$29 Flights from Denver International (DEN) to Washington Ronald Reagan (DCA)

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Flight deals from Denver International to Washington Ronald Reagan

Looking for a cheap last-minute deal or the best round-trip flight from Denver International to Washington Ronald Reagan? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Denver International to Washington Ronald Reagan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Washington Ronald Reagan flights are currently cheapest in January.

Direct flights from Denver International to Washington Ronald Reagan

Denver International to Washington Ronald Reagan: Alternative routes

Compare routes from Denver International to Washington, D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Ronald Reagan.

Denver to Washington, D.C.: Flight information

The things to know before you go.
Cheapest flight found$29
Cheapest month to flyFebruary
Average flight time3 hrs, 23 mins
Most popular airlineFrontier Airlines
Average flights per week24

Finding cheap flights from Denver International to Washington Ronald Reagan: Frequently asked questions

The best price we found for a round-trip flight from Denver International to Washington Ronald Reagan is $58. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 23 minutes is the average flight time from Denver International to Washington Ronald Reagan.
Frontier Airlines, Air Canada and United fly direct from Denver International to Washington Ronald Reagan.
There are 24 flights per week flying from Denver International to Washington Ronald Reagan, as of January 2026.
The cheapest month to fly from Denver International to Washington Ronald Reagan is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Washington Ronald Reagan Airport on Tuesday, February 10, 2026.
Yes – the average flight time is 3 hours and 23 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Ronald Reagan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Washington, D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Washington Ronald Reagan.

Traveling from Denver International Airport (DEN) to Ronald Reagan National Airport (DCA): what you need to know

  • The average time for a direct flight from Denver International Airport to Ronald Reagan National Airport is 3 hours 25 minutes.

  • The timezone in Washington DC is UTC-4, which is two hours ahead of Denver.

  • You can choose from 28 weekly Denver International Airport to Ronald Reagan National Airport flights. The 06:35 departure with Frontier Airlines is the earliest flight available. Frontier Airlines operates the last service of the day at 16:28.

  • Your DEN to DCA flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're traveling internationally.

  • During popular months like July, you'll want to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're traveling during a high season in general.

  • Frontier Airlines has direct flights from Denver International Airport to Ronald Reagan National Airport. Book with this popular airline, then get ready to see the sights in Washington DC — and maybe even more of United States if time allows.

  • The airline that tops the list for bookings on this route is Frontier Airlines.

  • With a reliable 80.66% of services landing on schedule, Frontier Airlines has the best on-time performance for DEN to DCA flights.

  • If you want to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Denver International Airport to Ronald Reagan National Airport. Here are the top stopovers between DEN and DCA:

    • Eppley Airfield Airport

    • Kansas City International Airport

    • Minneapolis-St. Paul International Airport

How to find the cheapest flights from Denver International Airport (DEN) to Ronald Reagan National Airport (DCA)

  • The cheapest price we've seen for a one-way Denver International Airport to Ronald Reagan National Airport flight is $29. A return plane ticket is currently $58. Depending on the availability and when you book, these fares can change.

  • Get cheap tickets from DEN to DCA by booking seven months ahead. Based on our research, that's the sweet spot for landing a bargain.

  • The cheapest month for flights from Denver International Airport to Ronald Reagan National Airport is June. Use the 'Whole month' tool to find the lowest prices if you have a flexible travel schedule.

  • Spend less time searching for cheap flights from DEN to DCA by creating a Price Alert. You'll receive an email or push notification on the app when a special offer becomes available.

  • Choose your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Denver International Airport to Ronald Reagan National Airport.

Handy information about Denver International Airport (DEN)

  • You'll find DEN at 8500 Pena Boulevard.

  • Denver International Airport earns top marks for its on-time performance. 80.23% of flights that take off from DEN arrive at their destination without delay.

  • To reach Denver International Airport from central Denver, it'll take around 35 minutes if you're going by car. This depends on traffic though. It's approximately 25 miles from the airport to the city center.

  • You can expect a trip time of about 1 hour 30 minutes on public transport.

  • Spending the night in a hotel can take the hassle out of getting to the airport on time. If you're looking for a place to stay before your flight from Denver International Airport to Ronald Reagan National Airport, take a look at Baymont by Wyndham Denver International Airport. It's a short drive from DEN.

Arriving at Ronald Reagan National Airport (DCA)

Getting from Ronald Reagan National Airport (DCA) to central Washington DC

  • You'll find DCA at 1 Aviation Circle.

  • Ronald Reagan National Airport to the center of Washington DC has a drive time of about 15 minutes. It's approximately 5 miles away.

  • If you're traveling on public transport, expect a journey of roughly 45 minutes.

When to fly to Ronald Reagan National Airport (DCA)

  • The quietest month for a flight from Denver International Airport to Ronald Reagan National Airport is May, while February is the most popular. Choose the best time to go to Washington DC based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Washington DC is July, with temperatures ranging between 66ºF and 91ºF. Lock in your flights from Denver International Airport to Ronald Reagan National Airport in this month if this is the type of weather you like.

  • January has average temperatures of between 21ºF and 50ºF. Search for cheap tickets from DEN to DCA sometime then if you like cooler conditions.

Explore more of United States

  • You've done Washington DC, now it's time to explore other parts of United States. Journey around 200 miles north-east to New York to check off its leading attractions. From Statue of Liberty to Central Park and Empire State Building, there's plenty to keep you busy.

  • Philadelphia is another standout destination in United States and is around 120 miles north-east of Washington DC. No journey is complete without experiencing Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.