Cheap Flights from Washington (IAD) to Denver (DEN)

Airlines that fly from Washington Dulles International Airport (IAD) to Denver International Airport (DEN)

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Cheap Flights from Washington (IAD) to Denver (DEN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$406 Return, found 6 days ago
AU$406
Return
found 6 days ago
Select Delta flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$406 found 6 days ago
United
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$407 Return, found 6 days ago
AU$407
Return
found 6 days ago
Select United flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$407 found 6 days ago
Delta
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$439 Return, found 6 days ago
AU$439
Return
found 6 days ago
Select Delta flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$439 found 6 days ago
Delta
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$469 Return, found 6 days ago
AU$469
Return
found 6 days ago
Select Delta flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$469 found 6 days ago
United
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$470 Return, found 6 days ago
AU$470
Return
found 6 days ago
Select United flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$470 found 6 days ago
United
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$485 Return, found 6 days ago
AU$485
Return
found 6 days ago
Select United flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$485 found 6 days ago
United
Fri., 17 Jan. - Sun., 19 Jan.
IAD
Washington
DEN
Denver
AU$488 Return, found 1 day ago
AU$488
Return
found 1 day ago
Select United flight, departing Fri., 17 Jan. from Washington to Denver, returning Sun., 19 Jan., priced at AU$488 found 1 day ago
American Airlines
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$493 Return, found 6 days ago
AU$493
Return
found 6 days ago
Select American Airlines flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$493 found 6 days ago
United
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$500 Return, found 6 days ago
AU$500
Return
found 6 days ago
Select United flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$500 found 6 days ago
Delta
Tue., 17 Dec. - Thu., 19 Dec.
IAD
Washington
DEN
Denver
AU$501 Return, found 6 days ago
AU$501
Return
found 6 days ago
Select Delta flight, departing Tue., 17 Dec. from Washington to Denver, returning Thu., 19 Dec., priced at AU$501 found 6 days ago
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Flight from Washington to Denver route information
Origin airport
Washington Dulles Intl.
Destination airport
Denver Intl.
Return price
AU$406
Distance
2318 km

Your quick guide to flights from Washington to Denver

Pick up great flights from Washington to Denver

With Expedia, you have your pick of 22 flights a day with 20 airlines covering flights from Washington to Denver. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Washington to Denver that take around 0 hours.

Find cheap flights from Washington to Denver

From the great flight deals with prices currently ranging from AU$406 to AU$501, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Washington to Denver around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Denver is normally in December.

Reasons to book your flight from Washington to Denver with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Washington to Denver across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Denver right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Washington Dulles Intl. Airport (IAD) to Denver Airport?
If you’re travelling from IAD to Denver Airport, round-trip flights start from AU$406. This figure is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don’t hang around. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAD to DIA airport?
We get that things come up unexpectedly, so we’ve made it as easy as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to Denver Intl. Airport (DEN) 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 Dulles Intl. Airport to DEN flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Dulles Intl. Airport to DEN?
The flight distance between IAD and DEN is 2 300 kilometres. Listen to some music or bury your nose in a book and the trip will whiz by.
Which airlines fly direct from IAD to Denver Airport?
A popular airline that operates on the route from Dulles Intl. Airport to Denver Airport is United Airlines (UA). It offers 182 flights every month. Another airline operating on this route is Southwest Airlines (WN). You’ll have 56 flights a month to select from.
Are IAD to DEN flight tickets cheaper when they're purchased at the last minute?
Tickets from Washington Dulles Intl. Airport (IAD) to DIA airport are available up to 12 months before departure on Expedia. And although you may occasionally nab a fantastic last-minute deal, it’s never something you can count on. Also, booking your flights ahead of time means you’ll have more choices — and you can avoid getting trapped in the dreaded middle seat! We regularly update our fares to bring you the best bargains, so check back often for all the latest specials.
Washington Airports

Washington

Ronald Reagan Washington National to Denver
AU$363.10

Baltimore

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