Find flights
Deals
When to book
FAQs

Cheap flights from Washington, D.C. to Denver from £129

WAS — DEN
9 Oct — 16 Oct1
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 35 days in advance, depart on a Monday or Tuesday 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

Fri 2/1022:34 -
Nonstop3h 56m
Sun 4/1006:00 -
Nonstop3h 25m
Deal found 8/9£250
Tue 10/1116:00 -
1 stop5h 15m
Mon 16/1111:20 -
1 stop4h 40m
Deal found 7/9£258
Thu 29/1019:35 -
1 stop5h 05m
Fri 6/1112:15 -
1 stop6h 40m
Deal found 8/9£261
Thu 1/1006:35 -
Nonstop3h 53m
Sun 4/1006:00 -
Nonstop3h 25m
Deal found 7/9£265
Wed 30/911:00 -
1 stop7h 11m
Wed 7/1013:25 -
1 stop8h 19m
Deal found 8/9£265
Thu 8/1006:35 -
Nonstop3h 53m
Thu 15/1006:00 -
Nonstop3h 25m
Deal found 9/9£267
Tue 29/912:00 -
2 stops7h 20m
Fri 2/1005:50 -
1 stop6h 10m
Deal found 8/9£269
Sun 27/906:35 -
Nonstop3h 53m
Sun 4/1006:00 -
Nonstop3h 25m
Deal found 8/9£273
Thu 19/1114:40 -
1 stop6h 15m
Sun 22/1114:40 -
1 stop6h 15m
Deal found 8/9£275
Fri 9/1022:34 -
Nonstop3h 54m
Mon 12/1023:52 -
Nonstop3h 25m
Deal found 4/9£275
Tue 29/1221:00 -
1 stop5h 35m
Thu 31/1214:25 -
2 stops6h 55m
Deal found 8/9£275
Mon 23/1106:00 -
1 stop5h 41m
Thu 26/1106:25 -
1 stop5h 24m
Deal found 7/9£280

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

Round-trip from

£250

One-way from

£129

Popular in

June

Cheapest in

January

Average price

£269

Good one-way deal

£568 or less
United Airlines
  • United Airlines
  • 12/10-18/10
  • Nonstop
  • 7h 21m total
  • Washington, D.C. to Denver
Search Deals
Southwest
  • Southwest
  • 10/11-31/12
  • 1 total stop
  • 5h 15m total
  • Washington, D.C. to Denver
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Denver Intl.
Search Deals

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

Fri 16/10

19:35-22:40

1 stop5h 05m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£129

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Sat 24/10

15:40-21:10

1 stop7h 30m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£133

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Sun 28/2

16:15-21:05

1 stop6h 50m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£133

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Mon 19/10

18:50-23:15

1 stop6h 25m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£133

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Tue 10/11

11:00-17:25

2 stops8h 25m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£137

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Tue 2/2

06:10-12:40

2 stops8h 30m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£137

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Wed 27/1

06:10-12:40

2 stops8h 30m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£137

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Thu 29/10

07:25-13:10

2 stops7h 45m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£137

Washington, D.C.Denver

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

DCADEN

Washington, D.C. Reagan-National

Tue 22/12

21:00-00:35

1 stop5h 35m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£151

Washington, D.C.Denver

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

IADDEN

Washington, D.C. Dulles Intl

Wed 28/10

07:02-16:59

1 stop11h 57m

Denver Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£155

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 45 resultsSorted by cheapest first
1
2
3
...
5

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, January is the cheapest month in which you can book a flight from Washington, D.C. to Denver (average of £186). Flying from Washington, D.C. to Denver in June is currently the most expensive (average of £335). 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 22% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Washington, D.C. to Denver

The most flights from WAS to DEN are scheduled on a Monday (38 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (12 on average).

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 £339 in October.
The cheapest return price found within the last 5 days was £250 on United Airlines (2 Oct–4 Oct).

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 161 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 11% 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 34 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 16 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 04m. United Airlines provides one of the quickest options available for as low as £250. 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 (87%), United Airlines (78%), Copa Airlines( 75%).

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Denver (average of £186). Flying from Washington, D.C. to Denver in June is currently the most expensive (average of £335). 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

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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

When you search for this flight from Washington, D.C. to Denver, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Denver?

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 Denver from Washington, D.C..

Can Cheapflights find flights from Washington, D.C. to Denver with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington, D.C. to Denver, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Denver become cheaper?

Yes, Cheapflights offers price alerts on Washington, D.C. to Denver flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.