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

Frontier, Delta, and Southwest can get you from Denver to Washington, D.C. in just under 3h 15m. Your travel time can differ by up to 2h 56m. The distance between Denver and Washington, D.C. is about 1486 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from Denver to Washington, D.C. is Frontier. Our recent data shows that you can find tickets from as low as $104 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $108 and $186 round-trip. Frontier is currently priced 68% below the average price you’ll pay for this route.

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

$62 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and American Airlines, with prices starting from $88 and $98, respectively.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Denver to Washington, D.C.?

When deciding which route to take from Denver to Washington, D.C. consider Denver Intl - Washington, D.C. Dulles Intl, Denver Intl - Baltimore/Washington or Denver Intl - Washington, D.C. Reagan-National as they are the most popular.

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

Looking for the cheapest flight from Denver to Washington, D.C.? While on average our users pay $1,110, our data indicates the cheapest price to be $193. The most popular route (Denver Intl - Washington, D.C. Dulles Intl), is priced around $219.

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

Before booking your flight to Washington, D.C. from Denver, check out the most reliable airlines to get you to your destination on time: Avianca (93%), ITA Airways (92%), Brussels Airlines( 84%).

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

The most popular airlines flying from Denver to Washington, D.C. are Frontier, United Airlines and Southwest. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Denver-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Denver-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Most people fly from Denver Intl (DEN) if they book a flight from Denver to Washington, D.C.. On average, Denver Intl has 24 outbound flights to Washington, D.C. per day from 6 airlines. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

Can I find deals for flights from Denver to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Denver to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Denver to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Washington, D.C..

Can I find deals for business class flights from Denver to Washington, D.C.?

Yes. Cheapflights offers flight deals from Denver to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$83+ Cheap Flights from Denver to Washington, D.C.

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Denver Intl to Washington, D.C. are usually found in January or February, booked 37 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Denver to Washington, D.C.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Denver to Washington, D.C.
Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.

Mon 9/710:45 pm -

1 stop28h 16m

Wed 9/96:35 am -

1 stop8h 16m

Deal found 8/23

$225

Fri 9/184:28 pm -

Nonstop3h 31m

Tue 9/227:00 am -

Nonstop4h 03m

Deal found 8/19

$225

Fri 9/189:19 pm -

1 stop12h 14m

Tue 9/224:36 pm -

1 stop7h 13m

Deal found 8/19

$226

Wed 9/164:28 pm -

Nonstop3h 31m

Fri 9/181:06 pm -

Nonstop3h 51m

Deal found 8/18

$226

Mon 10/56:38 pm -

1 stop9h 42m

Mon 10/129:06 pm -

1 stop13h 00m

Deal found 8/21

$227

Sat 11/147:25 am -

Nonstop3h 24m

Tue 11/176:00 pm -

Nonstop4h 03m

Deal found 8/18

$227

Sat 9/1910:44 am -

1 stop11h 26m

Thu 9/246:00 am -

1 stop8h 51m

Deal found 8/18

$228

Tue 9/156:38 pm -

1 stop9h 42m

Tue 9/224:36 pm -

1 stop7h 13m

Deal found 8/19

$229

Wed 9/96:38 pm -

1 stop9h 42m

Wed 9/234:36 pm -

1 stop7h 13m

Deal found 8/21

$230

Sat 9/124:28 pm -

Nonstop3h 31m

Mon 9/141:06 pm -

Nonstop3h 51m

Deal found 8/18

$230

Wed 9/166:38 pm -

1 stop9h 42m

Tue 9/224:36 pm -

1 stop7h 13m

Deal found 8/19

$231

Tue 9/1511:23 am -

Nonstop3h 36m

Tue 9/227:00 am -

Nonstop4h 03m

Deal found 8/18

$231

Best flights from Denver to Washington, D.C.
Discover carefully curated flight deals from Denver to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Thu 9/244:30 pm -

1 stop6h 11m

Mon 9/287:17 pm -

1 stop5h 57m

Deal found 8/21

$295

Tue 1/58:30 am -

Nonstop3h 15m

Tue 1/127:00 am -

Nonstop4h 10m

Deal found 8/19

$297

Thu 12/105:40 pm -

Nonstop3h 20m

Mon 12/141:10 pm -

1 stop7h 00m

Deal found 8/20

$307

Wed 9/26:15 am -

1 stop8h 49m

Fri 9/45:34 pm -

1 stop6h 40m

Deal found 8/19

$464

Wed 9/2312:59 am -

1 stop5h 36m

Sat 9/261:15 pm -

1 stop7h 31m

Deal found 8/21

$295

Fri 9/187:05 pm -

Nonstop3h 27m

Sun 9/206:30 am -

Nonstop3h 54m

Deal found 8/22

$319

Sat 9/2611:20 am -

1 stop4h 55m

Tue 9/292:20 pm -

Nonstop3h 50m

Deal found 8/22

$329

Sat 9/198:00 am -

Nonstop3h 30m

Mon 9/216:30 am -

Nonstop3h 54m

Deal found 8/18

$319

Fri 10/94:18 pm -

1 stop5h 26m

Sun 10/116:10 am -

1 stop5h 22m

Deal found 8/18

$339

Fri 11/137:05 pm -

Nonstop3h 10m

Tue 11/178:05 am -

Nonstop4h 15m

Deal found 8/22

$342

Sat 10/2410:20 am -

Nonstop3h 26m

Mon 10/266:10 am -

Nonstop4h 09m

Deal found 8/22

$319

Thu 9/106:35 am -

1 stop7h 57m

Wed 9/166:10 am -

1 stop6h 38m

Deal found 8/19

$339

Sat 9/1211:10 am -

2 stops7h 40m

Mon 9/146:50 pm -

1 stop5h 10m

Deal found 8/18

$344

Thu 10/2211:52 pm -

Nonstop3h 25m

Mon 10/266:10 am -

Nonstop4h 09m

Deal found 8/18

$319

Tue 9/226:40 am -

Nonstop3h 25m

Thu 9/244:25 pm -

1 stop5h 30m

Deal found 8/20

$345

Fri 9/41:15 pm -

1 stop8h 33m

Fri 9/118:00 am -

1 stop8h 51m

Deal found 8/20

$369

Mon 9/145:15 am -

Nonstop3h 25m

Thu 9/174:35 pm -

1 stop5h 20m

Deal found 8/21

$352

Fri 10/26:08 pm -

Nonstop3h 36m

Tue 10/63:04 pm -

1 stop9h 11m

Deal found 8/22

$352

Wed 9/29:39 am -

1 stop5h 49m

Thu 9/36:05 am -

1 stop8h 03m

Deal found 8/21

$378

Tue 11/34:35 pm -

Nonstop3h 10m

Sun 11/810:40 am -

1 stop5h 20m

Deal found 8/19

$363

Fri 9/411:59 pm -

Nonstop3h 26m

Wed 9/94:15 pm -

Nonstop4h 00m

Deal found 8/20

$379

Sat 9/511:04 am -

1 stop5h 05m

Sun 9/69:00 am -

1 stop5h 55m

Deal found 8/20

$399

Thu 11/510:30 am -

1 stop5h 00m

Sun 11/89:50 pm -

Nonstop4h 05m

Deal found 8/18

$363

Thu 9/177:00 am -

1 stop5h 40m

Tue 9/226:30 am -

Nonstop3h 45m

Deal found 8/22

$365

Fri 11/64:10 pm -

Nonstop3h 20m

Sun 11/158:20 am -

Nonstop4h 09m

Deal found 8/20

$409

Fri 10/210:30 am -

2 stops7h 20m

Mon 10/57:35 pm -

1 stop5h 05m

Deal found 8/23

$370

Sat 11/215:55 pm -

Nonstop3h 20m

Wed 11/255:20 pm -

Nonstop4h 10m

Deal found 8/22

$409

Thu 9/103:40 pm -

Nonstop3h 28m

Wed 9/1610:34 pm -

Nonstop3h 56m

Deal found 8/19

$410

Wed 9/168:40 am -

1 stop7h 25m

Sat 9/196:10 am -

2 stops8h 55m

Deal found 8/18

$374

Fri 10/1611:25 am -

1 stop5h 30m

Sun 10/187:40 am -

Nonstop3h 55m

Deal found 8/21

$379

Last-minute flights from Denver to Washington, D.C.
Discover last-minute flight deals from Denver to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

Mon 9/710:45 pm -

1 stop28h 16m

Wed 9/96:35 am -

1 stop8h 16m

Deal found 8/23

$225

Wed 9/96:38 pm -

1 stop9h 42m

Wed 9/234:36 pm -

1 stop7h 13m

Deal found 8/21

$230

Thu 9/109:19 pm -

1 stop12h 14m

Wed 9/164:36 pm -

1 stop7h 13m

Deal found 8/20

$227

Sat 9/124:28 pm -

Nonstop3h 31m

Mon 9/141:06 pm -

Nonstop3h 51m

Deal found 8/18

$230

Tue 9/156:38 pm -

1 stop9h 42m

Tue 9/224:36 pm -

1 stop7h 13m

Deal found 8/19

$229

Tue 9/1511:23 am -

Nonstop3h 36m

Tue 9/227:00 am -

Nonstop4h 03m

Deal found 8/18

$231

Wed 9/164:28 pm -

Nonstop3h 31m

Fri 9/181:06 pm -

Nonstop3h 51m

Deal found 8/18

$226

Wed 9/166:38 pm -

1 stop9h 42m

Tue 9/224:36 pm -

1 stop7h 13m

Deal found 8/19

$231

Fri 9/184:28 pm -

Nonstop3h 31m

Tue 9/227:00 am -

Nonstop4h 03m

Deal found 8/19

$225

Fri 9/189:19 pm -

1 stop12h 14m

Tue 9/224:36 pm -

1 stop7h 13m

Deal found 8/19

$226

Sat 9/1910:44 am -

1 stop11h 26m

Thu 9/246:00 am -

1 stop8h 51m

Deal found 8/18

$228

Sat 9/266:45 am -

Nonstop3h 26m

Wed 9/301:00 pm -

Nonstop3h 51m

Deal found 8/19

$232

One-way flights from Denver to Washington, D.C.
Search for one-way flight options from Denver to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.

Wed 9/1610:28 am -

1 stop25h 39m

Deal found 8/22

$83

Wed 11/187:09 pm -

1 stop16h 58m

Deal found 8/21

$84

Wed 9/2312:24 pm -

1 stop7h 06m

Deal found 8/23

$85

Wed 9/3010:28 am -

1 stop25h 39m

Deal found 8/20

$87

Tue 10/206:57 pm -

1 stop19h 50m

Deal found 8/19

$89

Tue 9/157:10 pm -

1 stop12h 15m

Deal found 8/19

$91

Wed 10/217:09 pm -

1 stop17h 00m

Deal found 8/23

$92

Tue 9/2210:44 am -

1 stop20h 41m

Deal found 8/23

$94

Tue 11/175:17 pm -

2 stops20h 55m

Deal found 8/18

$95

Sun 9/136:38 pm -

1 stop9h 42m

Deal found 8/21

$117

Fri 10/166:45 am -

Nonstop3h 19m

Deal found 8/19

$117

Tue 9/84:25 pm -

1 stop10h 36m

Deal found 8/21

$118

Find flight deals from Denver to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$225 (Justfly.com)
One-way from	$83 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$356
Good round-trip deal	$230 or less
Good one-way deal	$145 or less

Provider with most accurate pricing for Denver Intl-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Denver Intl-Washington, D.C. (WAS) flights.

Search Deals

From Denver Intl to Washington, D.C. (WAS)

Search Deals

One-way flight from Denver Intl to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($91 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Price to beat on a round-trip flight from Denver Intl to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from Denver Intl to Washington, D.C. (WAS).

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Thu 9/24

4:30 pm-12:41 am

1 stop6h 11m

Washington, D.C. Dulles Intl

Mon 9/28

7:17 pm-11:14 pm

1 stop5h 57m

$295

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Wed 9/23

12:59 am-8:35 am

1 stop5h 36m

Washington, D.C. Reagan-National

Sat 9/26

1:15 pm-6:46 pm

1 stop7h 31m

$295

DenverBaltimore

DEN Denver Intl - BWI Baltimore/Washington

DENBWI

Denver Intl

Tue 1/5

8:30 am-1:45 pm

Nonstop3h 15m

Baltimore/Washington

Tue 1/12

7:00 am-9:10 am

Nonstop4h 10m

$297

DenverBaltimore

DEN Denver Intl - BWI Baltimore/Washington

DENBWI

Denver Intl

Thu 12/10

5:40 pm-11:00 pm

Nonstop3h 20m

Baltimore/Washington

Mon 12/14

1:10 pm-6:10 pm

1 stop7h 00m

$307

Quickest round-trip

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Fri 9/18

7:05 pm-12:32 am

Nonstop3h 27m

Washington, D.C. Dulles Intl

Sun 9/20

6:30 am-8:24 am

Nonstop3h 54m

$319

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Sat 9/19

8:00 am-1:30 pm

Nonstop3h 30m

Washington, D.C. Dulles Intl

Mon 9/21

6:30 am-8:24 am

Nonstop3h 54m

$319

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Sat 10/24

10:20 am-3:46 pm

Nonstop3h 26m

Washington, D.C. Dulles Intl

Mon 10/26

6:10 am-8:19 am

Nonstop4h 09m

$319

DenverWashington, D.C.

DEN Denver Intl - IAD Washington, D.C. Dulles Intl

DENIAD

Denver Intl

Thu 10/22

11:52 pm-5:17 am

Nonstop3h 25m

Washington, D.C. Dulles Intl

Mon 10/26

6:10 am-8:19 am

Nonstop4h 09m

$319

DenverBaltimore

DEN Denver Intl - BWI Baltimore/Washington

DENBWI

Denver Intl

Sat 9/26

11:20 am-6:15 pm

1 stop4h 55m

Baltimore/Washington

Tue 9/29

2:20 pm-4:10 pm

Nonstop3h 50m

$329

DenverWashington, D.C.

DEN Denver Intl - DCA Washington, D.C. Reagan-National

DENDCA

Denver Intl

Fri 10/9

4:18 pm-11:44 pm

1 stop5h 26m

Washington, D.C. Reagan-National

Sun 10/11

6:10 am-9:32 am

1 stop5h 22m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/22

Showing 1-10 of 60 resultsSorted by cheapest first

...

Compare providers for flights from Denver to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Washington, D.C. in August.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
Cheapflightsfares	Price Accuracy2 stars	Trust Score*1 star
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Super.com	Price Accuracy-	Trust Score*3 stars
BudgetAir	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Denver-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Denver-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Denver with our price prediction graph.

DEN-WAS

DEN-IAD

DEN-DCA

DEN-BWI

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Washington, D.C.

DEN-WAS

DEN-IAD

DEN-DCA

DEN-BWI

What is the cheapest month to book a flight from Denver to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of $238). Flying from Denver to Washington, D.C. in June is currently the most expensive (average of $475). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to WAS?

When flying from Denver to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 34% versus a flight in the evening.

Weekly flight availability from Denver to Washington, D.C.

The most flights from DEN to WAS are scheduled on a Friday (32 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 on average).

How much does it cost to fly round-trip from Denver to Washington, D.C.?

Airfare is below average for this route at the moment.

Denver to Washington, D.C. flights typically cost between $238 and $414 in September.
The cheapest round-trip price found within the last 5 days was $225 on Frontier (Sep 7-Sep 9).

What’s the top layover airport for flights from Denver to Washington, D.C.?

Atlanta (ATL) – chosen by Cheapflights users on 93% of 1-stop itineraries from Denver to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Denver to Washington, D.C.?

Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $177.

What’s the fastest layover option from Denver to Washington, D.C.?

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 7h 30m.

Which airport typically offers the quickest layover for flights from Denver to Washington, D.C.?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 2h 37m.

How far ahead should I book a flight from Denver to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from Denver to Washington, D.C., you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Denver to Washington, D.C.?

Travelers seeking maximum savings on their Denver to Washington, D.C. flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Denver to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Washington, D.C. trip

Our travel experts

Paul Rubio

Expert on Ethiopian Air

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Marisa Garcia

Expert on Frontier and Southwest

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Emily Zemler

Expert on DCA and DEN

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read through reviews of airlines operating flights from Denver to Washington, D.C., such as Southwest,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,214 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.

Southwest

8.0

Very good

4,214 reviews

Southwest

8.0

Very good

4,214 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.

United Airlines

7.4

Good

10,112 reviews

Southwest

8.0

Very good

4,214 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.

JetBlue

7.1

Good

3,039 reviews

Southwest

8.0

Very good

4,214 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.

Frontier

5.6

Fair

2,657 reviews

Southwest

8.0

Very good

4,214 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.

Related info for your journey

What airport do you fly from for flights from Denver to Washington, D.C.?
Most people fly from Denver Intl (DEN) if they book a flight from Denver to Washington, D.C.. On average, Denver Intl has 24 outbound flights to Washington, D.C. per day from 6 airlines. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.
How long is the flight from Denver to Washington, D.C.?
Frontier, Delta, and Southwest can get you from Denver to Washington, D.C. in just under 3h 15m. Your travel time can differ by up to 2h 56m. The distance between Denver and Washington, D.C. is about 1486 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Denver to Washington, D.C. round-trip?
Our cheapest airline available from Denver to Washington, D.C. is Frontier. Our recent data shows that you can find tickets from as low as $104 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $108 and $186 round-trip. Frontier is currently priced 68% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Denver to Washington, D.C. one-way?
$62 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and American Airlines, with prices starting from $88 and $98, respectively.
What are the most popular routes from Denver to Washington, D.C.?
When deciding which route to take from Denver to Washington, D.C. consider Denver Intl - Washington, D.C. Dulles Intl, Denver Intl - Baltimore/Washington or Denver Intl - Washington, D.C. Reagan-National as they are the most popular.
What are the most reliable airlines from Denver to Washington, D.C.?
Before booking your flight to Washington, D.C. from Denver, check out the most reliable airlines to get you to your destination on time: Avianca (93%), ITA Airways (92%), Brussels Airlines( 84%).
What are the cheapest flights from Denver to Washington, D.C.?
Looking for the cheapest flight from Denver to Washington, D.C.? While on average our users pay $1,110, our data indicates the cheapest price to be $193. The most popular route (Denver Intl - Washington, D.C. Dulles Intl), is priced around $219.
Can I find deals for flights from Denver to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Denver to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Denver to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Washington, D.C..
Can I find deals for business class flights from Denver to Washington, D.C.?
Yes. Cheapflights offers flight deals from Denver to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Denver to Washington, D.C.?
Currently, February is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of $238). Flying from Denver to Washington, D.C. in June is currently the most expensive (average of $475). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 6 airlines flying from Denver to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$104	Average$289	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$108	Average$418	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$186	Average$334	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$188	Average$399	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$197	Average$503	FlexibilityNo cancel fee	On-time69%
JetBlue	Cheapest$280	Average$363	FlexibilityNo cancel fee	On-time62%

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$83+ Cheap flights from Denver (DEN) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Denver to Washington, D.C.

Cheapest flights from Denver to Washington, D.C.Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.

Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.

Best flights from Denver to Washington, D.C.Discover carefully curated flight deals from Denver to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Discover carefully curated flight deals from Denver to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Last-minute flights from Denver to Washington, D.C.Discover last-minute flight deals from Denver to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

Discover last-minute flight deals from Denver to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

One-way flights from Denver to Washington, D.C.Search for one-way flight options from Denver to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.

Search for one-way flight options from Denver to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.

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

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Washington, D.C. in August.

Best time to book a flight from Denver to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Denver with our price prediction graph.

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What is the cheapest month to book a flight from Denver to Washington, D.C.?

What is the cheapest time of day to fly from DEN to WAS?

Find hourly flight availability from Denver to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 23, 2026.

When flying from Denver to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 34% versus a flight in the evening.

Weekly flight availability from Denver to Washington, D.C.

The most flights from DEN to WAS are scheduled on a Friday (32 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 on average).

How much does it cost to fly round-trip from Denver to Washington, D.C.?

Airfare is below average for this route at the moment.

Denver to Washington, D.C. flights typically cost between $238 and $414 in September.The cheapest round-trip price found within the last 5 days was $225 on Frontier (Sep 7-Sep 9).

What’s the top layover airport for flights from Denver to Washington, D.C.?

Share of 1-stop round-trip flights from Denver to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Atlanta (ATL) – chosen by Cheapflights users on 93% of 1-stop itineraries from Denver to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Denver to Washington, D.C.?

Average round-trip fare for 1-stop flights from Denver to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $177.

What’s the fastest layover option from Denver to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Denver to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 7h 30m.

Which airport typically offers the quickest layover for flights from Denver to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Denver to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 2h 37m.

How far ahead should I book a flight from Denver to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from Denver to Washington, D.C., you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Denver to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Denver to Washington, D.C.. Price data was last updated on August 15, 2026.

Travelers seeking maximum savings on their Denver to Washington, D.C. flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Denver to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Washington, D.C. trip

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Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Denver to Washington, D.C., such as Southwest,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

What are the most popular routes from Denver to Washington, D.C.?

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

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

Can I find deals for flights from Denver to Washington, D.C. that include hotel bookings?

How can I find direct flights from Denver to Washington, D.C.?

Can I find deals for business class flights from Denver to Washington, D.C.?

What is the cheapest month to book a flight from Denver to Washington, D.C.?

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

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Cheapest flights from Denver to Washington, D.C.
Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.

Best flights from Denver to Washington, D.C.
Discover carefully curated flight deals from Denver to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Last-minute flights from Denver to Washington, D.C.
Discover last-minute flight deals from Denver to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

One-way flights from Denver to Washington, D.C.
Search for one-way flight options from Denver to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.

Denver to Washington, D.C. flights typically cost between $238 and $414 in September.
The cheapest round-trip price found within the last 5 days was $225 on Frontier (Sep 7-Sep 9).