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

As of August 2025, there are 36 flights per day flying from Washington, D.C. to Denver. The most common time of day flights depart is 5:00PM, with 47% of flights taking off in the afternoon.

How long does it take to fly to Denver?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Denver you fly into. For example, flying from Washington, D.C. to Denver takes 3h 45m on average. On the other hand, flying from Baltimore to Denver takes 3h 48m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Denver?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from Washington, D.C. according to our data. Frontier is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 7 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

How many flights depart from Washington, D.C. to Denver on average per week?

As of August 2025, 255 flights take off from Washington, D.C. and land in Denver each week. The most common flight departure day for this route is Thu, with 20% of weekly flights taking off on this day.

What is the cheapest airline that flies from Washington, D.C. to Denver Intl?

Frontier is the most popular carrier operating from Washington, D.C. to Denver Intl

When did momondo last update prices for flights from Washington, D.C. to Denver Intl Airport?

Prices for flights from Washington, D.C. to Denver Intl Airport refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Denver Intl Airport?

As of August 2025, there are 7 operators available to choose from for flights from Washington, D.C. to Denver Intl Airport.

How old do you have to be to fly from Washington, D.C. to Denver Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$39 Cheap Flights from Washington, D.C. to Denver (WAS-DEN) in 2025

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Find the cheapest flights from Washington, D.C. to Denver (WAS-DEN)

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

1:00 pm - 3:00 pmDCA-DEN

4h 00mnonstop

11:25 am - 4:59 pmDEN-DCA

3h 34mnonstop

$76Frontier

Find Deal

Sun, Sep 14 - Thu, Sep 18

7:00 am - 8:58 amDCA-DEN

3h 58mnonstop

11:25 am - 4:59 pmDEN-DCA

3h 34mnonstop

$77Frontier

Find Deal

Fri, Sep 12 - Sat, Sep 20

1:00 pm - 3:00 pmDCA-DEN

4h 00mnonstop

6:45 am - 12:10 pmDEN-DCA

3h 25mnonstop

$78Frontier

Find Deal

Fri, Sep 12 - Sun, Sep 14

6:00 pm - 7:59 pmDCA-DEN

3h 59mnonstop

4:34 pm - 9:59 pmDEN-DCA

3h 25mnonstop

$80Frontier

Find Deal

Sat, Nov 1 - Sat, Nov 8

7:00 am - 8:40 amIAD-DEN

3h 40mnonstop

5:25 pm - 10:45 pmDEN-IAD

3h 20mnonstop

$177Southwest

Find Deal

Sat, Sep 13 - Sat, Sep 20

5:45 am - 7:20 amIAD-DEN

3h 35mnonstop

5:30 pm - 10:50 pmDEN-IAD

3h 20mnonstop

$188Southwest

Find Deal

Wed, Sep 17 - Fri, Sep 19

5:37 pm - 10:05 pmIAD-DEN

6h 28m1 stop

11:59 pm - 9:55 amDEN-IAD

7h 56m1 stop

$191American Airlines

Find Deal

Tue, Oct 7 - Tue, Oct 7

12:48 pm - 5:02 pmIAD-DEN

6h 14m1 stop

11:59 pm - 8:43 amDEN-IAD

6h 44m1 stop

$197American Airlines

Find Deal

Sat, Sep 13 - Sat, Sep 20

3:55 pm - 5:50 pmIAD-DEN

3h 55mnonstop

6:30 am - 5:05 pmDEN-IAD

8h 35m1 stop

$198Southwest

Find Deal

Sat, Nov 8 - Tue, Nov 11

11:18 am - 10:16 pmIAD-DEN

12h 58m2 stops

11:59 pm - 10:07 amDEN-IAD

8h 08m1 stop

$202American Airlines

Find Deal

Wed, Sep 24 - Tue, Sep 30

American Airlines flights from Washington, D.C. to Denver

Our best American Airlines deals on Washington, D.C. to Denver flight tickets

American Airlines

Oct 7

IAD5:37 pmWashington, D.C. Dulles Intl

6h 28m

1 stop

DEN10:05 pmDenver Intl

Oct 7

DEN11:59 pmDenver Intl

7h 56m

1 stop

IAD9:55 amWashington, D.C. Dulles Intl

$191

Find similar

American Airlines

Sep 13

IAD12:48 pmWashington, D.C. Dulles Intl

6h 14m

1 stop

DEN5:02 pmDenver Intl

Sep 20

DEN11:59 pmDenver Intl

6h 44m

1 stop

IAD8:43 amWashington, D.C. Dulles Intl

$197

Find similar

American Airlines

Sep 24

IAD11:18 amWashington, D.C. Dulles Intl

12h 58m

2 stops

DEN10:16 pmDenver Intl

Sep 30

DEN11:59 pmDenver Intl

8h 08m

1 stop

IAD10:07 amWashington, D.C. Dulles Intl

$202

Find similar

Southwest flights from Washington, D.C. to Denver

Our best Southwest deals on Washington, D.C. to Denver flight tickets

Southwest

Sep 13

IAD7:00 amWashington, D.C. Dulles Intl

3h 40m

DEN8:40 amDenver Intl

Sep 20

DEN5:25 pmDenver Intl

3h 20m

IAD10:45 pmWashington, D.C. Dulles Intl

$177

Find similar

Southwest

Sep 17

IAD5:45 amWashington, D.C. Dulles Intl

3h 35m

DEN7:20 amDenver Intl

Sep 19

DEN5:30 pmDenver Intl

3h 20m

IAD10:50 pmWashington, D.C. Dulles Intl

$188

Find similar

Southwest

Nov 8

IAD3:55 pmWashington, D.C. Dulles Intl

3h 55m

DEN5:50 pmDenver Intl

Nov 11

DEN6:30 amDenver Intl

8h 35m

1 stop

IAD5:05 pmWashington, D.C. Dulles Intl

$198

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sun 9/14

1:00 pm-3:00 pm

Nonstop4h 00m

Denver Intl

Thu 9/18

11:25 am-4:59 pm

Nonstop3h 34m

$76

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Fri 9/12

7:00 am-8:58 am

Nonstop3h 58m

Denver Intl

Sat 9/20

11:25 am-4:59 pm

Nonstop3h 34m

$77

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Fri 9/12

1:00 pm-3:00 pm

Nonstop4h 00m

Denver Intl

Sun 9/14

6:45 am-12:10 pm

Nonstop3h 25m

$78

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 11/1

6:00 pm-7:59 pm

Nonstop3h 59m

Denver Intl

Sat 11/8

4:34 pm-9:59 pm

Nonstop3h 25m

$80

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 9/13

7:00 am-8:40 am

Nonstop3h 40m

Denver Intl

Sat 9/20

5:25 pm-10:45 pm

Nonstop3h 20m

$177

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 9/17

5:45 am-7:20 am

Nonstop3h 35m

Denver Intl

Fri 9/19

5:30 pm-10:50 pm

Nonstop3h 20m

$188

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 10/7

5:37 pm-10:05 pm

1 stop6h 28m

Denver Intl

Tue 10/7

11:59 pm-9:55 am

1 stop7h 56m

$191

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 9/13

12:48 pm-5:02 pm

1 stop6h 14m

Denver Intl

Sat 9/20

11:59 pm-8:43 am

1 stop6h 44m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 11/8

3:55 pm-5:50 pm

Nonstop3h 55m

Denver Intl

Tue 11/11

6:30 am-5:05 pm

1 stop8h 35m

$198

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 9/24

11:18 am-10:16 pm

2 stops12h 58m

Denver Intl

Tue 9/30

11:59 pm-10:07 am

1 stop8h 08m

$202

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How to get the cheapest flight ticket from Washington, D.C. to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Washington, D.C. and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Washington, D.C. is in January. Flight prices, which tend to average around $244, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until August to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $249.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $301. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $367.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $262. Flights in the evening are often more expensive with an average ticket price of $372.

What is the cheapest Washington, D.C. to Denver Intl flight route?

Fly from Washington, D.C. Dulles Intl to Denver Intl for the best Washington, D.C. - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $340 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Washington, D.C. for as low as $277 on momondo.

What cabin class options are available on Washington, D.C. to Denver Intl flights?

There are 4 cabin classes available to choose from on Washington, D.C. to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Denver flights?

You could potentially save up to 1% on your flight if you consider stops on a Washington, D.C. to Denver flight.

How have Washington, D.C. to Denver flight prices changed over time?

As of August 2025, prices for Washington, D.C. to Denver flights are approximately 53% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Denver (WAS to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Denver

Best Price Found	$39
Fastest flight time	3h 35m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Washington, D.C. in the past 72 hours is $39. The best round-trip flight deal from Washington, D.C. to Denver found on momondo in the last 72 hours is $76.

The fastest flight from Washington, D.C. to Denver takes 3h 35m

Direct flights go from Washington, D.C. to Denver every day.

There is 1 airport near Denver: Denver Intl (DEN)

Search flight deals

How far is Washington, D.C. to Denver Intl by plane?
The straight-line distance from Washington, D.C. to Denver Intl is 1487.9 mi. A reasonable flight in good conditions will take 3h 35m.
When did momondo last update prices for flights from Washington, D.C. to Denver Intl Airport?
Prices for flights from Washington, D.C. to Denver Intl Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Denver Intl Airport?
As of August 2025, there are 7 operators available to choose from for flights from Washington, D.C. to Denver Intl Airport.
How old do you have to be to fly from Washington, D.C. to Denver Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to Denver?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Denver is Boeing 737 MAX 8, representing 13.71% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 12.23%, Boeing 737-900 at 11.94%, and Airbus A320neo at 11.09%.
What is the most popular airline from Washington, D.C. to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to Denver is Frontier (59% of total bookings). The next most popular airlines are United Airlines (27%), Southwest (13%), and Delta (1%).

Best airlines flying from Washington, D.C. to Denver

Compare and see reviews for airlines that fly from Washington, D.C. to Denver with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $89	Free Cancellation	Rating 5.8 3,217 reviews	Search Frontier flights
JetBlue	PriceFrom $128	Free Cancellation	Rating 7.2 2,913 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $155	Free Cancellation	Rating 6.9 333 reviews	Search Sun Country Air flights
American Airlines	PriceFrom $166	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $188	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights
United Airlines	PriceFrom $193	Free Cancellation	Rating 7.4 8,915 reviews	Search United Airlines flights
Delta	PriceFrom $216	Free Cancellation	Rating 8.0 7,982 reviews	Search Delta flights

Southwest Flights From Washington, D.C. to Denver
The lowest priced Southwest flight from Washington, D.C. to Denver from the last 72 hours was $188. Generally, Southwest has 22 flights on this route every week with an average price of $339. Southwest is rated 8.0/10 by our users.
United Airlines Flights From Washington, D.C. to Denver
The best United Airlines deal for Washington, D.C. to Denver flight tickets found on momondo in the last 72 hours was $193, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $382 round-trip. United Airlines operates 60 flights out of Washington, D.C. into Denver in an average week, so prices vary by time and availability. 8,916 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

Estes Park

Breckenridge

Black Hawk

Aurora

Fort Collins

Keystone

Cripple Creek

Longmont

Boulder

Manitou Springs

Lakewood

Greeley

Westminster

Thornton

Winter Park

Grand Lake

Copper Mountain

Silverthorne

Frisco

Centennial

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Denver?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Denver for you.

Can I find flights from Washington, D.C. to Denver with flexible booking policies on momondo?

Yes. All flights to Denver from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Denver right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Washington, D.C. to Denver from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Denver departing on 10/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Washington, D.C. to Denver

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How to get the cheapest flight ticket from Washington, D.C. to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and Denver?

What is the cheapest month to fly to Denver?

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $301. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $367.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $262. Flights in the evening are often more expensive with an average ticket price of $372.

What is the cheapest Washington, D.C. to Denver Intl flight route?

Fly from Washington, D.C. Dulles Intl to Denver Intl for the best Washington, D.C. - Denver Intl flight prices

How far in advance should I book a flight to Denver?

What cabin class options are available on Washington, D.C. to Denver Intl flights?

There are 4 cabin classes available to choose from on Washington, D.C. to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Denver flights?

You could potentially save up to 1% on your flight if you consider stops on a Washington, D.C. to Denver flight.

How have Washington, D.C. to Denver flight prices changed over time?

As of August 2025, prices for Washington, D.C. to Denver flights are approximately 53% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Washington, D.C. to Denver Intl?

Frontier is the most popular carrier operating from Washington, D.C. to Denver Intl

What airlines fly to Denver?

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

As of August 2025, there are 36 flights per day flying from Washington, D.C. to Denver. The most common time of day flights depart is 5:00PM, with 47% of flights taking off in the afternoon.

How many flights depart from Washington, D.C. to Denver on average per week?

As of August 2025, 255 flights take off from Washington, D.C. and land in Denver each week. The most common flight departure day for this route is Thu, with 20% of weekly flights taking off on this day.

How long does it take to fly to Denver?

When to book flights from Washington, D.C. to Denver

Cheap Washington, D.C. to Denver (WAS to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Denver

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

How far is Washington, D.C. to Denver Intl by plane?

When did momondo last update prices for flights from Washington, D.C. to Denver Intl Airport?

How many operators does momondo search for flights from Washington, D.C. to Denver Intl Airport?

How old do you have to be to fly from Washington, D.C. to Denver Intl Airport?

What documentation or ID do you need to fly to Denver Intl Airport?

What is the most popular plane model from Washington, D.C. to Denver?

What is the most popular airline from Washington, D.C. to Denver?

Best airlines flying from Washington, D.C. to Denver

Compare and see reviews for airlines that fly from Washington, D.C. to Denver with momondo

Southwest Flights From Washington, D.C. to Denver

United Airlines Flights From Washington, D.C. to Denver

Traveling to a place near Denver?

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Denver?

Can I find flights from Washington, D.C. to Denver with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Denver?

I’m not ready to book a flight from Washington, D.C. to Denver right now. Can momondo alert me if prices change?

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Colorado