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Cheap flights from Denver to Washington, D.C. from £88

DEN — WAS
19 Sep — 26 Sep1
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.

Tue 15/918:38 -
1 stop9h 42m
Tue 22/916:36 -
1 stop7h 13m
Deal found 19/8£169
Tue 15/911:23 -
Nonstop3h 36m
Tue 22/907:00 -
Nonstop4h 03m
Deal found 19/8£172
Sat 10/1023:52 -
Nonstop3h 25m
Sun 11/1006:35 -
Nonstop3h 53m
Deal found 15/8£231
Tue 15/908:18 -
1 stop6h 06m
Tue 22/905:00 -
1 stop7h 00m
Deal found 19/8£234
Fri 25/906:00 -
Nonstop3h 25m
Mon 5/1006:35 -
Nonstop3h 53m
Deal found 18/8£235
Wed 9/909:35 -
Nonstop3h 28m
Mon 14/916:20 -
Nonstop4h 02m
Deal found 17/8£235
Tue 29/908:40 -
1 stop7h 25m
Thu 1/1019:35 -
1 stop5h 05m
Deal found 17/8£246
Mon 23/1119:29 -
1 stop14h 12m
Fri 27/1112:26 -
1 stop21h 28m
Deal found 18/8£247
Thu 10/906:30 -
1 stop8h 00m
Mon 14/917:12 -
1 stop8h 02m
Deal found 17/8£250
Fri 9/1016:18 -
1 stop5h 26m
Sun 11/1006:10 -
1 stop5h 22m
Deal found 17/8£250
Wed 30/913:55 -
2 stops7h 10m
Tue 6/1011:40 -
1 stop5h 05m
Deal found 18/8£250
Fri 9/1023:52 -
Nonstop3h 25m
Sun 18/1006:35 -
Nonstop3h 53m
Deal found 17/8£252

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

Round-trip from

£169

One-way from

£88

Popular in

June

Cheapest in

January

Average price

£251

Good one-way deal

£133 or less
Frontier
  • Frontier
  • 15/9-22/9
  • 2 total stops
  • 16h 55m total
  • Denver to Washington, D.C.
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Frontier
  • Frontier
  • 21/9
  • 1 total stop
  • 16h 15m total
  • Denver to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£51 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Price to beat on a one-way flight from Denver Intl to Washington, D.C. (WAS).
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Cheapflights Fare Finder

 
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 Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Thu 22/10

17:56-23:25

Nonstop3h 29m

Washington, D.C. Dulles Intl

Tue 27/10

17:20-19:30

Nonstop4h 10m

£235

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Sat 19/9

08:00-13:30

Nonstop3h 30m

Washington, D.C. Dulles Intl

Mon 21/9

06:30-08:24

Nonstop3h 54m

£235

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Thu 1/10

23:52-05:17

Nonstop3h 25m

Washington, D.C. Dulles Intl

Sun 4/10

22:34-00:30

Nonstop3h 56m

£235

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Tue 26/1

15:45-23:02

1 stop5h 17m

Washington, D.C. Dulles Intl

Sun 31/1

19:50-00:23

1 stop6h 33m

£250

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Fri 9/10

16:18-23:44

1 stop5h 26m

Washington, D.C. Reagan-National

Sun 11/10

06:10-09:32

1 stop5h 22m

£250

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Mon 16/11

14:25-23:20

2 stops6h 55m

Washington, D.C. Reagan-National

Wed 18/11

16:00-19:15

1 stop5h 15m

£250

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Thu 1/10

10:35-19:50

2 stops7h 15m

Washington, D.C. Reagan-National

Thu 8/10

18:50-23:10

1 stop6h 20m

£253

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Wed 16/9

11:10-20:55

1 stop7h 45m

Washington, D.C. Reagan-National

Wed 23/9

12:00-17:20

2 stops7h 20m

£253

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Sat 12/9

11:10-20:50

2 stops7h 40m

Washington, D.C. Reagan-National

Mon 14/9

18:50-22:00

1 stop5h 10m

£253

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Wed 21/10

06:35-14:30

2 stops5h 55m

Washington, D.C. Reagan-National

Sat 24/10

06:15-11:40

2 stops7h 25m

£257

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 44 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

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, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of £175). Flying from Denver to Washington, D.C. in June is currently the most expensive (average of £350). 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?

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.

The most flights from DEN to WAS are scheduled on a Wednesday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

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

Airfare is typical for this route at the moment.
Denver to Washington, D.C. flights typically cost between £160 and £281 in September.
The cheapest return price found within the last 5 days was £169 on Frontier (15 Sept–22 Sept).

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

Booking 84 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

  • 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 20 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 29m. 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: Avianca (93%), ITA Airways (92%), Brussels Airlines (84%).

  • 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 £175). Flying from Denver to Washington, D.C. in June is currently the most expensive (average of £350). 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
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield

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How does Cheapflights help users find flights from Denver to Washington, D.C.?

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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