri, May 1 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Thu, May 7 | Frontier Airlines
        TRY 2,579 TRY 3,384
        24% off
        24% off
        TRY 3,384 TRY 2,579
      • SEA 4:20 PM
        2h 51m
        Nonstop
        DEN 8:11 PM
        Seattle - Denver | Thu, May 7 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Mon, May 11 | Frontier Airlines
        TRY 2,579 TRY 3,384
        24% off
        24% off
        TRY 3,384 TRY 2,579
      • SEA 6:57 PM
        2h 52m
        Nonstop
        DEN 10:49 PM
        Seattle - Denver | Fri, May 8 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Mon, May 11 | Frontier Airlines
        TRY 2,579 TRY 3,384
        24% off
        24% off
        TRY 3,384 TRY 2,579
      • SEA 6:57 PM
        2h 52m
        Nonstop
        DEN 10:49 PM
        Seattle - Denver | Mon, May 11 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Fri, May 15 | Frontier Airlines
        TRY 2,579
        24% off
        TRY 3,384 TRY 2,579
      • SEA 7:12 PM
        2h 47m
        Nonstop
        DEN 10:59 PM
        Seattle - Denver | Tue, Apr 28 | Frontier Airlines
        DEN 12:51 PM
        3h 14m
        Nonstop
        SEA 3:05 PM
        Denver - Seattle | Fri, May 1 | Frontier Airlines
        TRY 2,585
        24% off
        TRY 3,384 TRY 2,585
      • SEA 4:20 PM
        2h 51m
        Nonstop
        DEN 8:11 PM
        Seattle - Denver | Mon, May 4 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Mon, May 11 | Frontier Airlines
        TRY 2,585
        24% off
        TRY 3,384 TRY 2,585
      • SEA 6:57 PM
        2h 52m
        Nonstop
        DEN 10:49 PM
        Seattle - Denver | Tue, May 5 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Sat, May 9 | Frontier Airlines
        TRY 2,585
        24% off
        TRY 3,384 TRY 2,585
      • SEA 6:57 PM
        2h 52m
        Nonstop
        DEN 10:49 PM
        Seattle - Denver | Sat, May 9 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Fri, May 15 | Frontier Airlines
        TRY 2,585
        24% off
        TRY 3,384 TRY 2,585
      • SEA 6:57 PM
        2h 52m
        Nonstop
        DEN 10:49 PM
        Seattle - Denver | Tue, May 12 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Mon, May 18 | Frontier Airlines
        TRY 2,585
        24% off
        TRY 3,384 TRY 2,585
      • SEA 6:57 PM
        2h 52m
        Nonstop
        DEN 10:49 PM
        Seattle - Denver | Wed, May 6 | Frontier Airlines
        DEN 7:15 AM
        3h 12m
        Nonstop
        SEA 9:27 AM
        Denver - Seattle | Sat, May 9 | Frontier Airlines
        TRY 2,605
        23% off
        TRY 3,384 TRY 2,605
      • SEA 1:00 PM
        17h 25m
        1 stop
        DEN Invalid Date
        Seattle - Denver | Mon, Apr 27 | Normal Airline
        DEN 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        Denver - Seattle | Wed, Apr 29 | Normal Airline
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      • Cheapest nonstop
        SEA 7:50 PM
        3h 4m
        Nonstop
        DEN 11:54 PM
        Seattle - Denver | Fri, May 29 | Frontier Airlines
        TRY 1,339 TRY 3,238
        59% off
        59% off
        TRY 3,238 TRY 1,339
      • SEA 7:59 PM
        2h 53m
        Nonstop
        DEN 11:52 PM
        Seattle - Denver | Sat, May 16 | Delta Air Lines
        TRY 1,814 TRY 3,238
        44% off
        44% off
        TRY 3,238 TRY 1,814
      • SEA 8:05 PM
        2h 54m
        Nonstop
        DEN 11:59 PM
        Seattle - Denver | Sun, Apr 26 | Alaska Airlines
        TRY 2,031 TRY 3,238
        37% off
        37% off
        TRY 3,238 TRY 2,031
      • SEA 5:45 AM
        2h 40m
        Nonstop
        DEN 9:25 AM
        Seattle - Denver | Sat, May 16 | Hahn Air
        TRY 2,177
        33% off
        TRY 3,238 TRY 2,177
      • SEA 7:50 PM
        3h 4m
        Nonstop
        DEN 11:54 PM
        Seattle - Denver | Tue, May 19 | Frontier Airlines
        TRY 2,427
        25% off
        TRY 3,238 TRY 2,427
      • SEA 9:14 PM
        2h 55m
        Nonstop
        DEN 1:09 AM
        Seattle - Denver | Wed, May 27 | Frontier Airlines
        TRY 2,447
        24% off
        TRY 3,238 TRY 2,447
      • SEA 7:50 PM
        3h 4m
        Nonstop
        DEN 11:54 PM
        Seattle - Denver | Fri, Jun 5 | Frontier Airlines
        TRY 2,447
        24% off
        TRY 3,238 TRY 2,447
      • SEA 7:50 PM
        3h 4m
        Nonstop
        DEN 11:54 PM
        Seattle - Denver | Mon, May 11 | Frontier Airlines
        TRY 2,460
        24% off
        TRY 3,238 TRY 2,460
      • SEA 7:50 PM
        3h 4m
        Nonstop
        DEN 11:54 PM
        Seattle - Denver | Fri, May 15 | Frontier Airlines
        TRY 2,467
        24% off
        TRY 3,238 TRY 2,467
      • SEA 3:19 PM
        2h 59m
        Nonstop
        DEN 7:18 PM
        Seattle - Denver | Thu, May 28 | Frontier Airlines
        TRY 2,493
        23% off
        TRY 3,238 TRY 2,493
      • SEA 1:00 PM
        17h 25m
        1 stop
        DEN Invalid Date
        Seattle - Denver | Mon, Apr 27 | Normal Airline
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Displayed flight fares from Seattle to Denver 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 Seattle Tacoma Intl. Airport to Denver International Airport

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

Data is based on average one-way flight prices from Seattle Tacoma Intl. Airport to Denver International 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 Seattle Tacoma Intl. Airport to Denver International Airport, the best time to buy is in January, with an average price of TRY 4,997. You’ll want to avoid July, when the average price can reach as high as TRY 7,406.

TRY 7,406
TRY 6,202
TRY 4,997
TRY 3,793
    Cheapest
  • TRY 5,172
    Apr
  • TRY 5,785
    May
  • TRY 7,221
    Jun
  • TRY 7,406
    Jul
  • TRY 6,255
    Aug
  • TRY 6,471
    Sep
  • TRY 5,342
    Oct
  • TRY 6,837
    Nov
  • TRY 6,349
    Dec
  • TRY 4,997
    Jan
  • TRY 6,870
    Feb
  • TRY 6,443
    Mar

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

The data is based on the past 12 months and shows the average ticket prices from Seattle Tacoma Intl. Airport to Denver 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 day to depart from Seattle Tacoma Intl. Airport to Denver International Airport is Saturday, 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.

TRY 7,475
TRY 6,495
TRY 5,514
TRY 4,534
    Cheapest
  • TRY 5,999
    Mon
  • TRY 5,747
    Tue
  • TRY 6,121
    Wed
  • TRY 6,977
    Thu
  • TRY 6,704
    Fri
  • TRY 5,514
    Sat
  • TRY 7,475
    Sun

Selected Airlines from Seattle Tacoma Intl. Airport to Denver International Airport

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

Frontier Airlines
From TRY 1,339
Delta Air Lines
From TRY 1,814
Alaska Airlines
From TRY 2,031
Hahn Air
From TRY 2,177
United Airlines
From TRY 3,528
American Airlines
From TRY 5,025
Sun Country Airlines
From TRY 7,089
Jetblue Airways
From TRY 13,565

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA1218

    Seattle Tacoma Intl. Airport

    7:10 PM

    SEA

    2h 45m

    10:55 PM

    DEN

    - M T W T - S
    Search

  2. UA2601

    Seattle Tacoma Intl. Airport

    5:07 AM

    SEA

    2h 43m

    8:50 AM

    DEN

    S M T W T F S
    Search

  3. AS602

    Seattle Tacoma Intl. Airport

    4:26 PM

    SEA

    2h 44m

    8:10 PM

    DEN

    S M T W T F S
    Search

  4. DL2851

    Seattle Tacoma Intl. Airport

    7:40 PM

    SEA

    2h 48m

    11:28 PM

    DEN

    S M T W T F S
    Search

  5. AS642

    Seattle Tacoma Intl. Airport

    8:11 PM

    SEA

    2h 48m

    11:59 PM

    DEN

    S M T W T - S
    Search

  6. F93406

    Seattle Tacoma Intl. Airport

    3:19 PM

    SEA

    2h 48m

    7:07 PM

    DEN

    S - - - T - S
    Search

  7. DL4026

    Seattle Tacoma Intl. Airport

    2:27 PM

    SEA

    2h 59m

    6:26 PM

    DEN

    S M T W T F S
    Search

  8. DL1358

    Seattle Tacoma Intl. Airport

    8:10 AM

    SEA

    2h 52m

    12:02 PM

    DEN

    S M T W T F S
    Search

  9. F91176

    Seattle Tacoma Intl. Airport

    7:41 PM

    SEA

    2h 52m

    11:33 PM

    DEN

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

Flight distance1,646.85 km
Cheapest one-way ticket priceTRY 1,339
Cheapest return ticket priceTRY 2,579

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

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

    It takes around 2 hours 53 minutes to fly from Seattle Tacoma Intl. Airport (sea) to Denver International Airport (den).
  • There are around 14 daily flights from Seattle Tacoma Intl. Airport (SEA) to Denver International Airport (DEN).
  • Tickets cost around TRY 4,999 in July, making it the cheapest month to book. Seattle Tacoma Intl. Airport (SEA) to Denver International Airport (DEN) is a popular route, so don't forget to book your tickets in advance.
  • The route from Seattle Tacoma Intl. Airport (SEA) to Denver International Airport (DEN) is quite popular. Without considering departure times or holidays, tickets cost around TRY 11,389 in April, the most expensive month to book this route.
  • The earliest flight departs from Seattle Tacoma Intl. Airport (SEA) at 05:02 and arrives in Denver International Airport (DEN) at 08:51.
  • The latest flight departs from Seattle Tacoma Intl. Airport (SEA) at 20:43 and arrives in Denver International Airport (DEN) at 00:35.
  • Frontier Airlines is a very popular airline operating an average of 4338 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.