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Denver

$98+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
1 adult, Economy
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Cheap 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 May 30, 2026.

This Super.com deal was found by Cheapflights users on 5/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:20 pm
PDX
-
DEN
Nonstop2h 43m
Frontier
Mon 8/173:08 pm
DEN
-
PDX
Nonstop2h 43m
Frontier
Deal found 5/27$186
This Super.com deal was found by Cheapflights users on 5/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:20 pm
PDX
-
DEN
Nonstop2h 43m
Frontier
Thu 8/203:10 pm
DEN
-
PDX
Nonstop2h 47m
Frontier
Deal found 5/27$187
This Frontier deal was found by Cheapflights users on 5/27. 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.
Fri 9/113:22 pm
PDX
-
DEN
Nonstop2h 36m
Frontier
Fri 9/182:45 pm
DEN
-
PDX
Nonstop2h 50m
Frontier
Deal found 5/27$188
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 6/175:20 pm
PDX
-
DEN
Nonstop2h 41m
Frontier
Wed 6/242:50 pm
DEN
-
PDX
Nonstop2h 45m
Frontier
Deal found 5/26$190
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 7/155:21 pm
PDX
-
DEN
Nonstop2h 43m
Frontier
Fri 7/173:08 pm
DEN
-
PDX
Nonstop2h 43m
Frontier
Deal found 5/28$192
This Alaska Airlines deal was found by Cheapflights users on 5/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:29 pm
SEA
-
DEN
Nonstop2h 47m
Alaska Airlines
Wed 8/265:34 pm
DEN
-
SEA
Nonstop3h 00m
Alaska Airlines
Deal found 5/29$195
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Fri 7/2412:20 pm
PDX
-
DEN
Nonstop2h 43m
Frontier
Tue 7/282:50 pm
DEN
-
PDX
Nonstop2h 41m
Frontier
Deal found 5/26$195
This Southwest deal was found by Cheapflights users on 5/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:10 pm
SEA
-
DEN
Nonstop2h 45m
Southwest
Tue 8/189:05 am
DEN
-
SEA
Nonstop2h 55m
Southwest
Deal found 5/28$196
This Kiwi.com deal was found by Cheapflights users on 5/27. 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.
Sat 8/2912:26 pm
PDX
-
DEN
Nonstop2h 42m
Frontier
Thu 9/33:10 pm
DEN
-
PDX
Nonstop2h 47m
Frontier
Deal found 5/27$196
This Super.com deal was found by Cheapflights users on 5/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2412:20 pm
PDX
-
DEN
Nonstop2h 43m
Frontier
Wed 7/292:55 pm
DEN
-
PDX
Nonstop2h 41m
Frontier
Deal found 5/29$197
This Super.com deal was found by Cheapflights users on 5/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:20 pm
PDX
-
DEN
Nonstop2h 41m
Frontier
Sun 6/213:10 pm
DEN
-
PDX
Nonstop2h 47m
Frontier
Deal found 5/25$198
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 6/175:20 pm
PDX
-
DEN
Nonstop2h 41m
Frontier
Mon 6/293:10 pm
DEN
-
PDX
Nonstop2h 47m
Frontier
Deal found 5/25$199

Find flight deals from Washington to Denver

Keep the following information in mind while searching for Washington to Denver flight deals. Data was last updated May 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$186
(Super.com)

One-way from

$98
(Southwest)

Popular in

June

Cheapest in

January

Average price

$267

Good round-trip deal

$264 or less

Good one-way deal

$146 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Denver Intl flights.
Search Deals
From Washington to Denver Intl
Search Deals
One-way flight from Washington to Denver Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Washington to Denver Intl.
Search Deals
Price to beat on a one-way flight from Washington to Denver Intl.
Search Deals

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 May 30, 2026.
Use the filters below to find and compare flights from Washington to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 8/13

5:45 am-12:04 pm

1 stop5h 19m

Denver Intl

Mon 8/17

6:20 am-10:37 am

1 stop5h 17m

$243

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 7/28

7:20 am-11:03 am

Nonstop2h 43m

Denver Intl

Fri 7/31

7:05 pm-8:50 pm

Nonstop2h 45m

$257

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sun 8/2

7:20 am-11:03 am

Nonstop2h 43m

Denver Intl

Thu 8/6

12:02 pm-1:46 pm

Nonstop2h 44m

$287

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Sun 9/20

3:24 pm-11:54 pm

1 stop7h 30m

Denver Intl

Sun 9/27

6:20 am-11:50 am

1 stop6h 30m

$289

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Sat 9/19

5:29 pm-11:19 pm

1 stop4h 50m

Denver Intl

Tue 9/22

8:22 am-1:27 pm

1 stop6h 05m

$289

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Wed 8/12

3:24 pm-11:58 pm

1 stop7h 34m

Denver Intl

Tue 8/18

6:44 pm-11:55 pm

1 stop6h 11m

$289

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 8/25

1:05 pm-9:20 pm

2 stops7h 15m

Denver Intl

Sun 8/30

6:05 am-11:05 am

1 stop6h 00m

$297

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 10/20

5:06 am-11:02 am

1 stop4h 56m

Denver Intl

Wed 10/21

7:50 am-9:41 am

Nonstop2h 51m

$297

BellinghamDenver

BLI - DEN

BLIDEN

Bellingham

Mon 6/22

3:47 pm-3:58 am

1 stop11h 11m

Denver Intl

Wed 6/24

10:25 am-9:14 am

1 stop23h 49m

$302

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Tue 6/16

5:14 am-8:36 am

Nonstop2h 22m

Denver Intl

Sat 6/20

7:24 pm-8:52 pm

Nonstop2h 28m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/29

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from State of Washington to Denver (average of $215). Flying from State of Washington to Denver in March is currently the most expensive (average of $356). 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 May 30, 2026.

One of the essential ways to save on airfare from State of Washington to Denver is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 8% on airfare.

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 May 30, 2026.

The most flights from USWA to DEN are scheduled on a Saturday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from State of Washington to Denver?

How far ahead should I book a flight from State of Washington to Denver?

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from State of Washington to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from State of Washington to Denver?

Use this chart to determine the cheapest time to fly round-trip from Washington to Denver. Price data was last updated on May 23, 2026.

Travelers seeking maximum savings on their State of Washington to Denver flight should consider departing on Friday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 239 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 Delta, Alaska Airlines, and Frontier fly from State of Washington to Denver in about 2h 35m. The time it takes to get you to your destination can typically vary by up to 2h 44m. There are 834 mi between State of Washington and Denver. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Everett Paine Field - 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: STARLUX Airlines (99%), Icelandair (98%), ANA( 97%).

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

    While on average a flight from State of Washington to Denver is generally $620, our data shows the cheapest flight currently is $93. When looking at the most popular route, (Seattle/Tacoma Intl - Denver Intl), you can expect to pay $195 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, September is the cheapest month in which you can book a flight from State of Washington to Denver (average of $215). Flying from State of Washington to Denver in March is currently the most expensive (average of $356). 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
Thornton
Black Hawk
Westminster
Lakewood
Broomfield
Centennial
Golden
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Fort Morgan
Glendale
Evergreen

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Alternative routes for Washington to Denver

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Top 7 airlines flying from Washington to Denver

Discover the top 7 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 May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$160FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$69Average$326FlexibilityNo cancel feeOn-time85%
DeltaCheapest$91Average$255FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$108Average$355FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$117Average$321FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$130Average$344FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$200Average$328FlexibilityNo cancel feeOn-time62%

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