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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 RUB 1,955 and round-trip from RUB 7,156. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Sun, Oct 25 | Frontier Airlines
        DEN 13:07
        3h 5m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Oct 28 | Frontier Airlines
        RUB 7,156 RUB 11,335
        37% off
        37% off
        RUB 11,335 RUB 7,156
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Wed, Oct 28 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Sun, Nov 1 | Frontier Airlines
        RUB 7,269 RUB 11,335
        36% off
        36% off
        RUB 11,335 RUB 7,269
      • SEA 16:58
        2h 50m
        Direct
        DEN 20:48
        Seattle - Denver | Wed, Dec 9 | Frontier Airlines
        DEN 13:32
        3h 11m
        Direct
        SEA 15:43
        Denver - Seattle | Sun, Dec 13 | Frontier Airlines
        RUB 7,294 RUB 11,335
        36% off
        36% off
        RUB 11,335 RUB 7,294
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Wed, Nov 18 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Sun, Nov 22 | Frontier Airlines
        RUB 7,294
        36% off
        RUB 11,335 RUB 7,294
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sun, Nov 8 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Nov 11 | Frontier Airlines
        RUB 7,294
        36% off
        RUB 11,335 RUB 7,294
      • 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 | Sun, Nov 15 | Frontier Airlines
        RUB 7,294
        36% off
        RUB 11,335 RUB 7,294
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sun, Nov 1 | Frontier Airlines
        DEN 13:04
        3h 8m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Nov 4 | Frontier Airlines
        RUB 7,306
        36% off
        RUB 11,335 RUB 7,306
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Tue, Oct 27 | Frontier Airlines
        DEN 07:07
        3h 3m
        Direct
        SEA 09:10
        Denver - Seattle | Thu, Oct 29 | Alaska Airlines
        RUB 8,685
        23% off
        RUB 11,335 RUB 8,685
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Sat, Oct 24 | Frontier Airlines
        DEN 13:07
        3h 5m
        Direct
        SEA 15:12
        Denver - Seattle | Wed, Oct 28 | Frontier Airlines
        RUB 8,735
        23% off
        RUB 11,335 RUB 8,735
      • 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 | Sun, Nov 8 | Frontier Airlines
        RUB 8,848
        22% off
        RUB 11,335 RUB 8,848
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Tue, Nov 17 | Frontier Airlines
        DEN 06:00
        3h 12m
        Direct
        SEA 08:12
        Denver - Seattle | Thu, Nov 19 | Delta Air Lines
        RUB 9,412
        17% off
        RUB 11,335 RUB 9,412
      • SEA 16:27
        2h 50m
        Direct
        DEN 20:17
        Seattle - Denver | Wed, Oct 14 | Frontier Airlines
        DEN 13:07
        3h 5m
        Direct
        SEA 15:12
        Denver - Seattle | Sun, Oct 18 | Frontier Airlines
        RUB 10,314
        9% off
        RUB 11,335 RUB 10,314
      • SEA 13:00
        17h 25m
        1 stop
        DEN 14:00
        Seattle - Denver | Wed, Oct 14 | Normal Airline
        DEN 15:00
        6h
        Direct
        SEA 16:00
        Denver - Seattle | Fri, Oct 16 | Normal Airline
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      • Cheapest nonstop
        SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sun, Nov 8 | Frontier Airlines
        RUB 1,955 RUB 7,162
        73% off
        73% off
        RUB 7,162 RUB 1,955
      • SEA 16:58
        2h 48m
        Direct
        DEN 20:46
        Seattle - Denver | Thu, Dec 3 | Frontier Airlines
        RUB 2,795 RUB 7,162
        61% off
        61% off
        RUB 7,162 RUB 2,795
      • SEA 16:58
        2h 50m
        Direct
        DEN 20:48
        Seattle - Denver | Tue, Dec 8 | Frontier Airlines
        RUB 2,795 RUB 7,162
        61% off
        61% off
        RUB 7,162 RUB 2,795
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Thu, Nov 19 | Frontier Airlines
        RUB 2,795
        61% off
        RUB 7,162 RUB 2,795
      • SEA 16:27
        2h 48m
        Direct
        DEN 20:15
        Seattle - Denver | Sat, Oct 31 | Frontier Airlines
        RUB 2,808
        61% off
        RUB 7,162 RUB 2,808
      • SEA 16:58
        2h 48m
        Direct
        DEN 20:46
        Seattle - Denver | Sat, Dec 5 | Frontier Airlines
        RUB 3,209
        55% off
        RUB 7,162 RUB 3,209
      • SEA 07:25
        2h 45m
        Direct
        DEN 11:10
        Seattle - Denver | Thu, Dec 3 | Alaska Airlines
        RUB 6,279
        12% off
        RUB 7,162 RUB 6,279
      • SEA 08:30
        2h 52m
        Direct
        DEN 12:22
        Seattle - Denver | Wed, Dec 2 | Delta Air Lines
        RUB 6,467
        10% off
        RUB 7,162 RUB 6,467
      • SEA 19:59
        2h 49m
        Direct
        DEN 23:48
        Seattle - Denver | Fri, Dec 4 | Delta Air Lines
        RUB 6,479
        10% off
        RUB 7,162 RUB 6,479
      • SEA 20:00
        2h 55m
        Direct
        DEN 23:55
        Seattle - Denver | Sat, Oct 31 | Delta Air Lines
        RUB 6,504
        9% off
        RUB 7,162 RUB 6,504
      • SEA 20:00
        2h 55m
        Direct
        DEN 23:55
        Seattle - Denver | Sun, Nov 8 | Delta Air Lines
        RUB 6,517
        9% off
        RUB 7,162 RUB 6,517
      • SEA 20:09
        12h 36m
        1 stop
        DEN 09:45
        Seattle - Denver | Wed, Nov 18 | Frontier Airlines
        RUB 5,940
        17% off
        RUB 7,162 RUB 5,940
      • SEA 13:00
        17h 25m
        1 stop
        DEN 14:00
        Seattle - Denver | Wed, Oct 14 | Normal Airline
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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 RUB 9,496. It is best to avoid June, when the average price can reach RUB 17,522.

RUB 17,522
RUB 13,509
RUB 9,496
RUB 5,483
    Cheapest
  • RUB 10,077
    Oct
  • RUB 12,993
    Nov
  • RUB 12,066
    Dec
  • RUB 9,496
    Jan
  • RUB 13,056
    Feb
  • RUB 12,244
    Mar
  • RUB 13,842
    Apr
  • RUB 11,893
    May
  • RUB 17,522
    Jun
  • RUB 16,980
    Jul
  • RUB 15,426
    Aug
  • RUB 14,695
    Sep

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 Friday as prices are typically highest on that day.

RUB 15,279
RUB 13,347
RUB 11,415
RUB 9,483
  • RUB 13,692
    Mon
  • RUB 11,415
    Tue
  • RUB 12,501
    Wed
  • RUB 13,868
    Thu
  • RUB 15,279
    Fri
  • RUB 13,749
    Sat
  • RUB 15,242
    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 RUB 1,955) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From RUB 1,955
Alaska Airlines
From RUB 6,279
Delta Air Lines
From RUB 6,467
American Airlines
From RUB 7,356
United Airlines
From RUB 10,101
Hahn Air
From RUB 12,770
Sun Country Airlines
From RUB 15,627

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. AS682

    Seattle-Tacoma International Airport

    07:08

    SEA

    2h 54m

    11:02

    DEN

    S M T W T F S
    Search

  2. F93406

    Seattle-Tacoma International Airport

    16:27

    SEA

    2h 50m

    20:17

    DEN

    S M T W T F S
    Search

  3. DL2851

    Seattle-Tacoma International Airport

    19:40

    SEA

    2h 48m

    23:28

    DEN

    S M T W T F S
    Search

  4. DL1358

    Seattle-Tacoma International Airport

    09:05

    SEA

    2h 44m

    12:49

    DEN

    S M T W T F S
    Search

  5. AS535

    Seattle-Tacoma International Airport

    10:13

    SEA

    2h 55m

    14:08

    DEN

    S M - W T F S
    Search

  6. DL1165

    Seattle-Tacoma International Airport

    17:45

    SEA

    2h 6m

    Direct

    20:51

    SLC

    S M T W T F S
    Search

  7. DL1667

    Salt Lake City International Airport

    20:59

    SLC

    1h 34m

    Direct

    22:33

    DEN

    S M T W T - S

  8. DL1128

    Seattle-Tacoma International Airport

    05:45

    SEA

    2h 6m

    Direct

    08:51

    SLC

    S M T W T F S
    Search

  9. DL1553

    Salt Lake City International Airport

    10:20

    SLC

    1h 35m

    Direct

    11:55

    DEN

    S M T W T F S

  10. DL953

    Seattle-Tacoma International Airport

    23:53

    SEA

    3h 22m

    Direct

    05:15

    MSP

    S M T W T F S
    Search

  11. DL2849

    Minneapolis-Saint Paul International Airport

    08:50

    MSP

    2h 12m

    Direct

    10:02

    DEN

    S M T W T F S

  12. F94204

    Seattle-Tacoma International Airport

    21:13

    SEA

    2h 46m

    Direct

    23:59

    LAS

    S - - W T - S
    Search

  13. F92350

    Harry Reid International Airport

    06:45

    LAS

    2h 3m

    Direct

    09:48

    DEN

    S - - W T F S

  14. F91178

    Seattle-Tacoma International Airport

    13:52

    SEA

    2h 45m

    Direct

    16:37

    LAX

    S M T W T F S
    Search

  15. F93156

    Los Angeles International Airport

    06:15

    LAX

    2h 30m

    Direct

    09:45

    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 distance 1,646.85km
Cheapest one-way ticket price RUB 1,955
Cheapest return ticket price RUB 7,156

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 14 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 11 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 21:15, with about 31 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 RUB 20,214 in October, 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 RUB 1,955, and round-trip fares start from RUB 7,156. The current lowest fare is a Frontier Airlines flight departing on Sun, Nov 8; 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 11 minutes, and around 120 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 RUB 16,109. 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 RUB 1,955. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle-Tacoma International Airport to Denver International Airport operates around 122 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.