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Cheap flights from Denver to Washington, D.C. from £73

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
16 7月 — 23 7月1
1 adult

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 11 7月 2025.

Round-trip from

£127

One-way from

£73

Popular in

December

Cheapest in

September

Average price

£191
Southwest
  • Southwest
  • 19/8-23/8
  • 1 total stop
  • 11h 45m total
  • Denver to Washington, D.C.
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Southwest
  • Southwest
  • 12/8
  • Nonstop
  • 3h 20m 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 July 2025
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Find flight deals from Denver to Washington, D.C.

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 11 7月 2025.

週二 19/808:20DEN - IAD
Nonstop3h 20mSouthwest
週六 23/815:50IAD - DEN
1 stop8h 25mSouthwest
Deal found 10/7£127
週五 5/910:00DEN - DCA
1 stop5h 35mSouthwest
週一 8/906:10DCA - DEN
1 stop5h 50mSouthwest
Deal found 10/7£127
週六 23/817:00DEN - IAD
1 stop5h 32mUnited Airlines
週六 30/810:25IAD - DEN
Nonstop3h 44mUnited Airlines
Deal found 9/7£132
週六 23/823:54DEN - DCA
1 stop7h 27mUnited Airlines
週六 30/816:24DCA - DEN
Nonstop3h 56mUnited Airlines
Deal found 9/7£132
週日 24/823:59DEN - IAD
1 stop7h 54mAmerican Airlines
週日 31/806:27IAD - DEN
1 stop7h 24mAmerican Airlines
Deal found 10/7£132
週日 24/806:45DEN - DCA
Nonstop3h 26mFrontier
週日 31/818:00DCA - DEN
Nonstop4h 05mFrontier
Deal found 10/7£158
週三 6/800:55DEN - IAD
1 stop6h 04mDelta
週一 11/817:25IAD - DEN
1 stop8h 50mDelta
Deal found 10/7£174
週三 6/800:55DEN - DCA
1 stop5h 41mDelta
週四 14/819:38DCA - DEN
1 stop6h 37mDelta
Deal found 10/7£174

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 11 7月 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 - IAD

DENIAD

Denver Intl

週二 19/8

08:20-13:40

Nonstop3h 20m

Washington, D.C. Dulles Intl

週六 23/8

15:50-22:15

1 stop8h 25m

£127

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週五 5/9

10:00-17:35

1 stop5h 35m

Washington, D.C. Reagan-National

週一 8/9

06:10-10:00

1 stop5h 50m

£127

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

週六 23/8

17:00-00:32

1 stop5h 32m

Washington, D.C. Dulles Intl

週六 30/8

10:25-12:09

Nonstop3h 44m

£132

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

週日 24/8

23:59-09:53

1 stop7h 54m

Washington, D.C. Dulles Intl

週日 31/8

06:27-11:51

1 stop7h 24m

£132

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週四 28/8

14:45-22:43

1 stop5h 58m

Washington, D.C. Reagan-National

週一 1/9

16:24-18:20

Nonstop3h 56m

£146

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週日 24/8

06:45-12:11

Nonstop3h 26m

Washington, D.C. Reagan-National

週日 31/8

18:00-20:05

Nonstop4h 05m

£158

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

週三 6/8

06:00-14:42

1 stop6h 42m

Washington, D.C. Dulles Intl

週三 6/8

19:04-23:28

1 stop6h 24m

£174

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週三 6/8

00:55-08:36

1 stop5h 41m

Washington, D.C. Reagan-National

週日 10/8

19:37-00:20

1 stop6h 43m

£174

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

週二 12/8

08:20-13:40

Nonstop3h 20m

£73

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週五 5/9

09:40-15:06

Nonstop3h 26m

£74

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 23 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 27 June 2025.

Booking 65 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, January is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of £599). Flying from Denver to Washington, D.C. in July is currently the most expensive (average of £947). 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 11 7月 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Washington, D.C. as you normally would.

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 11 7月 2025.

The most flights from DEN to WAS are scheduled on a Thursday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 11 7月 2025.
Check out reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from Denver to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very Good
4,250 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,951 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,565 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,846 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 33 outbound flights to Washington, D.C. per day.

  • What are the cheapest airlines flying from Denver to Washington, D.C. round-trip?

    Flying on Southwest is currently your cheapest option to Washington, D.C., with prices starting at £127. Additional return tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at £132 and £132, respectively. Southwest is currently priced 34% below the average price you’ll pay for this route.

  • 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 (£73), United Airlines (£74), and Allegiant Air (£82).

  • 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: Sun Country Air (100%), Avianca (93%), United Airlines (74%).

  • 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 £599). Flying from Denver to Washington, D.C. in July is currently the most expensive (average of £947). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Arlington
Woodbridge
College Park
Laurel
Tysons

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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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