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Seattle-Tacoma International Airport to Denver International Airport flight

Explore the cheapest one-way and round-trip flights from Seattle-Tacoma International Airport to Denver International Airport over the next 90 days, with one-way fares from SAR 88 and round-trip from SAR 321. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Wed, Oct 21 | Frontier Airlines
        DEN 13:07
        3h 5m
        Direct
        SEA 15:12
        Denver - Seattle | Sat, Oct 24 | Frontier Airlines
        SAR 321 SAR 593
        46% off
        46% off
        SAR 593 SAR 321
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Sat, Oct 24 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Sat, Oct 31 | Frontier Airlines
        SAR 321 SAR 593
        46% off
        46% off
        SAR 593 SAR 321
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sat, Nov 14 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Nov 18 | Frontier Airlines
        SAR 327 SAR 593
        45% off
        45% off
        SAR 593 SAR 327
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Wed, Nov 11 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Nov 18 | Frontier Airlines
        SAR 327
        45% off
        SAR 593 SAR 327
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Wed, Nov 4 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Nov 11 | Frontier Airlines
        SAR 327
        45% off
        SAR 593 SAR 327
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sat, Nov 7 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Nov 11 | Frontier Airlines
        SAR 327
        45% off
        SAR 593 SAR 327
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Wed, Oct 28 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Sat, Oct 31 | Frontier Airlines
        SAR 328
        45% off
        SAR 593 SAR 328
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Fri, Oct 23 | Frontier Airlines
        DEN 07:07
        3h 3m
        Direct
        SEA 09:10
        Denver - Seattle | Sun, Oct 25 | Alaska Airlines
        SAR 389
        34% off
        SAR 593 SAR 389
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Tue, Oct 20 | Frontier Airlines
        DEN 13:07
        3h 5m
        Direct
        SEA 15:12
        Denver - Seattle | Sat, Oct 24 | Frontier Airlines
        SAR 392
        34% off
        SAR 593 SAR 392
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sat, Oct 31 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Sat, Nov 7 | Frontier Airlines
        SAR 397
        33% off
        SAR 593 SAR 397
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Fri, Nov 13 | Frontier Airlines
        DEN 06:00
        3h 12m
        Direct
        SEA 08:12
        Denver - Seattle | Sun, Nov 15 | Delta Air Lines
        SAR 422
        28% off
        SAR 593 SAR 422
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Sat, Oct 10 | Frontier Airlines
        DEN 13:07
        3h 5m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Oct 14 | Frontier Airlines
        SAR 462
        22% off
        SAR 593 SAR 462
      • SEA 13:00
        17h 25m
        1 stop
        DEN 14:00
        Seattle - Denver | Wed, Sep 23 | Normal Airline
        DEN 15:00
        6h
        Direct
        SEA 16:00
        Denver - Seattle | Fri, Sep 25 | Normal Airline
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      • Cheapest nonstop
        SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sun, Nov 1 | Frontier Airlines
        SAR 88 SAR 370
        76% off
        76% off
        SAR 370 SAR 88
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sun, Nov 8 | Frontier Airlines
        SAR 88 SAR 370
        76% off
        76% off
        SAR 370 SAR 88
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Tue, Nov 3 | Frontier Airlines
        SAR 91 SAR 370
        75% off
        75% off
        SAR 370 SAR 91
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Tue, Oct 20 | Frontier Airlines
        SAR 94
        75% off
        SAR 370 SAR 94
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Thu, Nov 19 | Frontier Airlines
        SAR 164
        56% off
        SAR 370 SAR 164
      • SEA 19:41
        2h 53m
        Direct
        DEN 23:34
        Seattle - Denver | Wed, Oct 14 | Frontier Airlines
        SAR 253
        32% off
        SAR 370 SAR 253
      • SEA 13:16
        2h 43m
        Direct
        DEN 16:59
        Seattle - Denver | Sun, Nov 1 | Alaska Airlines
        SAR 279
        25% off
        SAR 370 SAR 279
      • SEA 07:23
        2h 51m
        Direct
        DEN 11:14
        Seattle - Denver | Mon, Nov 9 | Alaska Airlines
        SAR 280
        24% off
        SAR 370 SAR 280
      • SEA 07:23
        2h 51m
        Direct
        DEN 11:14
        Seattle - Denver | Wed, Nov 4 | Alaska Airlines
        SAR 280
        24% off
        SAR 370 SAR 280
      • SEA 07:23
        2h 51m
        Direct
        DEN 11:14
        Seattle - Denver | Tue, Nov 3 | Alaska Airlines
        SAR 280
        24% off
        SAR 370 SAR 280
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Tue, Nov 10 | Frontier Airlines
        SAR 287
        22% off
        SAR 370 SAR 287
      • SEA 20:00
        2h 55m
        Direct
        DEN 23:55
        Seattle - Denver | Tue, Oct 20 | Delta Air Lines
        SAR 288
        22% off
        SAR 370 SAR 288
      • SEA 13:00
        17h 25m
        1 stop
        DEN 14:00
        Seattle - Denver | Wed, Sep 23 | Normal Airline
        Find more flights
        Find more flights

Flight fares from Seattle-Tacoma International Airport to Denver International Airport are based on average airline prices for the next 3 months, according to Trip.com’s latest data.

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

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

The data is based on the past 12 months and shows the average one-way ticket prices from Seattle-Tacoma International Airport to Denver 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 Seattle-Tacoma International Airport to Denver International Airport are usually in January, with an average price of SAR 426. It is best to avoid June, when the average price can reach SAR 785.

SAR 785
SAR 606
SAR 426
SAR 247
    Cheapest
  • SAR 466
    Sep
  • SAR 455
    Oct
  • SAR 582
    Nov
  • SAR 541
    Dec
  • SAR 426
    Jan
  • SAR 585
    Feb
  • SAR 549
    Mar
  • SAR 620
    Apr
  • SAR 533
    May
  • SAR 785
    Jun
  • SAR 761
    Jul
  • SAR 691
    Aug

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

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

SAR 682
SAR 596
SAR 510
SAR 424
  • SAR 600
    Mon
  • SAR 510
    Tue
  • SAR 550
    Wed
  • SAR 627
    Thu
  • SAR 660
    Fri
  • SAR 609
    Sat
  • SAR 682
    Sun

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

The cheapest airline flying from Seattle-Tacoma International Airport to Denver International Airport is Frontier Airlines (from SAR 88) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From SAR 88
Alaska Airlines
From SAR 279
Delta Air Lines
From SAR 288
American Airlines
From SAR 333
United Airlines
From SAR 453
Hahn Air
From SAR 567
Sun Country Airlines
From SAR 1,061

Find more flights and airlines

What is the flight schedule from Seattle-Tacoma International 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. AS602

    Seattle-Tacoma International Airport

    14:23

    SEA

    2h 47m

    18:10

    DEN

    S M T W T F S
    Search

  2. DL1358

    Seattle-Tacoma International Airport

    08:55

    SEA

    2h 50m

    12:45

    DEN

    S M T W T F S
    Search

  3. F93406

    Seattle-Tacoma International Airport

    16:27

    SEA

    2h 50m

    20:17

    DEN

    S M T W T F S
    Search

  4. AS682

    Seattle-Tacoma International Airport

    07:21

    SEA

    2h 57m

    11:18

    DEN

    S M T W T F S
    Search

  5. DL2851

    Seattle-Tacoma International Airport

    20:20

    SEA

    2h 41m

    00:01

    DEN

    S M T W T F S
    Search

  6. DL1128

    Seattle-Tacoma International Airport

    05:20

    SEA

    2h 4m

    Direct

    08:24

    SLC

    S M T W T F S
    Search

  7. DL1553

    Salt Lake City International Airport

    09:52

    SLC

    1h 42m

    Direct

    11:34

    DEN

    S M T W T F S

  8. DL953

    Seattle-Tacoma International Airport

    23:53

    SEA

    3h 22m

    Direct

    05:15

    MSP

    S M T W T F S
    Search

  9. DL2849

    Minneapolis-Saint Paul International Airport

    08:59

    MSP

    2h 4m

    Direct

    10:03

    DEN

    S M T W T F S

  10. F91178

    Seattle-Tacoma International Airport

    20:00

    SEA

    2h 58m

    Direct

    22:58

    LAX

    S M T W T F S
    Search

  11. F93156

    Los Angeles International Airport

    06:00

    LAX

    2h 30m

    Direct

    09:30

    DEN

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

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

Flight distance1,646.85km
Cheapest one-way ticket priceSAR 88
Cheapest return ticket priceSAR 321

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

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

    Seattle-Tacoma International Airport to Denver International Airport takes about 2 hours 22 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 10 daily flights from Seattle-Tacoma International Airport (SEA) to Denver International Airport (DEN).
  • The earliest flight from Seattle-Tacoma International Airport to Denver International Airport departs at 05:00, and the last departs at 20:00, with about 28 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Seattle-Tacoma International Airport (SEA) to Denver International Airport (DEN) is quite popular. Without considering departure times or holidays, tickets cost around SAR 1,194 in September, the most expensive month to book this route.
  • Frontier Airlines is a very popular airline operating an average of 4338 flights per month.
  • One-way flights from Seattle-Tacoma International Airport to Denver International Airport currently start from SAR 88, and round-trip fares start from SAR 321. The current lowest fare is a Frontier Airlines flight departing on Sun, Nov 1; prices may vary depending on availability.
  • Yes. United Airlines, Alaska Airlines, Delta Air Lines and Frontier Airlines operate direct flights from Seattle-Tacoma International Airport to Denver International Airport, with an average flight time of 2 hours 13 minutes, and around 136 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 Seattle-Tacoma International Airport to Denver International Airport is SAR 644. Prices may vary depending on the departure date, airline, and availability.
  • WestJet, Condor and Frontier Airlines are the most popular budget airlines flying from Seattle-Tacoma International Airport to Denver International Airport, with one-way fares starting from SAR 88. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle-Tacoma International Airport to Denver International Airport operates around 94 weekly flights, mainly by United Airlines and Alaska Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle-Tacoma International Airport and Denver 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 estimated lowest price 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 prices (incl. taxes, fuel surcharge, 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 were updated within the 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.