€110 Cheap Flights Denver to Washington (DEN-IAD)

View €110 flight on Sat, 16 May 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Washington Dulles Intl. Airport (IAD)

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Cheap flights from Denver to Washington (DEN-IAD)

Prices were available within the past 7 days and start at €110 for one-way flights and €289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€289 Return, found 2 days ago
€289
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €289 found 2 days ago
American Airlines
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€297 Return, found 2 days ago
€297
Return
found 2 days ago
Select American Airlines flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €297 found 2 days ago
American Airlines
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€306 Return, found 2 days ago
€306
Return
found 2 days ago
Select American Airlines flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €306 found 2 days ago
Delta
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€319 Return, found 2 days ago
€319
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €319 found 2 days ago
Delta
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€336 Return, found 2 days ago
€336
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €336 found 2 days ago
United
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€349 Return, found 2 days ago
€349
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €349 found 2 days ago
United
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€352 Return, found 2 days ago
€352
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €352 found 2 days ago
Delta
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€353 Return, found 2 days ago
€353
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €353 found 2 days ago
Delta
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€358 Return, found 2 days ago
€358
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €358 found 2 days ago
Delta
Sat, 2 May - Sat, 9 May
DEN
Denver
IAD
Washington
€366 Return, found 2 days ago
€366
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Denver to Washington, returning Sat, 9 May, priced at €366 found 2 days ago

Frequently asked questions

How much is a flight from Denver Airport to Washington Dulles Intl. Airport (IAD)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between Denver Intl. Airport (DEN) and Washington Dulles Intl. Airport (IAD) was €289. Cheap tickets don't hang around forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DEN to Washington Dulles Intl. Airport (IAD)?
We understand that life can throw the odd curveball, 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 Denver Intl. Airport (DEN) to Washington Dulles Intl. Airport (IAD) 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 Denver Airport to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DIA airport to Dulles Intl. Airport?
The flight distance from Denver Airport to Dulles Intl. Airport is 2,300 kilometres. Bring a drink, a snack and a few good podcasts. Keep yourself occupied and time will zip by.
Which airlines fly direct from DEN to Dulles Intl. Airport?
United Airlines (UA) is a popular choice. It offers 182 flights from Denver Intl. Airport (DEN) to IAD each month. If you're eager for more options, check out the ticket prices from Southwest Airlines (WN). This airlines operates 56 flights every month between these airports.
Are DEN to IAD flight tickets cheaper when they're purchased at the last minute?
It is possible to score a fantastic last-minute deal from Denver Airport to Dulles Intl. Airport, but it's also possible to miss out altogether! As many airlines advertise prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can rest assured you're always seeing the latest offers.

Travel information

Origin airport
Denver Intl.
Destination airport
Washington Dulles Intl.
Return price
€288
Distance
2318 km
Average flight time
5 hours 27 mins

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