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Cheap flights from Denver to Washington, D.C. from £68

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 October 2025.

Round-trip from

£129

One-way from

£68

Popular in

December

Cheapest in

August

Average price

£189
Frontier
  • Frontier
  • 28/11-5/12
  • Nonstop
  • 7h 36m total
  • Denver to Washington, D.C.
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United Airlines
  • United Airlines
  • 27/1
  • Nonstop
  • 3h 23m total
  • Denver to Washington, D.C.
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Highest demand for flights based on searches. 6% potential increase in price (£10 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Denver to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Denver to Washington, D.C.
Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.

Fri 28/1107:39DEN - DCA
Nonstop3h 24mFrontier
Fri 5/1218:00DCA - DEN
Nonstop4h 12mFrontier
Deal found 29/10£129
Sat 6/1208:05DEN - IAD
Nonstop3h 18mUnited Airlines
Tue 9/1222:10IAD - DEN
Nonstop4h 05mUnited Airlines
Deal found 30/10£134
Fri 5/1211:50DEN - DCA
1 stop9h 08mJetBlue
Sun 7/1206:00DCA - DEN
1 stop7h 05mJetBlue
Deal found 30/10£140
Wed 3/1209:45DEN - IAD
Nonstop3h 16mUnited Airlines
Mon 15/1217:25IAD - DEN
Nonstop4h 02mUnited Airlines
Deal found 29/10£150
Thu 13/1111:51DEN - DCA
1 stop9h 08mJetBlue
Sun 16/1106:24DCA - DEN
1 stop6h 41mJetBlue
Deal found 29/10£153
Thu 4/1211:50DEN - DCA
1 stop9h 08mJetBlue
Sat 6/1206:00DCA - DEN
1 stop7h 05mJetBlue
Deal found 30/10£157
Wed 3/1210:30DEN - IAD
Nonstop3h 15mSouthwest
Wed 3/1217:45IAD - DEN
Nonstop4h 00mSouthwest
Deal found 30/10£159
Fri 5/1208:05DEN - IAD
Nonstop3h 18mUnited Airlines
Mon 8/1217:25IAD - DEN
Nonstop4h 02mUnited Airlines
Deal found 30/10£165
Fri 5/1200:50DEN - DCA
1 stop6h 20mDelta
Tue 9/1212:37DCA - DEN
1 stop7h 15mDelta
Deal found 30/10£165
Sat 6/1206:00DEN - IAD
1 stop7h 15mSouthwest
Wed 10/1207:40IAD - DEN
Nonstop3h 50mSouthwest
Deal found 30/10£166
Tue 2/1223:59DEN - DCA
1 stop8h 06mJetBlue
Mon 8/1206:00DCA - DEN
1 stop7h 05mJetBlue
Deal found 30/10£168
Wed 3/1207:00DEN - IAD
1 stop5h 40mDelta
Sun 7/1207:01IAD - DEN
1 stop9h 06mDelta
Deal found 29/10£172

Cheapflights Fare Finder

 
Customise your flight search to find flights from Denver to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from Denver to Washington, D.C. that are best for you.

Fly from

Denver

Fly to

Washington, D.C.

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 5/12

11:50-22:58

1 stop9h 08m

Washington, D.C. Reagan-National

Sun 7/12

06:00-11:05

1 stop7h 05m

£140

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 5/12

11:50-22:58

1 stop9h 08m

Washington, D.C. Reagan-National

Tue 9/12

06:00-11:05

1 stop7h 05m

£140

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 3/12

09:45-15:01

Nonstop3h 16m

Washington, D.C. Dulles Intl

Mon 15/12

17:25-19:27

Nonstop4h 02m

£150

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 10/2

07:50-13:17

Nonstop3h 27m

Washington, D.C. Dulles Intl

Fri 13/2

22:25-00:30

Nonstop4h 05m

£150

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 12/2

09:35-14:59

Nonstop3h 24m

Washington, D.C. Reagan-National

Tue 17/2

16:11-18:29

Nonstop4h 18m

£150

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 20/1

00:30-09:16

1 stop6h 46m

Washington, D.C. Dulles Intl

Tue 27/1

15:42-21:16

1 stop7h 34m

£165

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 10/12

16:44-00:12

1 stop5h 28m

Washington, D.C. Dulles Intl

Sat 13/12

11:06-17:27

1 stop8h 21m

£165

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mon 8/12

00:50-09:11

1 stop6h 21m

Washington, D.C. Dulles Intl

Wed 10/12

11:58-15:39

1 stop5h 41m

£165

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 8/12

00:50-09:10

1 stop6h 20m

Washington, D.C. Reagan-National

Wed 10/12

06:29-10:07

1 stop5h 38m

£165

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 20/1

00:30-09:12

1 stop6h 42m

Washington, D.C. Reagan-National

Tue 27/1

11:00-16:44

1 stop7h 44m

£165

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 45 results
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Best time to book a flight from Denver to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Denver with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Washington, D.C.

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

Use this chart to determine the optimal time to book a return flight from Denver to Washington, D.C.. Price data was last updated on 24 October 2025.

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of £61). Flying from Denver to Washington, D.C. in May is currently the most expensive (average of £102). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to WAS?

Find hourly flight availability from Denver to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

When flying from Denver to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 51% versus a flight at midday.

Related info for your journey

Find useful and relevant information for your journey from Denver to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Washington, D.C.?

    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.. 0 airlines have flights from Denver Intl to Washington, D.C. on a regular basis. Booking flights from Denver Intl to Washington, D.C. should not be difficult; the airport handles an average of 13 outbound flights to Washington, D.C. per day.

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

    Departing from Denver to Washington, D.C. will take you 3h 16m. The distance between Denver and Washington, D.C. is about 1448 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapet airlines for a one-way flight from Denver to Washington, D.C. are Southwest (£68), United Airlines (£68), and JetBlue (£80).

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

    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. on time: ITA Airways (100%), Avianca (98%), Ethiopian Air (97%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of £61). Flying from Denver to Washington, D.C. in May is currently the most expensive (average of £102). 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

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park
Tysons

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Deals for Denver to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Denver to Washington, D.C.?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Denver.

Can Cheapflights find flights from Denver to Washington, D.C. with no change fees?

Certainly. Search results for flights to Washington, D.C. from Denver shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Denver to Washington, D.C. become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington, D.C. from Denver today and book when prices fit your budget.

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