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Cheap flights from Denver to Washington, D.C. from £124

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
6 Aug — 13 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Denver Intl to Washington, D.C. are usually found in January or February, booked 37 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap 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 7 July 2026.

Wed 5/806:13
DEN
-
IAD
Nonstop3h 28m
United Airlines
Sun 9/822:23
IAD
-
DEN
Nonstop4h 07m
United Airlines
Deal found 7/7£231
Fri 7/815:15
DEN
-
DCA
2 stops6h 40m
Southwest
Tue 11/812:00
DCA
-
DEN
2 stops7h 20m
Southwest
Deal found 7/7£235
Thu 3/923:37
DEN
-
DCA
1 stop8h 33m
JetBlue
Mon 7/906:20
DCA
-
DEN
1 stop8h 37m
JetBlue
Deal found 6/7£236
Sat 26/907:15
DEN
-
DCA
1 stop4h 50m
Southwest
Tue 29/916:50
DCA
-
DEN
1 stop5h 00m
Southwest
Deal found 3/7£240
Tue 15/906:30
DEN
-
DCA
1 stop5h 30m
Southwest
Tue 22/916:50
DCA
-
DEN
1 stop5h 00m
Southwest
Deal found 3/7£243
Thu 5/1118:09
DEN
-
IAD
1 stop14h 57m
Sun Country Air
Sun 8/1112:50
IAD
-
DEN
1 stop23h 50m
Sun Country Air
Deal found 6/7£243
Thu 17/914:10
DEN
-
DCA
1 stop5h 45m
Southwest
Wed 23/916:50
DCA
-
DEN
1 stop5h 00m
Southwest
Deal found 2/7£244
Thu 3/906:00
DEN
-
IAD
1 stop6h 05m
Delta
Sun 6/908:28
IAD
-
DEN
1 stop8h 24m
Delta
Deal found 3/7£246
Thu 22/1000:59
DEN
-
DCA
1 stop5h 38m
Delta
Mon 26/1006:05
DCA
-
DEN
1 stop7h 59m
Delta
Deal found 7/7£246
Sat 25/707:30
DEN
-
DCA
Nonstop3h 21m
Frontier
Mon 27/707:00
DCA
-
DEN
Nonstop4h 01m
Frontier
Deal found 2/7£248
Sat 1/805:15
DEN
-
DCA
1 stop8h 00m
Southwest
Sat 8/813:20
DCA
-
DEN
1 stop7h 20m
Southwest
Deal found 2/7£249
Thu 22/1010:30
DEN
-
DCA
2 stops7h 20m
Southwest
Mon 26/1013:05
DCA
-
DEN
1 stop7h 20m
Southwest
Deal found 5/7£250

Find 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 7 July 2026.

Round-trip from

£231

One-way from

£124

Popular in

June

Cheapest in

January

Average price

£239
United Airlines
  • United Airlines
  • 5/8-9/8
  • Nonstop
  • 7h 35m total
  • Denver to Washington, D.C.
Search Deals
Delta
  • Delta
  • 28/7
  • 1 total stop
  • 6h 06m total
  • Denver to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 7 July 2026.
Use the filters below to find and compare flights from Denver to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 5/11

18:09-11:06

1 stop14h 57m

Washington, D.C. Dulles Intl

Sun 8/11

12:50-10:40

1 stop23h 50m

£243

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 15/10

06:40-17:33

1 stop8h 53m

Washington, D.C. Dulles Intl

Tue 20/10

06:00-09:34

1 stop5h 34m

£246

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 24/9

06:00-14:12

1 stop6h 12m

Washington, D.C. Dulles Intl

Mon 28/9

11:10-17:22

1 stop8h 12m

£246

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Fri 2/10

07:15-16:17

1 stop7h 02m

Washington, D.C. Dulles Intl

Sun 4/10

10:15-16:17

1 stop8h 02m

£246

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 29/7

11:00-20:59

1 stop7h 59m

Washington, D.C. Reagan-National

Fri 31/7

19:37-00:23

1 stop6h 46m

£246

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 5/11

14:26-23:45

1 stop7h 19m

Washington, D.C. Reagan-National

Sun 8/11

06:05-12:04

1 stop7h 59m

£246

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 24/9

13:15-20:35

1 stop5h 20m

Washington, D.C. Reagan-National

Sun 27/9

06:10-10:48

1 stop6h 38m

£246

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 24/7

00:59-08:40

1 stop5h 41m

Washington, D.C. Reagan-National

Mon 27/7

19:37-00:23

1 stop6h 46m

£246

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Sat 25/7

06:13-11:41

Nonstop3h 28m

Washington, D.C. Dulles Intl

Sat 1/8

22:23-00:30

Nonstop4h 07m

£254

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sat 17/10

05:25-15:55

1 stop8h 30m

Washington, D.C. Reagan-National

Sat 17/10

17:55-22:05

1 stop6h 10m

£265

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 47 resultsSorted by cheapest first
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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.

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

Currently, January is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of £43). Flying from Denver to Washington, D.C. in February is currently the most expensive (average of £526). 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 7 July 2026.

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 afternoon, which can drop the price by up to 88% versus a flight at midday.

Weekly flight availability from Denver to Washington, D.C.

Explore weekly flight availability from Denver to Washington, D.C.. 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 7 July 2026.

The most flights from DEN to WAS are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).

How much does it cost for a return flight from Denver to Washington, D.C.?

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

Booking 39 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.

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 31 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 9h 06m. 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 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 (96%), Avianca (95%), Ethiopian Air (95%).

  • 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, January is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of £43). Flying from Denver to Washington, D.C. in February is currently the most expensive (average of £526). 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
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Alexandria

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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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