HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reagan-National

$97+ Cheap flights from Denver (DEN) to Reagan-National (DCA)

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DCA
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Reagan-National 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Denver Intl to Washington, D.C. Reagan-National are usually found in February or September, booked 88 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Denver to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Reagan-National (DCA). 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 April 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$156
(Cheapflightsfares)

One-way from

$97
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$248

Good round-trip deal

$220 or less

Good one-way deal

$125 or less
Provider with most accurate pricing for Denver Intl-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Washington, D.C. Reagan-National flights.
Search Deals
From Denver Intl to Washington, D.C. Reagan-National
Search Deals
One-way flight from Denver Intl to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way flight from Denver Intl to Washington, D.C. Reagan-National.
Search Deals

Find flight deals from Denver to Reagan-National

Cheapest flights from Denver to Reagan-National
Explore the most affordable flight options available from Denver to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/244:25 pmDEN - DCA
Nonstop3h 34mFrontier
Sat 5/311:00 pmDCA - DEN
Nonstop3h 57mFrontier
Deal found 4/25$156
This American Airlines deal was found by Cheapflights users on 4/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/147:21 amDEN - DCA
1 stop5h 09mAmerican Airlines
Sat 6/145:32 pmDCA - DEN
1 stop7h 24mAmerican Airlines
Deal found 4/24$231
This JetBlue deal was found by Cheapflights users on 4/25. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2410:38 pmDEN - DCA
1 stop8h 42mJetBlue
Mon 5/266:09 amDCA - DEN
1 stop9h 34mJetBlue
Deal found 4/25$237
This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/39:40 amDEN - DCA
1 stop5h 44mDelta
Fri 7/412:24 pmDCA - DEN
1 stop6h 54mDelta
Deal found 4/24$245
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/309:40 amDEN - DCA
Nonstop3h 26mUnited Airlines
Tue 9/24:24 pmDCA - DEN
Nonstop3h 56mUnited Airlines
Deal found 4/25$251
This Southwest deal was found by Cheapflights users on 4/23. 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 8/198:05 amDEN - DCA
1 stop5h 25mSouthwest
Sat 8/236:55 amDCA - DEN
2 stops9h 10mSouthwest
Deal found 4/23$294
This Orbitz deal was found by Cheapflights users on 4/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:40 amDEN - DCA
Nonstop3h 27mMultiple Airlines
Wed 5/288:00 amDCA - DEN
1 stop10h 49mMultiple Airlines
Deal found 4/24$328

Cheapflights Fare Finder

Customize your flight search to find flights from Denver to Reagan-National 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 April 25, 2025.
Use the filters below to find and compare flights from Denver to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Denver

Fly to

Reagan-National

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sat 5/24

4:25 pm-9:59 pm

Nonstop3h 34m

Washington, D.C. Reagan-National

Sat 5/31

1:00 pm-2:57 pm

Nonstop3h 57m

$156

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sat 6/14

7:21 am-2:30 pm

1 stop5h 09m

Washington, D.C. Reagan-National

Sat 6/14

5:32 pm-10:56 pm

1 stop7h 24m

$231

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sat 5/24

10:38 pm-9:20 am

1 stop8h 42m

Washington, D.C. Reagan-National

Mon 5/26

6:09 am-1:43 pm

1 stop9h 34m

$237

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 6/3

9:40 am-5:24 pm

1 stop5h 44m

Washington, D.C. Reagan-National

Fri 7/4

12:24 pm-5:18 pm

1 stop6h 54m

$245

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 6/3

6:00 am-3:48 pm

1 stop7h 48m

Washington, D.C. Reagan-National

Sat 6/7

4:17 pm-6:31 pm

Nonstop4h 14m

$293

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 6/10

2:45 pm-11:50 pm

1 stop7h 05m

Washington, D.C. Reagan-National

Fri 6/13

8:15 pm-12:40 am

1 stop6h 25m

$297

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 5/23

6:40 am-12:07 pm

Nonstop3h 27m

Washington, D.C. Reagan-National

Wed 5/28

8:00 am-4:49 pm

1 stop10h 49m

$328

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 6/2

6:38 am-12:00 pm

Nonstop3h 22m

$97

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 5/28

12:06 pm-7:31 pm

1 stop5h 25m

$119

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 5/13

2:39 pm-10:58 pm

1 stop6h 19m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 15 results
1
2

Compare providers for flights from Denver to Reagan-National

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 Reagan-National in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
Trip.comPrice 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. Reagan-National Airport 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. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust eDreams the most. eDreams 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. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Denver to Washington, D.C. Reagan-National Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Washington, D.C. Reagan-National Airport trip
Airports
DEN

For a quick security experience at DEN, use the South checkpoint, which is open 24/7, or reserve a time online for general screening.

Read more about DENby Emily Zemler
DCA

DCA is easily accessible via public transportation. The airport has a dedicated Metro stop on the Yellow and Blue lines, offering a clean and affordable travel option.

Read more about DCAby Emily Zemler
Our travel experts
Emily Zemler

Emily Zemler

Expert on DCA and DEN

Emily Zemler

Emily Zemler

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

Best time to book a flight from Denver to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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. Reagan-National Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Reagan-National. Price data was last updated on April 18, 2025.

The best time to book flights from Denver to Washington, D.C. Reagan-National Airport is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. Reagan-National Airport (average of $278). Flying from Denver to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). 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 DCA?

Find hourly flight availability from Denver to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 26% on flights from Denver to Washington, D.C. Reagan-National Airport by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Denver to Washington, D.C. Reagan-National Airport?

Use this chart to determine the cheapest time to fly round-trip from Denver to Reagan-National. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Denver to Washington, D.C. Reagan-National Airport flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday evenings 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. Reagan-National Airport

Explore weekly flight availability from Denver to Reagan-National. 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 April 25, 2025.

The most flights from DEN to DCA are scheduled on a Monday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated April 25, 2025.
Read through reviews of airlines operating flights from Denver to Washington, D.C., such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,927 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,927 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,289 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Denver to Reagan-National. 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. Reagan-National?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly out of when you book flights from Denver to Washington, D.C. Reagan-National. 5 airlines have flights from Denver Intl to Washington, D.C. Reagan-National on a regular basis. Booking flights from Denver Intl to Washington, D.C. Reagan-National should not be difficult; the airport handles an average of 5 outbound flights to Washington, D.C. Reagan-National per day.

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

    Frontier, at $156, was found to be the cheapest airline from Denver to Washington, D.C. Reagan-National Airport.Alternate airlines to your destination round-trip include American Airlines and JetBlue. These flights start at 40% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Denver to Washington, D.C. Reagan-National Airport are Frontier ($97), Delta ($119), and JetBlue ($121).

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to Washington, D.C. Reagan-National Airport on time: Air Canada (79%), United Airlines (79%), Frontier (69%).

  • What are the cheapest flights from Denver to Washington, D.C. Reagan-National Airport?

    Looking at all options, your cheapest flight can be booked for $95. While the most popular route (Denver Intl - Washington, D.C. Reagan-National) can be booked for $175 on average our data indicates $215 when flying from Denver to Washington, D.C. Reagan-National Airport.

  • Can I find deals for flights from Denver to Reagan-National that include hotel bookings?

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

  • How can I find direct flights from Denver to Reagan-National?

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

  • Can I find deals for business class flights from Denver to Reagan-National?

    Yes. Cheapflights offers flight deals from Denver to Reagan-National 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. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. Reagan-National Airport (average of $278). Flying from Denver to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). 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
Arlington
Alexandria
Woodbridge
Fairfax
Tysons
Springfield
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Falls Church
Laurel
Easton
Herndon
Bowie
Towson
National Harbor
Oxon Hill
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.

Alternative routes for Denver to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Baltimore flights
Denver to Dulles Intl flights
Colorado Springs to Baltimore flights
Colorado Springs to Dulles Intl flights
Colorado Springs to Reagan-National flights
Aspen to Reagan-National flights
Grand Junction to Dulles Intl flights
Aspen to Dulles Intl flights
Grand Junction to Baltimore flights
Vail to Baltimore flights
Vail to Dulles Intl flights
Montrose to Dulles Intl flights
Durango to Baltimore flights
Grand Junction to Reagan-National flights
Vail to Reagan-National flights
Durango to Dulles Intl flights
Durango to Reagan-National flights
Montrose to Baltimore flights
Gunnison to Baltimore flights
Gunnison to Dulles Intl flights
Hayden to Baltimore flights
Hayden to Dulles Intl flights
Hayden to Reagan-National flights
Montrose to Reagan-National flights
Aspen to Baltimore flights

Top 5 airlines flying from Denver to Reagan-National

Discover the top 5 airlines that operate flights from Denver to Reagan-National. 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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$244FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$166Average$314FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$293FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$219Average$428FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$276Average$384FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.