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Cheap flights from Washington, D.C. to Denver from £123

WAS — DEN
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. to Denver Intl are usually found in January or February, booked 62 days in advance, depart on a Thursday or Monday and return on a Monday

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

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C. to Denver

Mon 7/1216:00 -
1 stop5h 15m
Tue 8/1211:20 -
1 stop4h 35m
Deal found 27/10£239
Wed 18/1106:10 -
1 stop5h 50m
Wed 18/1111:20 -
1 stop4h 40m
Deal found 27/10£242
Thu 3/1213:35 -
1 stop7h 50m
Mon 7/1208:20 -
1 stop6h 35m
Deal found 30/10£246
Sat 5/1212:15 -
1 stop6h 05m
Mon 7/1214:25 -
2 stops6h 55m
Deal found 29/10£249
Wed 2/1209:00 -
2 stops7h 55m
Mon 7/1214:25 -
2 stops6h 55m
Deal found 29/10£253
Wed 2/1216:00 -
1 stop5h 15m
Fri 4/1211:20 -
1 stop4h 35m
Deal found 27/10£254
Tue 1/1215:35 -
1 stop5h 50m
Fri 4/1211:20 -
1 stop4h 35m
Deal found 26/10£257
Fri 4/1216:00 -
1 stop5h 15m
Mon 7/1214:25 -
2 stops6h 55m
Deal found 29/10£261
Sun 6/1216:25 -
1 stop5h 40m
Wed 9/1211:20 -
1 stop4h 35m
Deal found 26/10£265
Thu 17/1206:00 -
1 stop13h 14m
Sun 27/1206:35 -
1 stop7h 03m
Deal found 27/10£268
Thu 17/1206:00 -
1 stop13h 14m
Sat 26/1200:55 -
1 stop5h 58m
Deal found 27/10£268
Sat 5/1216:21 -
Nonstop4h 04m
Mon 14/1216:11 -
Nonstop3h 13m
Deal found 30/10£283

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

Round-trip from

£222

One-way from

£123

Popular in

June

Cheapest in

January

Average price

£310

Good round-trip deal

£225 or less

Good one-way deal

£574 or less
Alaska Airlines
  • Alaska Airlines
  • 1/2-4/2
  • 2 total stops
  • 46h 07m total
  • Washington, D.C. to Denver
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Southwest
  • Southwest
  • 18/11-31/12
  • 1 total stop
  • 5h 50m total
  • Washington, D.C. to Denver
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£24 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Denver Intl.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Denver Intl.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Wed 10/2

06:10-12:15

2 stops8h 05m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£146

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Sat 12/12

06:10-12:10

2 stops8h 00m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£152

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Fri 20/11

15:55-20:00

1 stop6h 05m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£164
Fastest return journey

Washington, D.C.Denver

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

IADDEN

Washington, D.C. Dulles Intl

Mon 21/12

19:30-21:33

Nonstop4h 03m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£167

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Wed 11/11

16:00-19:15

1 stop5h 15m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£168

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Sat 14/11

12:35-17:10

1 stop6h 35m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£172

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Sat 6/3

06:05-12:40

2 stops8h 35m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£175

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Tue 22/12

14:45-19:50

2 stops7h 05m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£175

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Mon 14/12

09:00-14:55

2 stops7h 55m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£175

Washington, D.C.Denver

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

IADDEN

Washington, D.C. Dulles Intl

Tue 22/12

22:12-00:15

Nonstop4h 03m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£208

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 43 resultsSorted by cheapest first
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Best time to book a flight from Washington, D.C. to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Washington, D.C. with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Denver

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Denver (average of £192). Flying from Washington, D.C. to Denver in June is currently the most expensive (average of £338). 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 WAS to DEN?

It’s typically best to fly out from Washington, D.C. to Denver at midday. Doing so could potentially save you 42% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Airfare is typical for this route at the moment.
Washington, D.C. to Denver flights typically cost between £208 and £337 in February.
The cheapest return price found within the last 5 days was £222 on Alaska Airlines (1 Feb–4 Feb).

How often are flights from Washington, D.C. to Denver delayed?

About 12% of weekly flights between Washington, D.C. and Denver have experienced delays in the past year, with the average delay time being 159 minutes.

What is the most punctual flight time for Washington, D.C. to Denver flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Denver flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Denver, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

  • What airport do you fly into for flights to Denver from Washington, D.C.?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Denver from Washington, D.C.. Booking flights from Washington, D.C. to Denver Intl (DEN) should be relatively easy as there are 8 daily inbound flights from Washington, D.C. from 0 different airlines.

  • How long is the flight from Washington, D.C. to Denver?

    A quick flight from Washington, D.C. to Denver can take about 4h 09m. Alaska Airlines provides one of the quickest options available for as low as £283. Airlines will cover a distance of 1448 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Washington, D.C. to Denver?

    Before booking your flight to Denver from Washington, D.C., check out the most reliable airlines to get you to your destination on time: Ethiopian Air (93%), United Airlines (85%), Copa Airlines( 83%).

  • Can I find deals for flights from Washington, D.C. to Denver that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Denver.

  • Can I find deals for business class flights from Washington, D.C. to Denver?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Denver 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 Washington, D.C. to Denver?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Denver (average of £192). Flying from Washington, D.C. to Denver in June is currently the most expensive (average of £338). 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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