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Cheap flights from Denver to Washington, D.C. from £77

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
30 Mar — 6 Apr1
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 25 March 2025.

Round-trip from

£152

One-way from

£77

Popular in

December

Cheapest in

April

Average price

£221
United Airlines
  • United Airlines
  • 23/4-29/4
  • Nonstop
  • 7h 23m total
  • Denver to Washington, D.C.
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Southwest
  • Southwest
  • 3/5
  • Nonstop
  • 3h 25m total
  • Denver to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£14 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in March 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 25 March 2025.

Wed 23/406:00DEN - IAD
Nonstop3h 25mUnited Airlines
Tue 29/408:30IAD - DEN
Nonstop3h 58mUnited Airlines
Deal found 24/3£152
Fri 2/517:20DEN - IAD
Nonstop3h 20mSouthwest
Tue 13/507:50IAD - DEN
Nonstop3h 50mSouthwest
Deal found 25/3£168
Wed 23/422:34DEN - DCA
1 stop7h 51mJetBlue
Wed 30/406:15DCA - DEN
1 stop7h 02mJetBlue
Deal found 25/3£168
Thu 17/418:25DEN - IAD
1 stop14h 58mSun Country Air
Sun 20/407:30IAD - DEN
1 stop11h 45mSun Country Air
Deal found 25/3£182
Fri 25/400:55DEN - IAD
1 stop8h 28mDelta
Sat 3/506:00IAD - DEN
1 stop8h 22mDelta
Deal found 23/3£183
Fri 25/400:55DEN - DCA
1 stop8h 30mDelta
Sat 3/508:00DCA - DEN
1 stop6h 22mDelta
Deal found 23/3£183
Wed 23/406:00DEN - DCA
1 stop6h 26mUnited Airlines
Tue 29/416:15DCA - DEN
Nonstop4h 05mUnited Airlines
Deal found 24/3£188
Mon 14/407:50DEN - DCA
1 stop4h 30mSouthwest
Wed 16/407:30DCA - DEN
2 stops7h 30mSouthwest
Deal found 24/3£208
Thu 8/500:30DEN - IAD
1 stop14h 06mFrontier
Fri 16/517:26IAD - DEN
1 stop8h 03mFrontier
Deal found 25/3£217
Mon 7/423:59DEN - IAD
1 stop6h 39mAmerican Airlines
Tue 8/414:12IAD - DEN
2 stops9h 46mAmerican Airlines
Deal found 24/3£249
Mon 7/414:00DEN - DCA
1 stop6h 15mAmerican Airlines
Tue 8/410:00DCA - DEN
2 stops9h 40mAmerican Airlines
Deal found 24/3£249
Tue 29/414:39DEN - IAD
2 stops23h 21mAlaska Airlines
Sat 3/506:30IAD - DEN
1 stop19h 29mAlaska Airlines
Deal found 25/3£319

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 25 March 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

Wed 23/4

06:00-11:25

Nonstop3h 25m

Washington, D.C. Dulles Intl

Wed 30/4

17:30-19:33

Nonstop4h 03m

£152

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Fri 2/5

17:20-22:40

Nonstop3h 20m

Washington, D.C. Dulles Intl

Tue 13/5

07:50-09:40

Nonstop3h 50m

£168

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 23/4

22:34-08:25

1 stop7h 51m

Washington, D.C. Reagan-National

Wed 30/4

06:15-11:17

1 stop7h 02m

£168

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 17/4

18:25-11:23

1 stop14h 58m

Washington, D.C. Dulles Intl

Sun 20/4

07:30-17:15

1 stop11h 45m

£182

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Fri 25/4

00:55-11:23

1 stop8h 28m

Washington, D.C. Dulles Intl

Sat 3/5

06:00-12:22

1 stop8h 22m

£183

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 25/4

00:55-11:25

1 stop8h 30m

Washington, D.C. Reagan-National

Sat 3/5

08:00-12:22

1 stop6h 22m

£183

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 23/4

06:00-14:26

1 stop6h 26m

Washington, D.C. Reagan-National

Tue 29/4

16:15-18:20

Nonstop4h 05m

£188

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 14/4

07:50-14:20

1 stop4h 30m

Washington, D.C. Reagan-National

Wed 16/4

07:30-13:00

2 stops7h 30m

£208

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 8/5

00:30-16:36

1 stop14h 06m

Washington, D.C. Dulles Intl

Fri 16/5

17:26-23:29

1 stop8h 03m

£217

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mon 7/4

23:59-08:38

1 stop6h 39m

Washington, D.C. Dulles Intl

Tue 8/4

14:12-21:58

2 stops9h 46m

£249

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 26 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 21 March 2025.

Booking 49 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 25 March 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 25 March 2025.

The most flights from DEN to WAS are scheduled on a Tuesday (28 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 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 25 March 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines 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.
Southwest
8.1
Very Good
4,274 reviews
Check prices

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very Good
4,274 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very Good
9,789 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very Good
7,890 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,330 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,605 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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

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

    Flying on United Airlines is currently your cheapest option to Washington, D.C., with prices starting at £152. Additional return tickets that might be worth considering are offered by Southwest and JetBlue, with the lowest prices starting at £168 and £168, respectively. United Airlines is currently priced 23% 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 United Airlines (£77), Southwest (£84), and Sun Country Air (£91).

  • 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: Copa Airlines (91%), United Airlines (90%), Lufthansa (90%).

  • 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

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Book flights to Denver if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
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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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