Which airport is the most popular layover for flights between Denver and Washington, D.C.?

Atlanta (ATL) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Washington, D.C.?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Washington, D.C. from Denver according to our data. Frontier is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Denver to Washington, D.C.?

St. Louis (STL) has the shortest average layover time for this route: 0h 40m.

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

As of March 2026, 31 flights take off from Denver and land in Washington, D.C. each day. The most common flight departure time for this route is 11:00AM, with 54% of daily flights taking off at noon.

Which layover airport offers the lowest fares from Denver to Washington, D.C.?

Flights via Kansas City (MCI) offer the lowest average round-trip price of $196.

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

218 flights are operational weekly from Denver to Washington, D.C. as of March 2026. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.

Which layover airport has the shortest travel time from Denver to Washington, D.C.?

Flights connecting via St. Louis (STL) have the shortest average one-way travel time: 4h 45m.

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

Southwest, Delta, and United Airlines are the most popular carriers operating from Denver Intl to Washington, D.C.

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

Prices for flights from Denver Intl Airport to Washington, D.C. are refreshed on a daily basis.

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

There are 5 operators available for flights from Denver Intl Airport to Washington, D.C. as of March 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The necessary travel and health documents for your Washington, D.C. 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.

$76 Cheap Flights from Denver to Washington, D.C. in 2026

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Denver to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:59 pm - 10:12 am

DEN

IAD

8h 13m

1 stop

3:59 pm - 10:39 pm

IAD

DEN

8h 40m

1 stop

$160Frontier

Mon, May 4 - Fri, May 8

4:36 pm - 9:59 pm

DEN

DCA

3h 23mnonstop

8:00 am - 10:12 am

DCA

DEN

4h 12mnonstop

$161Frontier

Tue, Apr 21 - Tue, Apr 28

4:27 pm - 9:58 pm

DEN

DCA

3h 31mnonstop

7:00 am - 9:07 am

DCA

DEN

4h 07mnonstop

$162Frontier

Fri, May 8 - Mon, May 11

11:34 am - 4:59 pm

DEN

DCA

3h 25mnonstop

1:59 pm - 4:04 pm

DCA

DEN

4h 05mnonstop

$166Frontier

Fri, Apr 17 - Fri, Apr 24

7:35 am - 1:00 pm

DEN

DCA

3h 25mnonstop

1:59 pm - 4:04 pm

DCA

DEN

4h 05mnonstop

$167Frontier

Thu, Apr 16 - Fri, Apr 24

4:36 pm - 9:59 pm

DEN

DCA

3h 23mnonstop

8:00 am - 10:12 am

DCA

DEN

4h 12mnonstop

$168Frontier

Wed, Apr 22 - Sat, Apr 25

11:34 am - 4:59 pm

DEN

DCA

3h 25mnonstop

7:59 am - 10:11 am

DCA

DEN

4h 12mnonstop

$169Frontier

Sat, Apr 25 - Wed, Apr 29

7:35 am - 12:59 pm

DEN

DCA

3h 24mnonstop

6:00 pm - 8:11 pm

DCA

DEN

4h 11mnonstop

$170Frontier

Sun, Apr 26 - Sun, Apr 26

8:00 am - 10:20 pm

DEN

BWI

12h 20m

2 stops

12:17 pm - 10:29 pm

BWI

DEN

12h 12m

1 stop

$236Multiple Airlines

Sat, Apr 25 - Wed, Apr 29

11:55 pm - 5:20 am

DEN

BWI

3h 25mnonstop

7:20 am - 9:20 am

BWI

DEN

4h 00mnonstop

$245Southwest

Tue, Apr 21 - Tue, Apr 28

Frontier flights from Denver to Washington, D.C.

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

Frontier

May 4

DEN11:59 pmDenver Intl

8h 13m

1 stop

IAD10:12 amWashington, D.C. Dulles Intl

May 8

IAD3:59 pmWashington, D.C. Dulles Intl

8h 40m

1 stop

DEN10:39 pmDenver Intl

$160

Frontier

Apr 21

DEN4:36 pmDenver Intl

3h 23m

DCA9:59 pmWashington, D.C. Reagan-National

Apr 28

DCA8:00 amWashington, D.C. Reagan-National

4h 12m

DEN10:12 amDenver Intl

$161

Frontier

May 8

DEN4:27 pmDenver Intl

3h 31m

DCA9:58 pmWashington, D.C. Reagan-National

May 11

DCA7:00 amWashington, D.C. Reagan-National

4h 07m

DEN9:07 amDenver Intl

$162

Southwest flights from Denver to Washington, D.C.

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

Southwest

Apr 20

DEN7:05 pmDenver Intl

3h 15m

IAD12:20 amWashington, D.C. Dulles Intl

Apr 21

IAD4:30 pmWashington, D.C. Dulles Intl

4h 00m

DEN6:30 pmDenver Intl

$215

Southwest

Apr 21

DEN6:10 pmDenver Intl

3h 30m

IAD11:40 pmWashington, D.C. Dulles Intl

Apr 28

IAD6:20 amWashington, D.C. Dulles Intl

3h 50m

DEN8:10 amDenver Intl

$217

Southwest

Apr 21

DEN11:55 pmDenver Intl

3h 25m

BWI5:20 amBaltimore/Washington

Apr 28

BWI7:20 amBaltimore/Washington

4h 00m

DEN9:20 amDenver Intl

$245

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mon 5/4

11:59 pm-10:12 am

1 stop8h 13m

Washington, D.C. Dulles Intl

Fri 5/8

3:59 pm-10:39 pm

1 stop8h 40m

$160

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 4/21

4:36 pm-9:59 pm

Nonstop3h 23m

Washington, D.C. Reagan-National

Tue 4/28

8:00 am-10:12 am

Nonstop4h 12m

$161

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 5/8

4:27 pm-9:58 pm

Nonstop3h 31m

Washington, D.C. Reagan-National

Mon 5/11

7:00 am-9:07 am

Nonstop4h 07m

$162

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 4/17

11:34 am-4:59 pm

Nonstop3h 25m

Washington, D.C. Reagan-National

Fri 4/24

1:59 pm-4:04 pm

Nonstop4h 05m

$166

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 4/16

7:35 am-1:00 pm

Nonstop3h 25m

Washington, D.C. Reagan-National

Fri 4/24

1:59 pm-4:04 pm

Nonstop4h 05m

$167

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 4/22

4:36 pm-9:59 pm

Nonstop3h 23m

Washington, D.C. Reagan-National

Sat 4/25

8:00 am-10:12 am

Nonstop4h 12m

$168

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sat 4/25

11:34 am-4:59 pm

Nonstop3h 25m

Washington, D.C. Reagan-National

Wed 4/29

7:59 am-10:11 am

Nonstop4h 12m

$169

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sun 4/26

7:35 am-12:59 pm

Nonstop3h 24m

Washington, D.C. Reagan-National

Sun 4/26

6:00 pm-8:11 pm

Nonstop4h 11m

$170

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Sat 4/25

8:00 am-10:20 pm

2 stops12h 20m

Baltimore/Washington

Wed 4/29

12:17 pm-10:29 pm

1 stop12h 12m

$236

Quickest round-trip

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Tue 4/21

11:55 pm-5:20 am

Nonstop3h 25m

Baltimore/Washington

Tue 4/28

7:20 am-9:20 am

Nonstop4h 00m

$245

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Layovers

Other information

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

What is the cheapest month to fly to Washington, D.C.?

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Denver, with most prices found around $204. If you’re not able to fly to Washington, D.C. in January, then February is your next best option. Flight prices from Denver to Washington, D.C. during February average around $210.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Denver is on a Friday. momondo users have found tickets for Friday departures for as low as $324. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Denver to Washington, D.C. for around $428.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Denver to Washington, D.C. when you can find flight prices for as low as $331. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $625. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $343 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Denver for as low as $258 on momondo.

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

There are 4 cabin classes available to choose from on Denver Intl to Washington, D.C. 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 Denver to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between Denver to Washington, D.C..

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

As of March 2026, prices for Denver to Washington, D.C. flights are approximately 2% cheaper when compared to flights at the same time last year.

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

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

Estimated round-trip price

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

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

Best Price Found	$138
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Denver in the past 72 hours is $138. The best round-trip flight deal from Denver to Washington, D.C. found on momondo in the last 72 hours is $249.

The fastest flight from Denver to Washington, D.C. takes 3h 10m

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

There are 2 airports in Washington, D.C.. From Denver there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).

Search flight deals

How far is Denver Intl to Washington, D.C. by plane?
Denver Intl and Washington, D.C. are 1487.9 mi apart from one another. By plane, this route typically takes 3h 10m.
When did momondo last update prices for flights from Denver Intl Airport to Washington, D.C.?
Prices for flights from Denver Intl Airport to Washington, D.C. are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Washington, D.C.?
There are 5 operators available for flights from Denver Intl Airport to Washington, D.C. as of March 2026.
How old do you have to be to fly from Denver Intl Airport to Washington, D.C.?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The necessary travel and health documents for your Washington, D.C. 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 Denver to Washington, D.C.?
momondo data reveals that the most frequently booked plane model on the route from Denver to Washington, D.C. is Boeing 737 MAX 8, representing 16.72% of all bookings. The subsequent popular models are Airbus A321neo at 14.66%, Airbus A320neo at 13.02%, and Boeing 737-900 at 12.56%.
What is the most popular airline from Denver to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Denver to Washington, D.C. is Frontier (68% of total bookings). The next most popular airlines are United Airlines (22%) and Southwest (10%).

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

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $100	Free Cancellation	Rating 5.7 3,015 reviews	Search Frontier flights
Delta	PriceFrom $118	Free Cancellation	Rating 7.9 8,331 reviews	Search Delta flights
United Airlines	PriceFrom $168	Free Cancellation	Rating 7.4 9,484 reviews	Search United Airlines flights
Southwest	PriceFrom $177	Free Cancellation	Rating 8.0 4,333 reviews	Search Southwest flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.1 11,495 reviews	Search American Airlines flights

Southwest Flights From Denver to Washington, D.C.
Southwest flight deals from Denver to Washington, D.C. start from $177 round-trip. Over the 14 Southwest flights for this route in a normal week, average airfare is usually $344 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Denver to Washington, D.C.
The best United Airlines deal for Denver to Washington, D.C. flight tickets found on momondo in the last 72 hours was $168, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $388 round-trip. United Airlines operates 45 flights out of Denver into Washington, D.C. in an average week, so prices vary by time and availability. 9,484 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Silver Spring

Fredericksburg

Rockville

Tysons

Manassas

Linthicum Heights

Springfield

Bethesda

Fairfax

College Park

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Flights from Denver to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Denver to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Washington, D.C. from Denver are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Washington, D.C. 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 4/25

Sat 5/2

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Denver

Complete your trip

Feeling lucky

Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Denver to Washington, D.C. from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Washington, D.C. departing on 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Denver to Washington, D.C.

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Denver to Washington, D.C.

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

Southwest flights from Denver to Washington, D.C.

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

momondo Fare Finder

Use the filters below to find and compare flights from Denver to Washington, D.C. that are best for you.

See travel insights to Washington, D.C. from

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

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

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

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

How far in advance should I book a flight to Washington, D.C.?

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

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

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

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

What airlines fly to Washington, D.C.?

Which airport is the most popular layover for flights between Denver and Washington, D.C.?

Which layover airport offers the lowest fares from Denver to Washington, D.C.?

Which layover airport has the shortest travel time from Denver to Washington, D.C.?

Which layover airport has the shortest connection time from Denver to Washington, D.C.?

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

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

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

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Washington, D.C.

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

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

Southwest Flights From Denver to Washington, D.C.

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

Traveling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. 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

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

Fly your favorite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Denver

According to popular flight searches on momondo this year

Complete your trip to Washington, D.C.

Explore popular destinations other users love

According to popular flight searches on momondo this year