CA $136 Cheap Flights from Denver (DEN) to Washington (IAD)

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

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

Prices were available within the past 7 days and start at CA $136 for one-way flights and CA $300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Delta
Delta
American Airlines
American Airlines
Delta
American Airlines
American Airlines
American Airlines
United

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

April is typically the cheapest month to fly

From CA $166 - CA $510 per traveller.

Graph displaying average flight prices per month

Flight from Denver to Washington (DEN - IAD) route information
Origin airport
Denver Intl.
Destination airport
Washington Dulles Intl.
Roundtrip price
CA $299
Distance
2318 km
Average flight time
5 hours 22 mins

Denver to Chantilly Flights

The easy way to book your flights from Denver to Washington 

With Expedia, it’s simple to find and book flights to Washington from Denver whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are Avianca, Southwest Airlines, Copa Airlines, Brussels Airlines, Lufthansa, United Airlines, Ethiopian Airlines nonstop flights to Washington Dulles Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Denver to Washington today, tomorrow, or this week.  

 

Save dollars with cheap flights from Denver Intl., DEN to Washington Dulles Intl., IAD 

Sort your search results by price to find great deals on your flight from Denver to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Denver currently is just CA $300 rising to CA $383.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Washington  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Washington from Denver 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Washington with Expedia today.

Frequently asked questions

How much is a flight from Denver Airport to Dulles Intl. Airport?
If you're planning on travelling from Denver Airport to IAD, round-trip flights start from CA $300. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book now 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 DIA airport to IAD?
Most flights can be cancelled online, but whether or not you incur a fee depends on your airline. If you do need to cancel your vacation, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from DEN to Dulles Intl. Airport that have flexible change policies?
Flights from DIA airport to IAD offering flexible change policies are available with many carriers. Simply use our "No change fees" filter when searching. You'll only need to pay the cost difference between flights, without any extra fees to worry about.
How many hours is the flight from DEN to Dulles Intl. Airport?
There are plenty of ways to make the 3 hours and 20 minutes between DIA airport and Dulles Intl. Airport fly by. Be productive and organize your camera roll or clear out all those backed-up emails. A snooze also helps pass the time!
How far is the flight from Denver Airport to IAD?
It's around 2,300 kilometres between Denver and Chantilly, so you'll be in your seat for a while. Keep yourself occupied with things like crossword puzzles or a gripping book.
Which airlines fly direct from Denver Intl. Airport (DEN) to IAD?
United Airlines (UA) is the number one choice for many travellers. It offers 182 flights between DIA airport and Washington Dulles Intl. Airport (IAD) each month. Another airline servicing this route is Southwest Airlines (WN). You'll have 56 flights every month to choose from.
Are Denver Airport to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so it's no sure thing. While last-minute flight deals between DEN and IAD are of course possible, it's also a good idea to keep an eye on prices well before you fly. In fact, some carriers publicize their prices up to 12 months ahead of the departure date. Expedia is constantly updating the biggest airfare bargains around, so check back often and be ready to grab your seat when the price dips.

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