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Washington, D.C.

$87+ Cheap flights from Denver (DEN) to Washington, D.C. (WAS)

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
1 adult, Economy
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Find cheap flights from Denver to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Denver Intl to Washington, D.C. are usually found in January or February, booked 37 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Denver to Washington, D.C.

Cheapest flights from Denver to Washington, D.C.
Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/6. 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 7/76:03 am
DEN
-
IAD
2 stops26h 10m
Frontier
Tue 7/147:30 pm
IAD
-
DEN
1 stop24h 21m
Frontier
Deal found 5/6$208
This Frontier deal was found by Cheapflights users on 5/6. 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 7/711:49 pm
DEN
-
IAD
1 stop11h 02m
Frontier
Tue 7/2111:17 am
IAD
-
DEN
1 stop12h 48m
Frontier
Deal found 5/6$210
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 5/298:22 am
DEN
-
IAD
1 stop5h 24m
Multiple Airlines
Tue 6/27:45 am
IAD
-
DEN
1 stop8h 19m
Multiple Airlines
Deal found 5/6$211
This Trip.com deal was found by Cheapflights users on 5/9. 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.
Tue 6/96:30 am
DEN
-
IAD
1 stop7h 50m
Frontier
Fri 6/1211:17 am
IAD
-
DEN
1 stop12h 59m
Frontier
Deal found 5/9$213
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 5/298:22 am
DEN
-
IAD
1 stop5h 24m
Multiple Airlines
Mon 6/18:47 pm
IAD
-
DEN
1 stop14h 18m
Multiple Airlines
Deal found 5/7$214
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/2611:54 pm
DEN
-
IAD
1 stop8h 18m
Multiple Airlines
Fri 5/294:36 pm
IAD
-
DEN
1 stop8h 25m
Multiple Airlines
Deal found 5/5$216
This Trip.com deal was found by Cheapflights users on 5/7. 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.
Thu 5/2811:54 pm
DEN
-
IAD
1 stop15h 33m
Frontier
Sun 5/319:12 am
IAD
-
DEN
1 stop20h 13m
Frontier
Deal found 5/7$218
This Expedia deal was found by Cheapflights users on 5/5. 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.
Wed 5/2010:29 pm
DEN
-
IAD
1 stop7h 43m
Frontier
Wed 5/2711:07 am
IAD
-
DEN
1 stop13h 17m
Frontier
Deal found 5/5$220
This Trip.com deal was found by Cheapflights users on 5/7. 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.
Thu 6/411:54 pm
DEN
-
IAD
1 stop8h 18m
Frontier
Tue 6/93:43 pm
IAD
-
DEN
1 stop9h 18m
Frontier
Deal found 5/7$221
This Cheapflightsfares deal was found by Cheapflights users on 5/5. 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 6/164:27 pm
DEN
-
DCA
Nonstop3h 32m
Frontier
Tue 8/186:00 pm
DCA
-
DEN
Nonstop4h 01m
Frontier
Deal found 5/5$227
This Frontier deal was found by Cheapflights users on 5/5. 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 9/94:32 pm
DEN
-
DCA
Nonstop3h 26m
Frontier
Wed 9/161:59 pm
DCA
-
DEN
Nonstop4h 04m
Frontier
Deal found 5/5$228
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 9/811:30 am
DEN
-
DCA
Nonstop3h 27m
Frontier
Tue 9/157:00 am
DCA
-
DEN
Nonstop4h 04m
Frontier
Deal found 5/5$230

Find flight deals from Denver to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$208
(Kiwi.com)

One-way from

$87
(Trip.com)

Popular in

May

Cheapest in

January

Average price

$348

Good round-trip deal

$279 or less

Good one-way deal

$155 or less
Provider with most accurate pricing for Denver Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Washington, D.C. (WAS) flights.
Search Deals
From Denver Intl to Washington, D.C. (WAS)
Search Deals
One-way flight from Denver Intl to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($62 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 May 2026
Search Deals
Price to beat on a round-trip flight from Denver Intl to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Denver Intl to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Washington, D.C. 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 10, 2026.
Use the filters below to find and compare flights from Denver to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Wed 10/7

5:35 am-2:15 pm

2 stops6h 40m

Baltimore/Washington

Sat 10/17

12:35 pm-5:05 pm

1 stop6h 30m

$362

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 6/2

6:00 pm-11:32 pm

Nonstop3h 32m

Washington, D.C. Dulles Intl

Tue 6/30

12:48 pm-2:42 pm

Nonstop3h 54m

$373

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Wed 6/17

5:00 am-10:25 am

Nonstop3h 25m

Baltimore/Washington

Fri 6/19

3:15 pm-6:40 pm

1 stop5h 25m

$377

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Tue 9/22

11:00 am-6:45 pm

1 stop5h 45m

Baltimore/Washington

Fri 9/25

10:05 am-11:50 am

Nonstop3h 45m

$377

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Tue 7/28

5:00 am-10:25 am

Nonstop3h 25m

Baltimore/Washington

Thu 8/6

8:15 am-11:25 am

1 stop5h 10m

$377

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 9/17

3:15 pm-11:55 pm

2 stops6h 40m

Washington, D.C. Reagan-National

Tue 9/22

4:50 pm-7:50 pm

1 stop5h 00m

$396

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mon 6/1

11:59 pm-5:27 am

Nonstop3h 28m

Washington, D.C. Dulles Intl

Mon 6/8

5:41 pm-7:45 pm

Nonstop4h 04m

$399

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 6/1

3:15 pm-11:44 pm

1 stop6h 29m

Washington, D.C. Reagan-National

Tue 6/9

8:00 am-12:59 pm

1 stop6h 59m

$407

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Thu 7/30

11:50 pm-5:15 am

Nonstop3h 25m

Baltimore/Washington

Thu 8/6

1:45 pm-5:45 pm

1 stop6h 00m

$413

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Fri 8/21

5:15 am-10:40 am

Nonstop3h 25m

Baltimore/Washington

Sun 8/23

3:00 pm-6:35 pm

1 stop5h 35m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Denver to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Washington, D.C. in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Denver 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 Denver to Washington, D.C.

How far ahead should I book a flight from Denver to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from Denver to Washington, D.C., you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Denver to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of $58). Flying from Denver to Washington, D.C. in February is currently the most expensive (average of $706). 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 DEN to WAS?

Find hourly flight availability from Denver to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 10, 2026.

When flying from Denver to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 28% versus a flight in the evening.

What is the cheapest day to fly from Denver to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Denver to Washington, D.C.. Price data was last updated on May 9, 2026.

Travelers seeking maximum savings on their Denver to Washington, D.C. flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Denver to Washington, D.C.

Explore weekly flight availability from Denver to Washington, D.C.. 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 10, 2026.

The most flights from DEN to WAS are scheduled on a Friday (34 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (25 on average).

How much does it cost to fly round-trip from Denver to Washington, D.C.?

What’s the top layover airport for flights from Denver to Washington, D.C.?

Share of 1-stop round-trip flights from Denver to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Tampa (TPA) – chosen by Cheapflights users on 50% of 1-stop itineraries from Denver to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Denver to Washington, D.C.?

Average round-trip fare for 1-stop flights from Denver to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Tampa (TPA) is the most affordable 1-stop option, with an average round-trip price of $201.

What’s the fastest layover option from Denver to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Denver to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 8h 57m.

Which airport typically offers the quickest layover for flights from Denver to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Denver to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Tampa (TPA) offer the fastest connection on this route, with an average layover time of 2h 21m.

The best insider tips for Denver to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Washington, D.C. trip
Our travel experts
Paul Rubio

Paul Rubio

Expert on Ethiopian Air

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Emily Zemler

Emily Zemler

Expert on DCA and DEN

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated May 10, 2026.
Read through reviews of airlines operating flights from Denver to Washington, D.C., such as Southwest,United Airlines, andFrontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,305 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,305 reviews
Southwest
8.0
Very good
4,305 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,696 reviews
Southwest
8.0
Very good
4,305 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,958 reviews
Southwest
8.0
Very good
4,305 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Denver to Washington, D.C.. 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 from for flights from Denver to Washington, D.C.?

    Most people fly from Denver Intl (DEN) if they book a flight from Denver to Washington, D.C.. On average, Denver Intl has 28 outbound flights to Washington, D.C. per day from 5 airlines. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How long is the flight from Denver to Washington, D.C.?

    Southwest, United Airlines, and Delta can get you from Denver to Washington, D.C. in just under 3h 32m. Your travel time can differ by up to 3h 08m. The distance between Denver and Washington, D.C. is about 1448 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Denver to Washington, D.C. round-trip?

    Our cheapest airline available from Denver to Washington, D.C. is Frontier. Our recent data shows that you can find tickets from as low as $99 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $144 and $165 round-trip. Frontier is currently priced 65% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Denver to Washington, D.C. one-way?

    $62 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and American Airlines, with prices starting from $88 and $98, respectively.

  • What are the most popular routes from Denver to Washington, D.C.?

    When deciding which route to take from Denver to Washington, D.C. consider Denver Intl - Washington, D.C. Dulles Intl, Denver Intl - Baltimore/Washington or Denver Intl - Washington, D.C. Reagan-National as they are the most popular.

  • What are the most reliable airlines from Denver to Washington, D.C.?

    Before booking your flight to Washington, D.C. from Denver, check out the most reliable airlines to get you to your destination on time: Avianca (97%), Ethiopian Air (96%), United Airlines( 91%).

  • What are the cheapest flights from Denver to Washington, D.C.?

    Looking for the cheapest flight from Denver to Washington, D.C.? While on average our users pay $920, our data indicates the cheapest price to be $158. The most popular route (Denver Intl - Washington, D.C. Dulles Intl), is priced around $217.

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

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

  • How can I find direct flights from Denver to Washington, D.C.?

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

  • Can I find deals for business class flights from Denver to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Denver to Washington, D.C. 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 Denver to Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of $58). Flying from Denver to Washington, D.C. in February is currently the most expensive (average of $706). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Arlington
Springfield
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Silver Spring
Hanover
Laurel
Woodbridge
Waldorf
Largo
Clinton
Hunt Valley
Cordova
Reston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Denver to Washington, D.C.

Discover the top 5 airlines that operate flights from Denver to Washington, D.C.. 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 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$249FlexibilityNo cancel feeOn-time62%
DeltaCheapest$118Average$350FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$165Average$426FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$361FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$188Average$276FlexibilityNo cancel feeOn-time71%

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