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$69+ Cheap flights from District of Columbia 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DEN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from District of Columbia to Denver

Cheapest flights from District of Columbia to Denver
Explore the most affordable flight options available from District of Columbia to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:40 amIAD - DEN
1 stop7h 05mFrontier
Thu 11/136:00 amDEN - IAD
1 stop12h 57mFrontier
Deal found 10/28$130
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:15 amDCA - DEN
Nonstop4h 05mFrontier
Sat 11/154:34 pmDEN - DCA
Nonstop3h 25mFrontier
Deal found 10/28$131
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sat 12/65:45 amIAD - DEN
1 stop29h 17mFrontier
Fri 12/1212:59 amDEN - IAD
1 stop20h 06mFrontier
Deal found 10/28$132
This Frontier deal was found by Cheapflights users on 10/27. 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.
Wed 12/101:00 pmDCA - DEN
Nonstop4h 06mFrontier
Sun 12/147:40 amDEN - DCA
Nonstop3h 26mFrontier
Deal found 10/27$133
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 pmDCA - DEN
Nonstop4h 12mFrontier
Sun 12/74:38 pmDEN - DCA
Nonstop3h 21mFrontier
Deal found 10/29$136
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:40 amIAD - DEN
1 stop7h 05mFrontier
Mon 11/179:00 amDEN - IAD
1 stop8h 52mFrontier
Deal found 10/29$137
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 pmDCA - DEN
Nonstop4h 12mFrontier
Sun 12/77:40 amDEN - DCA
Nonstop3h 26mFrontier
Deal found 10/28$137
This Frontier deal was found by Cheapflights users on 10/27. 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.
Thu 12/252:00 pmDCA - DEN
Nonstop4h 15mFrontier
Mon 12/297:35 amDEN - DCA
Nonstop3h 26mFrontier
Deal found 10/27$138
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/118:15 amDCA - DEN
Nonstop4h 05mFrontier
Mon 11/174:34 pmDEN - DCA
Nonstop3h 25mFrontier
Deal found 10/28$139
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:15 amDCA - DEN
Nonstop4h 05mFrontier
Sat 11/157:35 amDEN - DCA
Nonstop3h 27mFrontier
Deal found 10/28$140
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/158:36 pmIAD - DEN
1 stop13h 39mFrontier
Mon 11/179:00 amDEN - IAD
1 stop8h 52mFrontier
Deal found 10/29$144
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 12/28:00 amDCA - DEN
Nonstop4h 13mFrontier
Tue 12/97:40 amDEN - DCA
Nonstop3h 26mFrontier
Deal found 10/28$146

Cheap flight deals from District of Columbia to Denver

Keep the following information in mind while searching for District of Columbia to Denver flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$130
(Frontier)

One-way from

$69
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$277

Good round-trip deal

$128 or less

Good one-way deal

$125 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Denver Intl flights.
Search Deals
From District of Columbia to Denver Intl
Search Deals
One-way flight from District of Columbia to Denver Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from District of Columbia to Denver Intl.
Search Deals
Price to beat on a one-way flight from District of Columbia to Denver Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 October 30, 2025.
Use the filters below to find and compare flights from District of Columbia to Denver that are best for you.

Fly from

District of Columbia

Fly to

Denver

Route

Depart

Return

Price

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 12/10

6:00 am-11:05 am

1 stop7h 05m

Denver Intl

Sat 12/13

11:50 am-10:59 pm

1 stop9h 09m

$185

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 12/10

6:00 am-11:05 am

1 stop7h 05m

Denver Intl

Tue 12/16

11:50 am-10:59 pm

1 stop9h 09m

$185

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Fri 1/23

10:32 pm-12:32 am

Nonstop4h 00m

Denver Intl

Tue 1/27

11:59 pm-5:21 am

Nonstop3h 22m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Thu 1/29

5:15 pm-7:28 pm

Nonstop4h 13m

Denver Intl

Sat 1/31

11:59 pm-5:21 am

Nonstop3h 22m

$197

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Mon 11/17

6:24 am-11:05 am

1 stop6h 41m

Denver Intl

Tue 11/18

11:50 am-10:59 pm

1 stop9h 09m

$201

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Thu 11/13

6:24 am-11:05 am

1 stop6h 41m

Denver Intl

Tue 11/18

11:50 am-10:59 pm

1 stop9h 09m

$201

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 11/15

6:24 am-11:05 am

1 stop6h 41m

Denver Intl

Wed 11/19

11:50 am-10:59 pm

1 stop9h 09m

$201

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Fri 12/12

6:00 am-11:05 am

1 stop7h 05m

Denver Intl

Sat 12/13

11:50 am-10:59 pm

1 stop9h 09m

$207

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Thu 12/11

6:00 am-11:05 am

1 stop7h 05m

Denver Intl

Mon 12/15

11:50 am-10:59 pm

1 stop9h 09m

$207

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sun 12/7

6:00 am-11:05 am

1 stop7h 05m

Denver Intl

Wed 12/10

11:50 am-10:59 pm

1 stop9h 09m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 46 results
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Best time to book a flight from District of Columbia to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from District of Columbia 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 District of Columbia to Denver

What is the cheapest month to book a flight from District of Columbia to Denver?

Currently, November is the cheapest month in which you can book a flight from District of Columbia to Denver (average of $79). Flying from District of Columbia to Denver in June is currently the most expensive (average of $173). 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 DC to DEN?

Find hourly flight availability from District of Columbia 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 October 30, 2025.

When flying from District of Columbia to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 20% versus a flight in the morning.

What is the cheapest day to fly from District of Columbia to Denver?

Use this chart to determine the cheapest time to fly round-trip from District of Columbia to Denver. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their District of Columbia to Denver flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday evenings 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 District of Columbia 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 District of Columbia?

    For a flight from District of Columbia to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city.

  • How long is the flight from District of Columbia to Denver?

    A quick flight from District of Columbia to Denver can take about 3h 50m. JetBlue provides one of the quickest options available for as low as $217. The distance between District of Columbia and Denver is about 1448 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from District of Columbia to Denver one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $74. However, be on the lookout for offers from United Airlines and JetBlue, as they are both options that can get you from District of Columbia to Denver for a low price.

  • What are the most reliable airlines from District of Columbia to Denver?

    Consider Ethiopian Air (95%), Southwest (89%) or United Airlines (89%) when booking your flight. These represent the most reliable airlines when flying from District of Columbia to Denver.

  • What are the cheapest flights from District of Columbia to Denver?

    The cheapest flight price from District of Columbia to Denver is $108. On average you can expect to pay $998. The most popular route, (Washington, D.C. Dulles Intl - Denver Intl), can usually be booked for $169.

  • Can I find deals for flights from District of Columbia to Denver that include hotel bookings?

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

  • How can I find direct flights from District of Columbia to Denver?

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

  • Can I find deals for business class flights from District of Columbia to Denver?

    Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Denver?

    Currently, November is the cheapest month in which you can book a flight from District of Columbia to Denver (average of $79). Flying from District of Columbia to Denver in June is currently the most expensive (average of $173). 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
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Alternative routes for District of Columbia to Denver

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Top 6 airlines flying from District of Columbia to Denver

Discover the top 6 airlines that operate flights from District of Columbia 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$102Average$239FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$128Average$321FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$335FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$166Average$296FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$178Average$340FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$213Average$386FlexibilityNo cancel feeOn-time69%

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