Cheap flights from Dulles Intl (IAD) to Denver (DEN) from $89

This is the cheapest one-way flight price, found on 10/2. Prices may vary by date and flight preferences.
IAD — DEN
Oct 8 — Oct 151

How to find the cheapest flight from Dulles Intl (IAD) to Denver (DEN)

All the information you need to plan the best IAD to DEN flight in 2023: compare Dulles Intl to Denver flight prices with the expected peak season, weather and rainfall in Denver.

Popular in

June

Cheapest in

January

Round-trip from

$197

One-way from

$149
High demand for flights, 28% potential price rise
Best time to find cheap flights, 33% potential price drop
From Washington, D.C. Dulles Intl to Denver Intl
One-way flight from Washington, D.C. Dulles Intl to Denver Intl

IAD - DEN

Price

$197 - $391

DEN

Temperature

30.2 - 73.4 °F

DEN

Rainfall

0.5 - 2.3 inches

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Denver?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 14 days in advance, which can save you up to 3% on flights from Washington, D.C. Dulles Intl Airport to Denver compared to booking the week you need them. Waiting 14 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $324. For sooner than that we have options available in the next 3 days from $343.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Denver?

January can be a great time to fly to Denver from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $329. Cheapflights users have found deals in the month of January for as cheap as $114. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Denver (IAD - DEN)?

When flying from Washington, D.C. Dulles Intl Airport to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Delta flights from Dulles Intl to Denver

Check out some of the cheapest Delta flights we've come across from Washington, D.C. to Denver. Make sure to double check the flight details before booking.

Cheap United Airlines flights from Dulles Intl to Denver

Browse through some of the cheapest United Airlines flights traveling from Washington, D.C. to Denver. Check back soon if you're not seeing flights that suit your needs.

Cheap Dulles Intl to Denver flights in October & November 2023

The best prices found for IAD to DEN flights for October, November
Check out some of the best flight deals from Washington, D.C. to Denver in 2023. For more flight deals, be sure to check back very soon.

Dulles Intl to Denver 2023 flight deals

Cheap flights to Denver from Dulles Intl found for this year
Check out some of the best flight deals from Washington, D.C. to Denver in 2023. For more flight deals, be sure to check back very soon.

Non-stop flights to Denver from Dulles Intl

Save time with Dulles Intl to Denver direct flight deals
For a shorter flight, select one of these non-stop flights from Washington, D.C. to Denver. Users seeking other options on flights from Washington, D.C. to Denver should update the search form at the top of the page.

Dulles Intl to Denver flights leaving soon

Late deals on return flights to Denver from Dulles Intl, departing today and this week
Consider one of these great deals we found on last-minute flights from Washington, D.C. to Denver. Users should examine the flight details to ensure there are no surprises.

One-way flights to Denver from Dulles Intl

The cheapest one-way flights from Dulles Intl to Denver
Users traveling one-way from Washington, D.C. to Denver can select one of these great deals. Users needing a return flight from Washington, D.C. to Denver should utilize the search form above.

Find flights from Dulles Intl to Denver within your budget

Use the slider to find flights from Dulles Intl to Denver that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$178 - $264

Route

Depart

Return

Price

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 10/25

Nonstop3h 54m

Denver Intl

Sat 10/28

Nonstop3h 24m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 10/24

Nonstop3h 54m

Denver Intl

Fri 10/27

Nonstop3h 24m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 11/1

2 stops21h 35m

Denver Intl

Wed 11/8

1 stop23h 10m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 10/24

Nonstop3h 54m

Denver Intl

Fri 10/27

1 stop8h 25m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 10/28

1 stop8h 25m

Denver Intl

Tue 10/31

1 stop6h 50m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 10/24

2 stops13h 19m

Denver Intl

Sat 10/28

1 stop23h 17m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 11/4

1 stop5h 41m

Denver Intl

Mon 11/6

1 stop8h 13m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 11/1

1 stop5h 35m

Denver Intl

Wed 11/8

1 stop4h 39m

Washington, D.C. Dulles IntlDenver Intl

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Thu 10/26

1 stop6h 01m

Denver Intl

Sat 11/4

1 stop7h 11m

Flights are sorted by cheapest first

Deals found on 10/2

Reviews of airlines servicing Denver

Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Washington, D.C. to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Comfort

8.0

Overall

8.1

Boarding

8.3

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

Alaska Airlines
8.1
Very good
1,394 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Comfort

8.0

Overall

8.1

Boarding

8.3

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

Delta
7.9
Good
3,023 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Comfort

8.0

Overall

8.1

Boarding

8.3

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

United Airlines
7.4
Good
1,891 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Comfort

8.0

Overall

8.1

Boarding

8.3

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Comfort

8.0

Overall

8.1

Boarding

8.3

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

Related info for your journey

Useful info, stats and facts about Dulles Intl to Denver flights.

What airport do you fly into for flights to Denver from Washington, D.C. Dulles Intl?

For a flight from Washington, D.C. Dulles Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 14 inbound flights from Washington, D.C. Dulles Intl per day. 4 airlines have flights to Denver Intl from Washington, D.C. Dulles Intl on a regular basis.

Can I find flights from Washington, D.C. Dulles Intl Airport to Denver for under $200 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Denver for under $200. The cheapest flight booked recently is on United Airlines for just $178, but on average you can expect to pay $230.

Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Denver for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Denver under $200. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Denver is less than $271.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Denver for under $300?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Denver within the next 7 days for less than $300.

What days are nonstop flights available from Washington, D.C. Dulles Intl Airport to Denver?

Days when nonstop flights are available for this flight are: Wednesday, Thursday, Friday, Saturday.

How many flights depart from Washington, D.C. Dulles Intl Airport to Denver on average per day?

Travelers can expect 4 flights from Washington, D.C. Dulles Intl Airport to Denver on average per day.
Afternoon (Noon - 6pm) - 25% of flight departures
Evening (6pm - Midnight) - 75% of flight departures

How long is the flight from Washington, D.C. Dulles Intl Airport to Denver?

United Airlines, Delta, and American Airlines can get you from Washington, D.C. Dulles Intl Airport to Denver in just under 3h 54m. Your travel time can differ by up to 4h 31m. There are 1457 mi between Washington, D.C. Dulles Intl Airport and Denver. This flight may include one or multiple stops.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Denver round-trip?

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Denver is United Airlines. Our recent data shows that you can find tickets from as low as $178 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $217 and $264 round-trip. United Airlines is currently priced 56% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Denver one-way?

$99 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $119 and $132, respectively.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Denver?

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Denver?

Before booking your flight to Denver from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Ethiopian Air (90%), Scandinavian Airlines (79%), United Airlines( 79%).

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Denver?

Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Denver? While on average our users pay $768, our data indicates the cheapest price to be $127. The most popular route (Washington, D.C. Dulles Intl - Denver Intl), is priced around $194.

What does IAD to DEN mean?

Washington, D.C. Dulles Intl Airport is IAD and Denver Intl Airport is DEN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

Alternative routes for Dulles Intl to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Dulles Intl to Denver

The chart below displays the airlines Cheapflights users traveling from Dulles Intl to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$258FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapest$192Average$389FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$198Average$406FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$247Average$402FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Hourly flight availability from Dulles Intl to Denver

See what time of day planes typically take off from Dulles Intl to Denver
1%of flight departuresEarly morningMidnight to 6 am
54%of flight departuresMorning6 am to noon
33%of flight departuresAfternoonNoon to 6 pm
12%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Dulles Intl to Denver

See how many times per day planes take to the skies headed from Dulles Intl to Denver
Sunday14daily flights
Monday15daily flights
Tuesday15daily flights
Wednesday15daily flights
Thursday15daily flights
Friday15daily flights
Saturday15daily flights

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How does Cheapflights help users find flights from Dulles Intl to Denver?

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Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Denver?

Cheapflights helps you find that perfect flight to Denver from Dulles Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Dulles Intl to Denver with no change fees?

Yes, we can. To see specific flights from Dulles Intl to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Dulles Intl to Denver become cheaper?

Of course! You can now track prices for flights from Dulles Intl to Denver and get an alert from Cheapflights when they change. Have a valid email address ready and make a flight search when you’re ready to set up your price alert.

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