$75 Cheap United flights from Denver to Washington (DEN to IAD)

Find The Best Day To Fly from Denver to Washington

Amazing United DEN to IAD Flight Deals

The cheapest flights to Washington Dulles Intl. found within the past 7 days were $149 round trip and $75 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Oct 11 - Sat, Oct 18
DEN
Denver
IAD
Washington
$149 Roundtrip, found 1 day ago
$149
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 11 from Denver to Washington, returning Sat, Oct 18, priced at $149 found 1 day ago
Sat, Aug 23 - Wed, Aug 27
DEN
Denver
IAD
Washington
$152 Roundtrip, found 1 day ago
$152
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 23 from Denver to Washington, returning Wed, Aug 27, priced at $152 found 1 day ago
Wed, Oct 22 - Tue, Oct 28
DEN
Denver
IAD
Washington
$156 Roundtrip, found 4 days ago
$156
Roundtrip
found 4 days ago
Select United flight, departing Wed, Oct 22 from Denver to Washington, returning Tue, Oct 28, priced at $156 found 4 days ago
Wed, Oct 22 - Mon, Oct 27
DEN
Denver
IAD
Washington
$157 Roundtrip, found 4 days ago
$157
Roundtrip
found 4 days ago
Select United flight, departing Wed, Oct 22 from Denver to Washington, returning Mon, Oct 27, priced at $157 found 4 days ago
Wed, Sep 24 - Tue, Sep 30
DEN
Denver
IAD
Washington
$161 Roundtrip, found 2 days ago
$161
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 24 from Denver to Washington, returning Tue, Sep 30, priced at $161 found 2 days ago
Wed, Oct 22 - Mon, Oct 27
DEN
Denver
IAD
Washington
$171 Roundtrip, found 4 days ago
$171
Roundtrip
found 4 days ago
Select United flight, departing Wed, Oct 22 from Denver to Washington, returning Mon, Oct 27, priced at $171 found 4 days ago

IAD From DEN Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Hotel Arboretum

Hotel Arboretum

2 out of 5
Save 100% on your flight
per person
Aug 13 - Aug 18
found 1 day ago
Roundtrip flight included
Denver (DEN) to Washington (DCA)
Sofitel Washington DC Lafayette Square

Sofitel Washington DC Lafayette Square

5 out of 5
Save 100% on your flight
per person
Aug 27 - Sep 1
found 1 day ago
Roundtrip flight included
Denver (DEN) to Washington (DCA)
Crowne Plaza Crystal City-Washington, D.C. by IHG

Crowne Plaza Crystal City-Washington, D.C. by IHG

3.5 out of 5
Save 100% on your flight
per person
Aug 27 - Sep 1
found 1 day ago
Roundtrip flight included
Denver (DEN) to Washington (DCA)
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Frequently asked questions

Can I catch a flight from DEN to Dulles Intl. Airport right now?
For info on any present Dulles Intl. Airport quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Look before you book your flight, so you don't get caught up en route.
What terminal is United Airlines at Denver Airport?
Usually, flights set off from the main terminal at DIA airport if you've booked a seat with United Airlines. On your way to IAD? Contact your airline (or do some research online) to see exactly which terminal you'll be disembarking at.
Are there United Airlines non-stop flights from DEN to IAD?
You'll be pleased to hear you can go straight from DEN to Dulles Intl. Airport with United Airlines and escape the hassles of layovers. The less time you spend waiting around in the airport, the more time you'll have for new experiences.
How long is a United Airlines flight from DEN to IAD?
Indulge in some in-flight shut-eye and touch down at your destination raring to go. You'll have plenty of time to do so when traveling with United Airlines between DEN and IAD, with the flight taking around 4 hours and 13 minutes.
What type of aircraft does United Airlines fly from DEN to IAD?
Traveling with United Airlines from DEN to IAD? The Boeing 737-800 and the Boeing 737-900 are the two aircraft models that generally operate on this air route.
How many direct and indirect flights does United Airlines fly from DEN to IAD?
When heading from DEN to IAD, there are about 7 United Airlines daily flights to select from.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to IAD, please visit our Customer Service Portal.
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.

Discover our best United flight from Denver DEN to Washington IAD 

To find the best deals on flights to Denver from Washington with United, just enter your travel dates, filter by United, and hit search. You’ll find 15 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Denver DEN to Washington IAD with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $149 to $171, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Denver DEN to Washington IAD 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Denver to Washington costs from $75. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Washington IAD from  Denver DEN with United 

To find a cheap United flight from Denver DEN to Washington IAD, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Denver DEN to Washington IAD 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover. 

 

Find nonstop flights from Denver DEN to Washington IAD with United 

If you’re keen to be on Washington soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around 3 hour(s) 25 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Denver DEN to Washington IAD 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Washington IAD from  Denver DEN with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
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