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$41+ Cheap flights from Washington to Denver (DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Washington to Denver

Keep the following information in mind while searching for Washington to Denver flight deals. Data was last updated September 15, 2025.

Round-trip from

$74
(Cheapflightsfares)

One-way from

$41
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$189

Good round-trip deal

$130 or less

Good one-way deal

$102 or less
From Washington to Denver Intl
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One-way flight from Washington to Denver Intl
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Washington to Denver Intl.
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Price to beat on a one-way flight from Washington to Denver Intl.
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Find flight deals from Washington to Denver

Cheapest flights from Washington to Denver
Explore the most affordable flight options available from Washington to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:53 pmPAE - DEN
Nonstop2h 46mFrontier
Mon 10/209:48 amDEN - PAE
Nonstop2h 57mFrontier
Deal found 9/13$74
This Expedia deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:56 pmPAE - DEN
Nonstop2h 48mFrontier
Mon 10/69:50 amDEN - PAE
Nonstop3h 00mFrontier
Deal found 9/13$84
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:15 amPDX - DEN
Nonstop2h 43mFrontier
Tue 10/79:58 amDEN - PDX
Nonstop2h 50mFrontier
Deal found 9/15$91
This Cheapflightsfares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:56 pmPAE - DEN
Nonstop2h 48mFrontier
Mon 9/299:50 amDEN - PAE
Nonstop3h 00mFrontier
Deal found 9/13$92
This eDestinos deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:52 pmPDX - DEN
Nonstop2h 43mFrontier
Sun 11/169:48 amDEN - PDX
1 stop5h 43mFrontier
Deal found 9/14$96
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:43 pmPDX - DEN
Nonstop2h 43mFrontier
Fri 10/3110:05 amDEN - PDX
Nonstop2h 51mFrontier
Deal found 9/15$97
This Frontier deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:00 amSEA - DEN
Nonstop2h 53mFrontier
Wed 10/89:58 amDEN - SEA
Nonstop3h 09mFrontier
Deal found 9/13$98
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:00 amSEA - DEN
Nonstop2h 53mFrontier
Sun 10/125:30 amDEN - SEA
Nonstop3h 03mFrontier
Deal found 9/13$101
This Trip.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:56 pmPAE - DEN
Nonstop2h 48mFrontier
Mon 10/209:48 amDEN - PAE
Nonstop2h 57mFrontier
Deal found 9/13$101
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:43 pmPDX - DEN
Nonstop2h 43mFrontier
Wed 10/229:58 amDEN - PDX
Nonstop2h 50mFrontier
Deal found 9/14$101
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1812:43 pmPDX - DEN
Nonstop2h 43mFrontier
Mon 10/209:58 amDEN - PDX
Nonstop2h 50mFrontier
Deal found 9/14$102
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:12 amSEA - DEN
Nonstop2h 56mFrontier
Sat 10/259:58 amDEN - SEA
Nonstop3h 09mFrontier
Deal found 9/14$103

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Washington to Denver that are best for you.

Fly from

Washington

Fly to

Denver

Route

Depart

Return

Price

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Fri 10/10

12:53 pm-4:39 pm

Nonstop2h 46m

Denver Intl

Mon 10/13

9:48 am-11:45 am

Nonstop2h 57m

$74

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Fri 10/24

12:53 pm-4:39 pm

Nonstop2h 46m

Denver Intl

Mon 10/27

9:48 am-11:45 am

Nonstop2h 57m

$74

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Fri 10/17

12:53 pm-4:39 pm

Nonstop2h 46m

Denver Intl

Mon 10/20

9:48 am-11:45 am

Nonstop2h 57m

$74

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 11/6

1:08 pm-5:01 pm

Nonstop2h 53m

Denver Intl

Mon 11/10

6:00 am-1:37 pm

1 stop8h 37m

$110

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Fri 10/31

12:53 pm-4:39 pm

Nonstop2h 46m

Denver Intl

Sun 11/2

5:20 am-5:18 pm

1 stop12h 58m

$113

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Fri 10/17

12:53 pm-4:39 pm

Nonstop2h 46m

Denver Intl

Thu 10/23

9:48 am-5:39 pm

1 stop8h 51m

$113

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Fri 10/3

11:30 am-9:12 pm

1 stop8h 42m

Denver Intl

Fri 10/10

9:48 am-11:45 am

Nonstop2h 57m

$113

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Mon 9/29

11:30 am-9:12 pm

1 stop8h 42m

Denver Intl

Fri 10/3

9:50 am-11:50 am

Nonstop3h 00m

$113

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Mon 10/6

11:30 am-9:12 pm

1 stop8h 42m

Denver Intl

Mon 10/13

9:48 am-11:45 am

Nonstop2h 57m

$113

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Fri 10/24

12:53 pm-4:39 pm

Nonstop2h 46m

Denver Intl

Sun 10/26

9:48 am-5:39 pm

1 stop8h 51m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Denver

What is the cheapest month to book a flight from State of Washington to Denver?

Currently, October is the cheapest month in which you can book a flight from State of Washington to Denver (average of $197). Flying from State of Washington to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to DEN?

Find hourly flight availability from Washington to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from State of Washington to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from State of Washington to Denver

Explore weekly flight availability from Washington to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from USWA to DEN are scheduled on a Friday (43 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

Related info for your journey

Find useful and relevant information for your journey from Washington to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Washington?

    Most people fly into Denver Intl (DEN) if they book a flight to Denver from Washington. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How popular is this State of Washington to Denver flight route?

    The Washington to Denver Intl flight path was viewed by 301 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from State of Washington to Denver?

    Airlines like Frontier, Delta, and Alaska Airlines fly from State of Washington to Denver in about 2h 30m. The time it takes to get you to your destination can typically vary by up to 2h 19m. There are 989 mi between State of Washington and Denver. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Denver one-way?

    $77 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $77 and $77, respectively.

  • What are the most popular routes from State of Washington to Denver?

    When deciding which route to take from State of Washington to Denver consider Seattle/Tacoma Intl - Denver Intl, Portland - Denver Intl or Spokane - Denver Intl as they are the most popular.

  • What are the most reliable airlines from State of Washington to Denver?

    Before booking your flight to Denver from State of Washington, check out the most reliable airlines to get you to your destination on time: China Airlines (80%), ANA (79%), United Airlines( 76%).

  • What are the cheapest flights from State of Washington to Denver?

    While on average a flight from State of Washington to Denver is generally $706, our data shows the cheapest flight currently is $79. When looking at the most popular route, (Seattle/Tacoma Intl - Denver Intl), you can expect to pay $79 for that flight.

  • Can I find deals for flights from Washington to Denver that include hotel bookings?

    Yes. In addition to deals on Washington to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Denver.

  • Can I find deals for business class flights from Washington to Denver?

    Yes. Cheapflights offers flight deals from Washington to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Denver?

    Currently, October is the cheapest month in which you can book a flight from State of Washington to Denver (average of $197). Flying from State of Washington to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Golden
Winter Park
Lakewood
Broomfield
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Denver

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Top 6 airlines flying from Washington to Denver

Discover the top 6 airlines that operate flights from Washington to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$156FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$86Average$371FlexibilityNo cancel feeOn-time85%
DeltaCheapest$115Average$279FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$128Average$324FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$149Average$369FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$167Average$416FlexibilityNo cancel feeOn-time75%

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