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Cheap flights from Denver to Washington, D.C. from £72

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£130

One-way from

£72

Popular in

December

Cheapest in

September

Average price

£205

Good round-trip deal

£1,737 or less
Southwest
  • Southwest
  • 19/8-23/8
  • Nonstop
  • 7h 10m total
  • Denver to Washington, D.C.
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American Airlines
  • American Airlines
  • 15/10
  • 1 total stop
  • 7h 27m total
  • Denver to Washington, D.C.
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Highest demand for flights based on searches. 7% potential increase in price (£11 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 June 2025
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Price to beat on a round-trip flight from Denver Intl to Washington, D.C. (WAS).
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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 13 June 2025.

Tue 19/816:45DEN - IAD
Nonstop3h 20mSouthwest
Sat 23/817:05IAD - DEN
Nonstop3h 50mSouthwest
Deal found 13/6£130
Tue 26/809:40DEN - DCA
Nonstop3h 26mUnited Airlines
Tue 2/916:24DCA - DEN
Nonstop3h 56mUnited Airlines
Deal found 12/6£130
Thu 28/813:00DEN - DCA
1 stop5h 20mSouthwest
Wed 10/916:30DCA - DEN
1 stop5h 20mSouthwest
Deal found 13/6£141
Tue 5/819:17DEN - IAD
Nonstop3h 28mUnited Airlines
Mon 11/817:25IAD - DEN
Nonstop4h 04mUnited Airlines
Deal found 11/6£152
Wed 6/800:55DEN - IAD
1 stop6h 04mDelta
Mon 11/817:25IAD - DEN
1 stop8h 50mDelta
Deal found 13/6£174
Fri 29/822:20DEN - DCA
1 stop8h 19mJetBlue
Fri 12/917:42DCA - DEN
1 stop7h 22mJetBlue
Deal found 13/6£174
Mon 21/700:59DEN - DCA
1 stop8h 01mDelta
Fri 25/718:56DCA - DEN
1 stop6h 32mDelta
Deal found 12/6£182
Wed 25/616:28DEN - DCA
Nonstop3h 31mFrontier
Sun 29/607:00DCA - DEN
Nonstop4h 02mFrontier
Deal found 11/6£205
Mon 24/1111:38DEN - IAD
1 stop22h 06mSun Country Air
Fri 28/1112:26IAD - DEN
1 stop8h 05mSun Country Air
Deal found 12/6£210
Sun 22/617:44DEN - IAD
1 stop18h 39mAllegiant Air
Fri 27/616:54IAD - DEN
1 stop16h 27mAllegiant Air
Deal found 11/6£242
Thu 26/606:00DEN - IAD
1 stop9h 21mFrontier
Thu 26/619:25IAD - DEN
1 stop15h 00mFrontier
Deal found 11/6£246
Thu 28/811:40DEN - DCA
1 stop26h 26mAlaska Airlines
Wed 10/908:59DCA - DEN
2 stops13h 28mAlaska Airlines
Deal found 13/6£266

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 13 June 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

Tue 19/8

16:45-22:05

Nonstop3h 20m

Washington, D.C. Dulles Intl

Sat 23/8

17:05-18:55

Nonstop3h 50m

£130

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 26/8

09:40-15:06

Nonstop3h 26m

Washington, D.C. Reagan-National

Tue 2/9

16:24-18:20

Nonstop3h 56m

£130

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 28/8

13:00-20:20

1 stop5h 20m

Washington, D.C. Reagan-National

Wed 10/9

16:30-19:50

1 stop5h 20m

£141

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 5/8

19:17-00:45

Nonstop3h 28m

Washington, D.C. Dulles Intl

Mon 11/8

17:25-19:29

Nonstop4h 04m

£152

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 6/8

00:55-08:59

1 stop6h 04m

Washington, D.C. Dulles Intl

Mon 11/8

17:25-00:15

1 stop8h 50m

£174

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 29/8

22:20-08:39

1 stop8h 19m

Washington, D.C. Reagan-National

Fri 12/9

17:42-23:04

1 stop7h 22m

£174

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 21/7

00:59-11:00

1 stop8h 01m

Washington, D.C. Reagan-National

Fri 25/7

18:56-23:28

1 stop6h 32m

£182

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 25/6

16:28-21:59

Nonstop3h 31m

Washington, D.C. Reagan-National

Sun 29/6

07:00-09:02

Nonstop4h 02m

£205

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mon 24/11

11:38-11:44

1 stop22h 06m

Washington, D.C. Dulles Intl

Fri 28/11

12:26-18:31

1 stop8h 05m

£210

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 26/6

06:00-17:21

1 stop9h 21m

Washington, D.C. Dulles Intl

Thu 26/6

19:25-08:25

1 stop15h 00m

£246

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 31 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 9 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, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of £565). Flying from Denver to Washington, D.C. in July is currently the most expensive (average of £946). 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 13 June 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 13 June 2025.

The most flights from DEN to WAS are scheduled on a Wednesday (33 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (18 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 13 June 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Denver to Washington, D.C. by reading reviews from past customers. 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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,496 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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

  • How popular is this Denver to Washington, D.C. flight route?

    This flight path from Denver Intl to Washington, D.C. was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 £130. Additional return tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at £130 and £174, respectively. Southwest is currently priced 32% 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 American Airlines (£72), United Airlines (£73), and Southwest (£73).

  • 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: United Airlines (70%), Frontier (70%), Southwest (69%).

  • 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 £565). Flying from Denver to Washington, D.C. in July is currently the most expensive (average of £946). 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
Arlington
Woodbridge
Hanover
Oxon Hill
College Park
Laurel
Tysons

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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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