$86 Find Cheap Flights from Denver to Washington, D.C. - Compare and Save
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 Washington, D.C. departing on 11/11. 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.
Round-trip
1 adult
Economy
0 bags
Round-trip
1 adult, Economy, 0 bags
...and more
Save 21% or more on flights. Compare deals from all over the web.
Never overpay with our price tracking tools.
Filter searches by price, airline and more to find your best flights.
Everything you should know
Cheapest round-trip
$231
Typical prices: $231-$493
Frontier
Fri 10/12Fri 10/26
DEN - IAD • 1 stop
Cheapest non-stop
$232
Typical prices: $231-$496
Frontier
Mon 10/1Thu 10/4
DEN - DCA • Non-stop
Advice from real travelers
AI-powered summary based on content written by KAYAK users. AI can make mistakes.
Frontier Premium Bundle adds legroom and priority boarding for $20 over Economy.
Southwest includes a free carry-on; DCA is the most convenient airport for downtown.
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals
Cheap Flights from Denver to Washington, D.C. (DEN-WAS)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Washington, D.C. 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.
Round-trip
One-way
Last minute
Direct
Recent round-trip flight deals from Denver to Washington, D.C.
Price, demand and travel trends for Denver to Washington, D.C. flights
Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Denver to Washington, D.C. with more confidence.
Prices
Airlines
Layovers
More
How much is a round-trip flight from Denver to Washington, D.C.?
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. departing in october.
Round-trip flights from Denver to Washington, D.C. start at $231. Prices are typical for this route right now, with typical round-trip fares ranging from $231 to $493. The lowest price found in the past 5 days was $231 on Frontier.
What is the cheapest Denver to Washington, D.C. flight route?
KAYAK tracks online flight deals over the last 12 months and analyzes pricing trends to identify the best available fares.
Denver (DEN) to Washington, D.C. Reagan-National Airport (DCA) is the cheapest Denver to Washington, D.C. route, averaging $308 round-trip. Other Denver to Washington, D.C. routes average $423, based on KAYAK data over the past 12 months.
What's the cheapest day of the week to fly from Denver to Washington, D.C.?
Thursday is the cheapest day of the week to fly from Denver to Washington, D.C., it is 6% cheaper than the average day. Monday is the most expensive day with flight prices 35% higher than average. Based on deals found by KAYAK users in the last 12 months.
What is the cheapest month to fly from Denver to Washington, D.C.?
KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from Denver to Washington, D.C., removes the top 0.1% to account for outliers and then takes the median of all values for each month.
February is the cheapest month to fly from Denver to Washington, D.C. at $242 round-trip.
June ($458) and July ($447) are the most expensive months.
The price difference between flying in the cheapest and most expensive months is 89% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.
When are prices from Denver to Washington, D.C. the cheapest?
Flights from Denver to Washington, D.C. are cheapest 5 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.
What is the cheapest airline to fly from Denver to Washington, D.C.?
Frontier ($231) and Southwest ($243) are the cheapest airlines to fly round-trip from Denver to Washington, D.C. according to KAYAK data over the last 5 days.
Which airline offers the most nonstop flights between Denver and Washington, D.C.?
United Airlines and Frontier offer the most frequent nonstop flights from Denver to Washington, D.C., at 60 and 19 flights per week respectively. Based on KAYAK flight data over the last 3 months.
What is the most popular layover airport when flying from Denver to Washington, D.C.?
KAYAK data for 1-stop round-trips over the past 3 months. Only counts itineraries with the same layover on both legs.
Atlanta Hartsfield-Jackson (ATL) is the most popular layover for the Denver to Washington, D.C. route. 44% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via ATL.
What is the cheapest layover airport when flying from Denver to Washington, D.C.?
Flights via Boston Logan Intl (BOS) offer the most affordable fares, with an average round-trip price of $293. Based on KAYAK data over the past 3 months.
Which route, including a layover, takes the shortest amount of time from Denver to Washington, D.C.?
Lambert-St Louis (STL) offers the shortest 1-stop connection from Denver to Washington, D.C. at 5h 06m one-way, 1h 42m longer than the 3h 24m direct flight. Based on KAYAK data over the past 3 months.
When flying from Denver to Washington, D.C. which airport offers the shortest layover?
Lambert-St Louis (STL) had the shortest average connection time for Denver to Washington, D.C. layovers at 176 minutes over the past 3 months.
How many nonstop flights run daily between Denver and Washington, D.C.?
There are 10 to 12 flights per day from Denver to Washington, D.C., about 79 flights per week. Monday has the most departures, with 15% of weekly flights.
What time of day do most flights depart from Denver to Washington, D.C.?
Based on KAYAK flight schedules for the upcoming 3 months.
Most nonstop flights from Denver to Washington, D.C. depart in the morning, accounting for 46% of nonstop departures. Around 5 flights are scheduled in that window over the next three months.
Expert advice for your flight from Denver to Washington, D.C.
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
Stefanie Waldek
Expert on Frontier, United Airlines, DCA and IAD
Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.
Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.
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.
Key details for Denver to Washington, D.C. flights
Low season
August
High season
November
Cheapest flight
$86
Most popular time to fly with an average 5% increase in price.
Flight from Denver to Baltimore
When to book flights from Denver to Washington, D.C.
Are your dates flexible? Find out the best times to travel from Denver to Washington, D.C. 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.
Flights from Denver to Washington, D.C.: the best tips from KAYAK users' own experiences
Insights shared by verified travelers who flew the route from Denver to Washington, D.C.
Check in desk immediately when you come in the doors on the left of door 215. Get TSA touchless before the flight—the line is so much shorter.
NesrinFlew with Southwest-Feb 2026
Get a seat in the very front if you can, otherwise, it is a very slow process.
JasonFlew with United Airlines-Nov 2024
DIA is a large airport. Get there early.
BindulFlew with United Airlines-Feb 2024
There are multiple flights between DEN and IAD everyday, including some wide bodies. Try and get on one of the wide bodies whenever possible.
Your Denver to Washington, D.C. flight questions, answered
Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.
How early should I get to Denver International Airport (DEN)?
The airports have real-time wait time information on their website, so be sure to check that out. However, we recommend arriving 2h before your flight, so you have enough time to go through security and check in. Arriving early also helps you avoid last-minute inconveniences and the unexpected.
Can I rent a car at Dulles International Airport in Washington, DC?
Yes. Consider renting a car upon arrival at IAD to visit some of the city's major attractions for an entertaining holiday trip. You can rent a car from one of the airport's car rental companies, such as Budget, Enterprise, Avis, Hertz, and Alamo. To connect to the car rental facilities, take the free shuttle buses near the Baggage Claim area in the Main Terminal.
Can I travel with my pet?
You can travel with your furry friend from Denver International Airport (DEN) because the airport is animal friendly. It provides designated animal relief areas throughout the airport to ensure that your pet has a comfortable trip. They also offer cleaning materials in the relief areas. We recommend that you keep your pet on a leash or caged. The three airports in Washington D.C. are also pet friendly. You can contact your airline to inquire about their rules and guidelines on traveling with animals since they may vary between airlines.
Which is the best way to connect from Dulles International Airport to the downtown?
Consider taking the Silver Line Metro from IAD to Downtown D.C., which is reliable and inexpensive. Reaching downtown Washington, DC, takes about 45 minutes due to multiple stops. You can also rent a car or taxi to Downtown Washington DC, which takes around 20 minutes.
Are there lounges in Denver International Airport?
Denver International Airport has ensured that you get the best travel experience. The airport is endowed with many lounges, most airline-operated, where you can relax and unwind before you board your flight. Take advantage of the complimentary services and amenities offered by the lounges. You can contact your airline for information on airline lounges.
Can I leave some luggage at Denver International Airport?
Due to rigorous security rules, Denver International Airport does not have luggage storage facilities. If you need to keep your luggage before or after your travel, Stasher can help under some fees depending on the period you'll be leaving it. Stasher is at the airport entrance, close to the car parking lot.
Are there nursing areas at DEN?
The departure airport has ensured nursing mothers have a comfortable and private space for nursing their infants. DEN provides comfortable areas for nursing mothers to care for and breastfeed their young ones. The nursing rooms are centrally located in Concourse A, B, and C.
Can I travel with kids in Washington, DC, from Denver?
Yes. Consider flying with American Airlines, which offers a variety of kid-friendly facilities on flights from Denver to Washington, DC. It has seats with enough legroom to sit comfortably with your kid on your lap. It also gives free snacks and allows some items on the plane, such as kid seats, strollers, booster seats, and bassinets.
Which nearby cities can I get to from Dulles International Airport?
IAD serves Washington, D.C., and some nearby cities you can visit during your stay there. For instance, you can explore Mount Rainier, Friendship Village, Takoma Park, Hyattsville, and Silver Spring through IAD as the departure point.
Where can I park my car at Denver International Airport before flying to Washington, D.C.?
Four airport lots allow you to consider parking your car at DEN airport. These include Garage (East and West), Economy (East and West), Pikes Peak Shuttle, and Valet parking lots. Each lot has its fees depending on the hours of parking. To avoid inconveniences, reserve a parking lot 24 hours before your flight.
Which airlines offer extra legroom and free seat selection on Denver to Washington, D.C. flights?
Among airlines operating Denver to Washington, D.C. flights:
• Frontier: offers free seat selection • United Airlines: offers extra legroom; offers free seat selection
Extra legroom and free seat selection availability depends on fare class and route.
What airlines are available from Denver to Washington, D.C.?
2 airlines operate flights between Denver and Washington, D.C.. The airlines offering nonstop flights on this route include:
• United Airlines • Frontier
Which airports can I use when flying from Denver to Washington, D.C.?
Flights from Denver to Washington, D.C. usually depart from Denver Intl (DEN) and may arrive at several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD).
Which airlines include bags at no extra cost on Denver to Washington, D.C. flights?
Here are some options for this route, based on selected ticket types and cabin classes:
• Frontier: a cabin bag and a checked bag in Economy Class • United Airlines: a cabin bag and a checked bag in Economy Class • JetBlue: a cabin bag in Economy Class class
Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.
What cabin classes can I book on flights from Denver to Washington, D.C.?
Four cabin classes are available on flights from Denver to Washington, D.C.:
• Economy Class • Premium Economy Class • Business Class • First Class
Prices vary by airline.
How much can I save by taking a layover when flying from Denver to Washington, D.C.?
On this route, layover flights are cheaper than nonstop options on average. Layover fares average $293 round-trip via Boston Logan Intl (BOS), compared to $340 for nonstop.
What is the standard checked-bag allowance on flights from Denver to Washington, D.C.?
There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.
Which airports do connecting flights from Denver to Washington, D.C. pass through?
One-stop flights from Denver to Washington, D.C. most commonly connect through:
• Atlanta Hartsfield-Jackson (ATL) - 44% of one-stop connections • Boston Logan Intl (BOS) - 14% of one-stop connections • Chicago O'Hare Intl (ORD) - 6% of one-stop connections • Charlotte Douglas (CLT) - 6% of one-stop connections
Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.
Can I save money by using flexible dates for flights from Denver to Washington, D.C.?
Yes. Being flexible with your travel dates can save you up to 30% on the Denver to Washington, D.C. route. Thursday is the cheapest departure day at $322 round-trip on average, while Monday is the most expensive at $460, a difference of $138. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How are flight departures from Denver to Washington, D.C. spread across the day?
Morning is the busiest departure period on Denver to Washington, D.C. flights, with 46% of flights leaving in that window. Afternoon departures account for 36%, evening flights for 9%, and night flights for 9%.
What popular places can I visit in Washington, D.C.?
Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. on KAYAK.
What are the earliest and latest flights from Denver to Washington, D.C.?
These are the earliest and latest flight times available from Denver to Washington, D.C.:
• Earliest: departs at 6:00 am and lands at 9:24 am • Latest: departs at 11:59 pm and lands at 3:23 am.
The flight takes about 3h 24m.
How expensive are last-minute Denver to Washington, D.C. flights?
Last-minute fares on this route - booked within 2 weeks of departure - run 28% above the route average of $340. Book 5 weeks before departure for the lowest fares.
How long is a flight from Denver to Washington, D.C.?
A nonstop flight from Denver to Washington, D.C. takes 3h 24m, covering 1,471 miles.
Do I need a passport to fly from Denver to Washington, D.C.?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Denver to Washington, D.C. changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $231 to $1,943. That means the highest observed fare was about 8x higher than the lowest one.
How are flight prices from Denver to Washington, D.C. looking right now?
One-way fares from Denver to Washington, D.C. are currently lower than usual. Average one-way flight prices are about $142, which is 37% below the typical average for this route.
How much time can I save by choosing a different layover airport from Denver to Washington, D.C.?
Flying via Lambert-St Louis (STL) gives the shortest average 1-stop total travel time at 5h 06m, compared with 5h 19m via Kansas City (MCI) and 5h 26m via Chicago Midway (MDW).
What is the time difference between Denver and Washington, D.C.?
Washington, D.C. is 2 hours ahead of Denver (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available in Washington, D.C.?
Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into. Near Washington, D.C. Reagan-National Airport (DCA) — daily rates from around $23:
• Sixt • Dollar • Thrifty • Alamo • Budget
Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates from around $24:
• Dollar • Budget • Hertz • Sixt • Thrifty
How much should I expect to pay for a Denver to Washington, D.C. flight?
Round-trip flights from Denver to Washington, D.C. range from $231 to $493, with an average of $340 over the past 12 months. Anything below $231 counts as a good deal.
Which airlines offer Wi-Fi on Denver to Washington, D.C. flights?
JetBlue is the only airline on the Denver to Washington, D.C. route offering in-flight Wi-Fi. Pricing depends on fare class.
Your guide to booking Denver to Washington, D.C. flights
Get tips on when to book, when to fly and what to know before your trip.
If your dates can be flexible, aim for a Thursday departure instead of Monday. On this route, Thursday flights average $322 - about $138 less than Monday (30% savings) based on the last 12 months.
For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 32% versus last-minute pricing (KAYAK booking data, last 12 months).
If you can choose when to travel, plan your Denver to Washington, D.C. trip for February. Fares historically average $242 round-trip in that month - typically $216 less than the most expensive month, which is June (based on the last 12 months).
If you have the time, taking a 1-stop flight through Boston Logan Intl Airport (BOS) can be cheaper than flying direct. The cheapest layover option averages $293 round-trip on this route - about $47 less than direct flights (based on the last 12 months).
Do you want to travel non-stop? The Denver International Airport (DEN) serves a variety of airlines, with some operating direct flights from DEN to Washington D.C. You can check the following airlines and choose one within your budget: Avianca, Frontier, United Airlines, Ethiopian Air, Copa Airlines, Southwest, Lufthansa, Scandinavian Airlines, Air Canada, and Brussels Airlines.
If you want to fly to Washington, D.C., from Denver, consider using Denver International Airport (DEN) as your departure point. This airport is a 25-minute drive from the city center. To connect easily from the city center, consider using the RTD airport railway, which is easier and affordable. Alternatively, you can use a taxi or car rental to connect from the city center to the airport.
Traveling with kids is easy when using Denver International Airport. The airport is parent-friendly and provides designated play areas for kids to get out some energy before your flight. Playing in the play area and riding on the Automatic Guideway Terminal System is a great way to keep your children busy as you do something else.
If you arrive late at Washington Dulles International Airport (IAD), consider booking a nearby hotel before continuing to your final destination in the morning. Consider staying at the Washington Dulles Airport Marriott on the airport's grounds or the Hilton Washington Dulles Airport, which is about 3 miles away and offers a free airport shuttle.
Denver International Airport is accessible to all passengers, including persons with disabilities. You can be sure to have a great travel experience with DEN. They have accessible garages fitted with elevators and restrooms equipped with height-adjustable adult changing tables. You can contact your airline if you need assistance with wheelchair services or any special assistance.
To catch up with your earliest flight from Denver International Airport (DEN), consider staying in one of the hotels close to the airport. For instance, you can book a room at The Westin Denver International Airport on a sleek glass building connected to the airport. If you have luggage, consider using the airport shuttle to connect at the departure terminals.
When flying from Denver to Washington D.C., you can arrive at three airports: Washington Dulles International Airport (IAD), Ronald Reagan Washington National Airport (DCA), and Baltimore Washington International Airport. However, Washington Dulles International Airport serves major cities and is a key hub for major airlines.
Flights through DCA may take longer because of a possible layover. You are likely to find cheaper flights to Dulles (IAD). If you are looking for affordability, you can consider IAD and BWI.
Prefer to fly direct from Denver to Washington, D.C.?
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..
Find which airlines fly direct from Denver Intl Airport to Washington, D.C., which days they fly and book direct flights.
Direct departures
Denver Intl to Washington, D.C.
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. 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
More options for your flight from Denver to Washington, D.C.
Add a hotel or car rental
Airports
Cabin class
Direct Flights
Origins
Other airports
Other destinations
Return flight
Complete your trip to Washington, D.C. with a hotel stay or car rental
Cabin class types available on flights from Denver to Washington, D.C.
Cabin classes available on flights from Denver to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
This site uses cookies and other tracking technologies for essential, functional, analytical, and advertising purposes. By using the site, you agree to our Terms & Conditions and our Privacy Policy.
For more information about how we process your information, please see our Privacy Policy.
We value your privacy
KAYAK and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.
