$109 Cheap flights from Washington Dulles Intl. to Denver Intl. (IAD to DEN)

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Find The Best Dates To Fly from Washington Dulles Intl. to Denver Intl.

Compare Flight Prices from Washington to Denver

Affordable Airfare Tickets from IAD to DEN Airport

The cheapest flights to Denver Intl. found within the past 7 days were $217 round trip and $109 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Jul 2 - Sat, Jul 12
IAD
Washington
DEN
Denver
$217 Roundtrip, found 1 day ago
$217
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jul 2 from Washington to Denver, returning Sat, Jul 12, priced at $217 found 1 day ago
Tue, Jul 1 - Tue, Jul 8
IAD
Washington
DEN
Denver
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 1 from Washington to Denver, returning Tue, Jul 8, priced at $225 found 2 days ago
Wed, Jul 2 - Sat, Jul 12
IAD
Washington
DEN
Denver
$231 Roundtrip, found 1 day ago
$231
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jul 2 from Washington to Denver, returning Sat, Jul 12, priced at $231 found 1 day ago
Sat, May 31 - Tue, Jun 3
IAD
Washington
DEN
Denver
$232 Roundtrip, found 4 days ago
$232
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sat, May 31 from Washington to Denver, returning Tue, Jun 3, priced at $232 found 4 days ago
Tue, May 27 - Wed, Jun 4
IAD
Washington
DEN
Denver
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, May 27 from Washington to Denver, returning Wed, Jun 4, priced at $237 found 2 days ago
Tue, Jul 1 - Tue, Jul 8
IAD
Washington
DEN
Denver
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jul 1 from Washington to Denver, returning Tue, Jul 8, priced at $237 found 2 days ago
Sat, Jul 12 - Tue, Jul 22
IAD
Washington
DEN
Denver
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Jul 12 from Washington to Denver, returning Tue, Jul 22, priced at $237 found 2 days ago
Mon, Aug 4 - Sat, Aug 9
IAD
Washington
DEN
Denver
$237 Roundtrip, found 7 hours ago
$237
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Mon, Aug 4 from Washington to Denver, returning Sat, Aug 9, priced at $237 found 7 hours ago
Tue, Jul 1 - Tue, Jul 8
IAD
Washington
DEN
Denver
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 1 from Washington to Denver, returning Tue, Jul 8, priced at $239 found 2 days ago
Wed, May 21 - Sun, May 25
IAD
Washington
DEN
Denver
$240 Roundtrip, found 19 hours ago
$240
Roundtrip
found 19 hours ago
Select United flight, departing Wed, May 21 from Washington to Denver, returning Sun, May 25, priced at $240 found 19 hours ago

Denver Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
A-Lodge Lyons

A-Lodge Lyons

2 out of 5
per person
Jun 13 - Jun 15
found 1 day ago
Roundtrip non-stop flight included
Washington (DCA) to Denver (DEN)
Juniper Mountain House

Juniper Mountain House

4 out of 5
per person
Jun 11 - Jun 13
found 21 hours ago
Roundtrip flight included
Washington (IAD) to Denver (DEN)
Basecamp Boulder

Basecamp Boulder

3.5 out of 5
per person
Jun 13 - Jun 15
found 1 day ago
Roundtrip non-stop flight included
Washington (DCA) to Denver (DEN)
A-Lodge Boulder

A-Lodge Boulder

3 out of 5
per person
Jun 13 - Jun 15
found 1 day ago
Roundtrip non-stop flight included
Washington (DCA) to Denver (DEN)
Hilton Denver City Center

Hilton Denver City Center

4 out of 5
per person
Jun 27 - Jun 29
found 19 hours ago
Roundtrip flight included
Washington (IAD) to Denver (DEN)
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Frequently asked questions

Are there direct flights from Washington Dulles Intl. Airport (IAD) to Denver Airport?
United Airlines and Southwest Airlines are among the airlines that operate nonstop flights from Dulles Intl. Airport to Denver Airport. If you’re keen to get to your destination fast, these are the airlines for you.
How long is the flight from IAD to DEN?
The travel time between Dulles Intl. Airport and Denver Intl. Airport (DEN) is ordinarily around 3 hours and 55 minutes. Make your trip pleasant by downloading a movie or a few TV shows on your laptop or tablet and enjoying them with your seat reclined.
What is the flight distance from Washington Dulles Intl. Airport (IAD) to Denver Airport?
The flight distance from Dulles Intl. Airport to DEN is 1,450 mi. Be sure to bring along a magazine or a crossword puzzle to make your journey more relaxing.
What airlines fly from Dulles Intl. Airport to DEN?
If you want to get to Denver from Sterling, there are several airlines advertising direct flights. One of the most popular is United Airlines (UA), which operates 199 flights on this route each month. If that’s not enough for you, look up Southwest Airlines (WN). This airline has 47 flights every month. Between the two, we’re sure you’ll find a deal that’s perfect for you.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Washington to Denver

 

Traveling From
Washington Dulles Intl.
Traveling To
Denver Intl.
Shortest Flight Time
0 hours 10 mins
Earliest Departure Time
6:22AM MDT
Latest Departure Time
10:25PM MDT
Lowest Flight Price
$217

Route Info

Flight path for flights from Washington Dulles International Airport to Denver International Airport


Origin:
IAD - Washington Dulles International Airport
Destination:
DEN - Denver International Airport
Distance:
1,481.00 miles


Airlines & Aircraft Used on IAD to DEN Flight Routes


Airline Carrier
Aircraft
American Airlines
Boeing 737 all pax models
United Airlines
Avro RJ85 Avroliner
United Airlines
Canadair Regional Jet 200

Discover our best flights from Washington IAD to Denver DEN. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Washington IAD to Denver DEN at the right price  

Airfares to Denver DEN from Washington IAD currently cost between $217 and $240. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Washington IAD to Denver DEN 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Washington IAD to Denver DEN on Travelocity starting at $109. Prices and availability subject to change. Additional terms may apply. 

 

Get to Denver DEN from Washington IAD quicker with direct flights. 

Get to Denver faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to DEN from IAD to take around 0 hour(s) 10 min(s).  

 

Find our cheapest airfares for flights from Washington IAD to Denver DEN

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to DEN from IAD. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Washington IAD to Denver DEN today 

If you’re flexible about when you travel, July is usually the cheapest month to fly from Washington IAD to Denver DEN. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Denver DEN from Washington IAD 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to DEN from IAD have this option.  

 

Travel with confidence when you book flights to Denver DEN from Washington IAD with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.