S$155 Cheap Flights from Washington to Denver

View S$155 flight on Mon, 26 Jan, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Denver Intl. Airport (DEN)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Washington to Denver (DCA-DEN)

Prices were available within the past 7 days and start at S$155 for one-way flights and S$309 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$309 Return, found 6 days ago
S$309
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$309 found 6 days ago
American Airlines
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$362 Return, found 6 days ago
S$362
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$362 found 6 days ago
Delta
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$375 Return, found 6 days ago
S$375
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$375 found 6 days ago
Delta
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$389 Return, found 6 days ago
S$389
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$389 found 6 days ago
Delta
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$400 Return, found 6 days ago
S$400
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$400 found 6 days ago
Delta
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$413 Return, found 6 days ago
S$413
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$413 found 6 days ago
American Airlines
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$414 Return, found 6 days ago
S$414
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$414 found 6 days ago
American Airlines
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$442 Return, found 6 days ago
S$442
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$442 found 6 days ago
Delta
Wed, 10 Dec - Sat, 13 Dec
DCA
Washington
DEN
Denver
S$453 Return, found 6 days ago
S$453
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Dec from Washington to Denver, returning Sat, 13 Dec, priced at S$453 found 6 days ago

Black Friday Sale

Save up to 50% on select hotels
Book now

Find the cheapest month to fly from Washington (DCA) to Denver (DEN)

January is typically the cheapest month to fly

From S$94 - S$277 per traveller.
Washington to Denver route information
Origin airport
Ronald Reagan Washington National
Destination airport
Denver Intl.
Return price
S$308
Distance
2355 km
Average flight time
2 hours 52 mins

Flights from Washington to Denver

There are several airlines that operate frequent flights from Washington D.C. (DCA) to Denver (DEN) including

The earliest flight leaves Ronald Reagan Washington National Airport at 07:00 and arrives at Denver Intl. Airport at 08:50. The last flight of the day departs Washington D.C. at 18:00 and arrives at Denver at 20:11.

The flight distance from Washington D.C. to Denver is about 2381 km, the shortest flight is 03 hours 50 minutes with .

Expedia lets you search across the largest number of airlines and Denver flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Washington Denver flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Washington to Denver trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Denver flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Washington to Denver with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from DCA to Denver Intl. Airport (DEN)?
Round-trip flights from National Airport to Denver Intl. Airport (DEN) start from S$309. This is based on fares available within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DCA to DIA airport?
We understand that your situation can change unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Ronald Reagan Washington National Airport (DCA) to Denver Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for DCA to DIA airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DCA to Denver Intl. Airport (DEN)?
The flying distance between DCA (DCA) and DIA airport (DEN) is 2,400 kilometres. Squeeze in a nap or make a start on the latest bestseller and the journey will zip by.
Which airlines fly direct from National Airport to Denver Intl. Airport (DEN)?
There are a few airlines that fly straight from Ronald Reagan Washington National Airport (DCA) to Denver Intl. Airport (DEN). Frontier Airlines (F9) is a top choice, offering 91 flights each month. After some more options? Check out the airfares with United Airlines (UA). This carrier offers 30 monthly flights between these destinations.
Are Ronald Reagan Washington National Airport (DCA) to Denver Airport flight tickets cheaper when they're purchased at the last minute?
Flight tickets from National Airport to DIA airport are available up to 12 months prior to departure on Expedia. And although you may occasionally score a great last-minute deal, it's not something you should bank on. Also, booking your flights well in advance means you'll have more options — and you can avoid being wedged in the dreaded middle seat! We're constantly updating our fares to bring you the biggest bargains, so keep checking in for all the latest specials.

Explore a world of travel with Expedia

*Available to Expedia members.