DEN - DCA

$94 Find Cheap Flights from Denver to Reagan Washington National Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Reagan-National departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Reagan-National Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$196
Typical prices: $365-$220
Frontier
Sat 5/9Sat 5/16
DEN - DCA • Non-stop
Cheapest one-way
$94
Typical prices: $118-$271
Frontier
Sat 5/16
DEN - DCA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Use the West Security Checkpoint at DEN for speed.
DCA is easily accessible via the metro line.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $196 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with Frontier and United Airlines. Average duration is 3h 29m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Reagan-National!
Flight Deals
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Flight Deals

Cheap Flights from Denver to Reagan-National (DEN-DCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Reagan-National that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Reagan-National

Sat, May 9 - Sat, May 16
Frontier Logo
4:27 pm - 9:58 pm
DEN
-
DCA
3h 31mnonstop
Frontier Logo
6:00 pm - 8:14 pm
DCA
-
DEN
4h 14mnonstop
$196Frontier
Sat, May 9 - Fri, May 15
Frontier Logo
11:28 am - 4:59 pm
DEN
-
DCA
3h 31mnonstop
Frontier Logo
6:00 pm - 8:14 pm
DCA
-
DEN
4h 14mnonstop
$198Frontier
Mon, May 11 - Sat, May 16
Frontier Logo
7:31 am - 12:59 pm
DEN
-
DCA
3h 28mnonstop
Frontier Logo
7:00 am - 9:07 am
DCA
-
DEN
4h 07mnonstop
$199Frontier
Tue, May 12 - Sat, May 16
Frontier Logo
4:27 pm - 9:58 pm
DEN
-
DCA
3h 31mnonstop
Frontier Logo
6:00 pm - 8:14 pm
DCA
-
DEN
4h 14mnonstop
$200Frontier
Sat, May 9 - Fri, May 15
Frontier Logo
7:31 am - 12:59 pm
DEN
-
DCA
3h 28mnonstop
Frontier Logo
6:00 pm - 8:14 pm
DCA
-
DEN
4h 14mnonstop
$206Frontier
Sat, May 9 - Wed, May 13
Frontier Logo
11:28 am - 4:59 pm
DEN
-
DCA
3h 31mnonstop
Frontier Logo
7:00 am - 9:07 am
DCA
-
DEN
4h 07mnonstop
$207Frontier
Mon, May 11 - Wed, May 20
Frontier Logo
7:31 am - 12:59 pm
DEN
-
DCA
3h 28mnonstop
Frontier Logo
7:00 am - 9:07 am
DCA
-
DEN
4h 07mnonstop
$209Frontier
Wed, May 20 - Mon, May 25
Frontier Logo
7:31 am - 12:59 pm
DEN
-
DCA
3h 28mnonstop
Frontier Logo
7:00 am - 9:07 am
DCA
-
DEN
4h 07mnonstop
$211Frontier
Sat, May 30 - Mon, Jun 1
Frontier Logo
7:31 am - 12:59 pm
DEN
-
DCA
3h 28mnonstop
Frontier Logo
7:00 am - 9:07 am
DCA
-
DEN
4h 07mnonstop
$214Frontier
Wed, May 20 - Mon, May 25
Frontier Logo
7:31 am - 12:59 pm
DEN
-
DCA
3h 28mnonstop
Frontier Logo
7:00 am - 9:07 am
DCA
-
DEN
4h 07mnonstop
$215Frontier
Booking Insights

KAYAK's insights & trends for Denver to Reagan-National flights

Get data-powered insights and trends into flights from Denver to Reagan-National to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to Washington, D.C. Reagan-National Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Washington, D.C. Reagan-National Airport departing in May.

What’s the cheapest day of the week to fly from Denver to Reagan Washington National Airport?

The average price of all round-trip flights from Denver to Washington, D.C. Reagan-National Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Reagan Washington National Airport on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Denver to Reagan Washington National Airport. For your return ticket, we recommend flying on a Saturday and avoiding Thursdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Washington, D.C. Reagan-National Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Washington, D.C. Reagan-National Airport is February, where tickets cost $181 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $334 and $304 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Washington, D.C. Reagan-National Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Washington, D.C. Reagan-National Airport, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Reagan-National

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on DCA

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.

Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$94
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Denver to Reagan Washington National Airport

When to book flights from Denver to Reagan-National

Are your dates flexible? Find out the best times to travel from Denver to Reagan-National based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Reagan Washington National Airport flights

  • Are there pet relief stations at DEN?

    Yes. DEN provides animal relief stations that feature artificial turf, a sink, soap, doggy waist bags, trash cans, and a drainage system. These stations can be found on the A, C, and C Concourses right in the center, near the US mail. The relief station in the Jeppesen Terminal is on the west side, just outside door 200.

  • Does DEN have a military lounge?

    Yes. If you are an active-duty or retired member of the US military, or a family member, you can take advantage of the USO military lounge free of charge at the Denver International Airport. This lounge is located on Level 4 of Concourse A, airside. Benefits of relaxing in this lounge include soda, snacks, coffee, water, comfy seating, games, Wi-Fi, and flight time boards.

  • If I want to stay near DEN the night before my flight to Washington, where can I find a hotel?

    The Westin Denver International Airport hotel is connected to the Jeppesen Terminal at the Denver International Airport. You can also get free shuttle service to your terminal if your plane is not leaving from the Jeppesen Terminal. Other amenities of this refined, comfortable hotel include a pool, a bar, a fitness center, a restaurant, room service, and much more.

  • Does DCA provide facilities for nursing moms?

    Yes. There are two private, comfortable, quiet nursing rooms in DCA where traveling moms can get out of the hustle and bustle of the terminals in order to breastfeed in private or pump. Each nursing room features rocking chairs, changing tables, and power outlets. You can find these rooms in Terminal A, just before this security checkpoint and in the National Hall, landside.

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

    In the last 3 days, the lowest price for a flight from Denver to Washington, D.C. Reagan-National Airport was $94 for a one-way ticket and $196 for a round-trip.

  • Do I need a passport to fly between Denver and Reagan Washington National Airport?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Denver to Reagan Washington National Airport?

    When flying out of Denver you will be using Denver Intl. You will be landing at Reagan Washington National Airport, also known as Washington, D.C. Reagan-National.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Reagan Washington National Airport?

    JetBlue, American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Denver to Reagan Washington National Airport flight route.

  • Which aircraft models fly most regularly from Denver to Reagan Washington National Airport?

    The Airbus A320neo is the aircraft model that flies most regularly on the Denver to Reagan Washington National Airport flight route.

  • Which airline alliances offer flights from Denver to Reagan Washington National Airport?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and Reagan Washington National Airport, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Denver to Reagan Washington National Airport?

    There are nonstop flights from Denver to Reagan Washington National Airport on a daily basis.

  • Which is the best airline for flights from Denver to Washington, D.C., Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Denver to Washington, D.C. are Southwest and Delta. With an average price for the route of $364 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $433 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Denver to Reagan Washington National Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Reagan Washington National Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Reagan Washington National Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reagan Washington National Airport with an airline and back to Denver with another airline. Booking your flights between Denver and DCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Reagan Washington National Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reagan Washington National Airport from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Washington, D.C. Reagan-National Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $135 or less one-way and $241 or less round-trip.
  • Located on the eastern side of Denver, the Denver International Airport (DEN) is a hub for United Airlines, Southwest, Frontier, and many other smaller and regional airlines. The Ronald Reagan Washington National Airport (DCA) is located just outside Washington DC, in Virginia. This airport serves as a hub for American Airlines.
  • United Airlines and Frontier are among the carriers that operate non-stop flights between DEN and DCA. Delta, United Airlines, and American Airlines operate one-stop flights between DEN and DCA. Layover cities include Detroit (DTW), New York (LGA), New York (EWR), Chicago (ORD), and Houston (IAH).
  • If you need to pass the time at the Denver International Airport as you wait for your flight to Washington, stroll around the airport to enjoy the many artworks on display, including sculptures, murals, paintings, and exterior landscapes. DEN features pieces of its permanent collection as well as rotating exhibitions. The mural in the Jeppesen Terminal on level 5 is particularly striking.
  • There is an Interfaith Chapel located in DCA on Concourse B at the south end, across from the Delta Airlines gates and behind the Dunkin' Donuts. You can use this quiet space as a place of reflection, prayer, or meditation. There are also scheduled Protestant and Catholic services led by the clergy, as well as Jewish and Islamic prayer times that are not led by any clergy.
  • When you land at DCA, consider going to the Observation Area to relax and watch the planes land and take off. In Terminal B and Terminal C, the Observation Areas are on terraces. The Observation Area in Terminal A provides rocking chairs where you can sit to enjoy watching the airplanes.

Prefer to fly direct from Denver to Reagan Washington National Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Washington, D.C. Reagan-National.
Find which airlines fly direct from Denver Intl Airport to Washington, D.C. Reagan-National Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Washington, D.C. Reagan-National

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,United Airlines

Frontier,United Airlines

Wednesday

Frontier,United Airlines

Frontier,United Airlines

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

Direct returns

Washington, D.C. Reagan-National to Denver Intl

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,United Airlines

Frontier,United Airlines

Wednesday

Frontier,United Airlines

Frontier,United Airlines

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Denver to Reagan-National

 
See real verified KAYAK customer reviews for airlines flying from Denver to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Reagan-National? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4314 reviews
7.0Food
8.6Crew
8.0Comfort
8.1Boarding
7.5Entertainment
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Everything you need to know for your flight from Denver to Reagan-National

Information on your arrival and departure airports