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

United Airlines, Southwest, and Delta can get you from Denver to Washington, D.C. in just under 3h 21m. Your travel time can differ by up to 4h 46m. 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 $100 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $148 and $166 round-trip. Frontier is currently priced 61% 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?

$89 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 Southwest and Frontier, with prices starting from $89 and $108, respectively.

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 52 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 month to book a flight from Denver to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of $292). Flying from Denver to Washington, D.C. in April is currently the most expensive (average of $337). 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 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 Wednesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

The most flights from DEN to WAS are scheduled on a Monday (32 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

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 - Baltimore/Washington, Denver Intl - Washington, D.C. Dulles Intl 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 $1,314, our data indicates the cheapest price to be $108. The most popular route (Denver Intl - Baltimore/Washington), is priced around $134.

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: ITA Airways (100%), Avianca (92%), Brussels Airlines( 83%).

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 Delta, Frontier and United Airlines. Something to consider prior to booking your flight.

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 in the morning, which can drop the price by up to 48% versus a flight at noon.

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 27 outbound flights to Washington, D.C. per day from 5 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.

$79+ Flights from Denver to Washington, D.C.

Round-trip from	$131 (Trip.com)
One-way from	$79 (Cheapflightsfares)
Popular in	December
Cheapest in	August
Average price	$237
Good round-trip deal	$149 or less
Good one-way deal	$94 or less

Ethiopian Airlines offers 32-inch pitch in Economy Class, providing better-than-average comfort.

Enjoy Ethiopian national dishes like doro wot on flights, offering a cultural culinary experience.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$100	Average$234	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$138	Average$335	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$166	Average$292	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$173	Average$384	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$177	Average$340	FlexibilityNo cancel fee	On-time63%

$79+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to Washington, D.C. with Cheapflights

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Cheapflights Tip: The best prices from Denver Intl to Washington, D.C. are usually found in August or February, booked 52 days in advance, depart on a Friday or Thursday and return on a Wednesday

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

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Find 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 septiembre 17, 2025.

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 septiembre 17, 2025.

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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

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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.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Washington, D.C.. Price data was last updated on September 12, 2025.

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 septiembre 17, 2025.

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 September 14, 2025.

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

Reviews of airlines servicing Washington, D.C.

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

Related info for your journey

Find useful and relevant information for your journey from Denver to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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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Alternative routes for Denver to Washington, D.C.

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

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 septiembre 17, 2025.