WAS - DEN

$164 Find Cheap Flights from Washington, D.C. to Denver - Compare and Save

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Everything you should know

Cheapest round-trip
$297
Typical prices: $273-$507
American Airlines
Sun 2/18Thu 2/22
DCA - DEN • 1 stop
Cheapest non-stop
$298
Typical prices: $273-$509
Frontier
Wed 12/5Wed 12/12
DCA - DEN • Non-stop
Nonstop flights
You can fly direct with United Airlines and Frontier. Average duration is 4h 11m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 14% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 36% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $288 (round-trip)
Shortest trip • 4h 58m (one-way)
Insights
Insights
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We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Washington, D.C. to Denver (WAS-DEN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Denver

Mon, Dec 28 - Thu, Jan 7
Frontier Logo
8:51 pm - 9:54 amIAD  Washington, D.C. Dulles Intl-DEN Denver Intl
15h 03m1 stop Las Vegas Harry Reid Intl
Frontier Logo
6:19 am - 8:52 pmDEN  Denver Intl-IAD Washington, D.C. Dulles Intl
12h 33m1 stop Orlando
$297Frontier
Mon, Dec 28 - Fri, Jan 8
Frontier Logo
8:51 pm - 9:54 amIAD  Washington, D.C. Dulles Intl-DEN Denver Intl
15h 03m1 stop Las Vegas Harry Reid Intl
Frontier Logo
10:34 am - 8:52 pmDEN  Denver Intl-IAD Washington, D.C. Dulles Intl
8h 18m1 stop Orlando
$297Frontier
Thu, Feb 18 - Mon, Feb 22
American Airlines Logo
10:00 am - 3:37 pmDCA  Washington, D.C. Reagan-National-DEN Denver Intl
7h 37m1 stop Dallas/Fort Worth
American Airlines Logo
7:22 am - 4:36 pmDEN  Denver Intl-DCA Washington, D.C. Reagan-National
7h 14m1 stop Chicago O'Hare Intl
$297American Airlines
Fri, Feb 19 - Fri, Feb 26
American Airlines Logo
12:59 pm - 5:20 pmDCA  Washington, D.C. Reagan-National-DEN Denver Intl
6h 21m1 stop Chicago O'Hare Intl
American Airlines Logo
12:51 am - 9:53 amDEN  Denver Intl-DCA Washington, D.C. Reagan-National
7h 02m1 stop Charlotte Douglas
$297American Airlines
Wed, Jan 13 - Mon, Jan 18
JetBlue Logo
6:00 am - 12:00 pmDCA  Washington, D.C. Reagan-National-DEN Denver Intl
8h 00m1 stop New York John F Kennedy Intl
JetBlue Logo
12:50 pm - 10:55 pmDEN  Denver Intl-DCA Washington, D.C. Reagan-National
8h 05m1 stop New York John F Kennedy Intl
$307JetBlue
Thu, Dec 10 - Sun, Dec 13
JetBlue Logo
6:15 am - 12:17 pmDCA  Washington, D.C. Reagan-National-DEN Denver Intl
8h 02m1 stop New York John F Kennedy Intl
JetBlue Logo
11:30 pm - 7:51 amDEN  Denver Intl-DCA Washington, D.C. Reagan-National
6h 21m1 stop Boston Logan Intl
$308JetBlue
Wed, Jan 6 - Mon, Jan 11
Multiple Airlines Logo
5:30 pm - 10:49 amIAD  Washington, D.C. Dulles Intl-DEN Denver Intl
19h 19m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
10:41 am - 9:42 pmDEN  Denver Intl-IAD Washington, D.C. Dulles Intl
9h 01m1 stop Fort Lauderdale
$323Multiple Airlines
Thu, Dec 3 - Mon, Dec 7
Southwest Logo
1:35 pm - 7:25 pmDCA  Washington, D.C. Reagan-National-DEN Denver Intl
7h 50m1 stop Columbus
Southwest Logo
8:20 am - 4:55 pmDEN  Denver Intl-DCA Washington, D.C. Reagan-National
6h 35m1 stop Kansas City
$329Southwest
Thu, Dec 3 - Mon, Dec 7
Southwest Logo
3:35 pm - 7:25 pmDCA  Washington, D.C. Reagan-National-DEN Denver Intl
5h 50m1 stop Oklahoma City Will Rogers World
Southwest Logo
2:25 pm - 11:20 pmDEN  Denver Intl-DCA Washington, D.C. Reagan-National
6h 55m2 stops Cincinnati Cinci./N. Kentucky Chicago Midway
$334Southwest
Wed, Feb 24 - Sat, Feb 27
Multiple Airlines Logo
7:00 am - 3:16 pmIAD  Washington, D.C. Dulles Intl-DEN Denver Intl
10h 16m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
10:34 am - 12:19 amDEN  Denver Intl-IAD Washington, D.C. Dulles Intl
11h 45m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson
$337Multiple Airlines
Booking Insights

Price, demand and travel trends for Washington, D.C. to Denver flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Washington, D.C. to Denver typically range from $273 to $507. The lowest price found in the past 5 days was $297, on American Airlines.

What is the cheapest Washington, D.C. to Denver flight route?

Washington, D.C. Reagan-National Airport (DCA) to Denver (DEN) is the cheapest Washington, D.C. to Denver route, averaging $330 round-trip. Other Washington, D.C. to Denver routes average $439, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Denver?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Washington, D.C. to Denver. It’s 3% cheaper than the average day, while Sunday is the most expensive, with prices 17% higher.

What’s the cheapest month to fly from Washington, D.C. to Denver?

•February is the cheapest month to fly from Washington, D.C. to Denver at $243 round-trip.
•June ($444) and July ($428) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 82% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Washington, D.C. to Denver are cheapest 7 weeks before departure. Booking in this window typically costs about 36% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Washington, D.C. to Denver

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier, United Airlines 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

Blane Bachelor

Expert on Southwest

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.

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.

Key details for Washington, D.C. to Denver flights

Low season

October

Cheapest flight

$164
Beat the crowds with an average 17% drop in travelers.
The most popular month to fly with an average 12% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Denver

When to book flights from Washington, D.C. to Denver

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. to Denver flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Washington, D.C. to Denver?

    These are the earliest and latest flight times available from Washington, D.C. to Denver:

    • Earliest: departs at 6:10 am and lands at 10:21 am
    • Latest: departs at 10:15 pm and lands at 2:26 am.

    The flight takes about 4h 11m.

  • What cabin classes can I book on flights from Washington, D.C. to Denver?

    Four cabin classes are available on flights from Washington, D.C. to Denver:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

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

    A nonstop flight from Washington, D.C. to Denver takes 4h 11m, covering 1,471 miles.

  • Do I need a passport to fly from Washington, D.C. to Denver?

    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.

  • How much should I expect to pay for a Washington, D.C. to Denver flight?

    Round-trip flights from Washington, D.C. to Denver range from $273 to $507, with an average of $377 over the past 12 months. Anything below $273 counts as a good deal.

  • How expensive are last-minute Washington, D.C. to Denver flights?

    Last-minute fares on this route (booked within two weeks of departure) run 30% above the $377 route average. Book 7 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Washington, D.C. to Denver?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $288 round-trip via Orlando (MCO), compared to $379 for nonstop.

  • How does on-time performance compare across airlines flying from Washington, D.C. to Denver?

    United Airlines is slightly above the route average for timely arrivals, while Southwest has a lower on-time arrival rate. On-time arrival rates on Washington, D.C. to Denver flights are:

    • United Airlines: 88% on time
    • Southwest: 86% on time
    • Frontier: 85% on time

    Overall, flights on this route are punctual 88% of the time on average.

  • What is the standard checked-bag allowance on flights from Washington, D.C. to Denver?

    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.

  • How are flight departures from Washington, D.C. to Denver spread across the day?

    Afternoon is the busiest departure period on Washington, D.C. to Denver flights, with 45% of flights leaving in that window. Morning departures account for 28%, evening flights for 18%, and night flights for 9%.

  • Have flight prices from Washington, D.C. to Denver 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 $297 to $2,433. That means the highest observed fare was about 8x higher than the lowest one.

  • Which airlines offer Wi-Fi on Washington, D.C. to Denver flights?

    JetBlue is the only airline on the Washington, D.C. to Denver route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Washington, D.C. to Denver looking right now?

    One-way fares from Washington, D.C. to Denver are currently lower than usual. Average one-way flight prices are about $179, which is 27% below the typical average for this route.

  • What car rental options are available at Denver Intl Airport (DEN)?

    Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates averaging $56 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Ace
    • Europcar
    • NU Car
    • Hertz

  • Which airports can I use when flying from Washington, D.C. to Denver?

    Flights from Washington, D.C. to Denver may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Denver Intl (DEN).

  • What time of day has the fewest delays on flights from Washington, D.C. to Denver?

    Morning flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed from Washington, D.C. to Denver?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Washington, D.C. to Denver route, 12% of flights were delayed in the past 3 months, with delays averaging 2h 25m.

  • Which airports do connecting flights from Washington, D.C. to Denver pass through?

    One-stop flights from Washington, D.C. to Denver most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 41% of one-stop connections
    • Boston Logan Intl (BOS) - 12% of one-stop connections
    • Charlotte Douglas (CLT) - 9% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. to Denver?

    Yes. Flexible dates can save you up to 18% on flights from Washington, D.C. to Denver. Wednesday is the cheapest departure day at $368 round-trip on average, while Sunday is the most expensive at $444, a difference of $76.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Washington, D.C. to Denver?

    2 airlines operate flights between Washington, D.C. and Denver. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Frontier

  • How much time can I save by choosing a different layover airport from Washington, D.C. to Denver?

    Flying via Omaha Eppley Airfield (OMA) gives the shortest average 1-stop total travel time at 4h 58m, compared with 5h 15m via Milwaukee-Mitchell (MKE) and 5h 25m via Kansas City (MCI).

  • What is the time difference between Washington, D.C. and Denver?

    Denver is 2 hours behind Washington, D.C. (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Denver?

    Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Washington, D.C. to Denver flights?

    Among airlines operating Washington, D.C. to Denver 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.

  • Which airlines include bags at no extra cost on Washington, D.C. to Denver 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 always check the fare details before booking.

  • How can I get information at the Denver International Airport?

    Ambassador Volunteers provide information and assistance at Denver International Airport (DEN). They are easy to spot because they wear a purple vest and black hat. Airport Information Booths are also located on the landside of Jeppesen Terminal and airside in the center cores of Gates A, B and C.

  • Can I rent a car at Denver Airport (DEN)?

    Yes, more than 10 major rental car companies are located on airport property at Denver International Airport (DEN). Each onsite agency provides shuttle service from Jeppesen Terminal. Rental car shuttles pick up travelers on Jeppesen Terminal Level 5, Island 4, outside doors 505–513 and 504–512.

  • Does Denver Airport have a prayer room?

    Yes, DEN has an Interfaith Chapel as well as an Islamic Masjid. It is in the Jeppesen Terminal on Level 5 East near Baggage Claim 2/3. It is open seven days a week from 6 a.m. to 8 p.m.

  • Does Baltimore/Washington International Airport have a children’s play area?

    BWI has an expansive children’s play area. The Airplay Zone is in the D/E Connector, a two-minute walk after you clear Security Checkpoint D/E.

  • What facilities does Dulles International Airport have for children and families?

    IAD has secure nursing rooms in the terminal and near the A, B, C and D gates. The "Funway" children's play area is near Gate B70. It includes a supersonic jet and hyper-wing aircraft for children to climb aboard, along with free aviation-inspired crossword puzzles and word searches.

  • What is there to do while waiting for a flight at BWI?

    Travelers can work out at the ROAM Fitness gym at BWI.

Your guide to booking Washington, D.C. to Denver flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $368, about $76 less than Sunday fares (17% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 7 weeks before you fly. On this route, that window historically saves about 36% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. to Denver trip for February. Fares historically average $243 round-trip in that month - typically $201 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 88% of United Airlines flights from Washington, D.C. to Denver arrived on time, slightly above the route average of 88%. When flights on this route arrive late, they're delayed by an average of 2h 25m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Orlando Airport (MCO) can be cheaper than flying direct. The cheapest layover option averages $288 round-trip on this route - about $91 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Denver Intl Airport.

    • The Westin Denver International Airport
  • Flying from Dulles International Airport (IAD) with a pet? Use one of the airport’s designated pet relief areas before boarding. Landside, they’re near Door 16, Door 1 and Baggage Claim on the Arrivals Level. After security, you’ll find additional areas near Gate A32 and Gate D1. The areas are clearly marked and stocked with waste bags and receptacles.
  • If you want to unwind after a long day of travel, stop by A Massage in Denver International Airport for a quick treatment. It offers foot massages and chair massages focused on relieving upper-back and neck tension.
  • If you're driving to Ronald Reagan International Airport (DCA), you can leave your car in DCA's Economy Lot for long-term parking. Spaces are usually in high demand, so reserve your parking spot before you travel.
  • If you're deaf or hearing-impaired and need a TTY public telephone, look throughout the terminal and concourses at Denver International Airport (DEN).

Prefer to fly direct from Washington, D.C. to Denver?

 
Find which airlines fly direct from Washington, D.C. to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

More options for your flight from Washington, D.C. to Denver

Complete your trip to Denver with a hotel stay or car rental