Cheap Flights from Denver to Washington D.C.

Compare Denver to Washington D.C. flight deals

Find the cheapest month or even day of the year to fly to Washington D.C.

Book the best Washington D.C. fare with no extra fees

Flight deals from Denver to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from Denver to Washington D.C.? If you want to travel next month, return fares start from $221. Find the lowest prices on one-way and return tickets right here.

Washington D.C..$212 per passenger.Departing Sat, 2 May, returning Tue, 5 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Sat, 2 May, arriving in Washington Ronald Reagan.Inbound direct flight with Frontier Airlines departs from Washington Ronald Reagan on Tue, 5 May, arriving in Denver International.Price includes taxes and charges.From $212, select.

Washington D.C..$219 per passenger.Departing Sat, 25 Apr, returning Sat, 2 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Sat, 25 Apr, arriving in Washington Ronald Reagan.Inbound direct flight with Frontier Airlines departs from Washington Ronald Reagan on Sat, 2 May, arriving in Denver International.Price includes taxes and charges.From $219, select.

Washington D.C..$221 per passenger.Departing Sat, 18 Apr, returning Sat, 25 Apr.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Sat, 18 Apr, arriving in Washington Ronald Reagan.Inbound direct flight with Frontier Airlines departs from Washington Ronald Reagan on Sat, 25 Apr, arriving in Denver International.Price includes taxes and charges.From $221, select.

Washington D.C..$360 per passenger.Departing Thu, 28 May, returning Tue, 2 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Thu, 28 May, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 2 Jun, arriving in Denver International.Price includes taxes and charges.From $360, select.

Washington D.C..$397 per passenger.Departing Thu, 4 Jun, returning Mon, 8 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Thu, 4 Jun, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 8 Jun, arriving in Denver International.Price includes taxes and charges.From $397, select.

Washington D.C..$445 per passenger.Departing Thu, 26 Mar, returning Thu, 2 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Thu, 26 Mar, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Thu, 2 Apr, arriving in Denver International.Price includes taxes and charges.From $445, select.

Washington D.C..$462 per passenger.Departing Thu, 28 May, returning Mon, 1 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Thu, 28 May, arriving in Washington Ronald Reagan.Inbound direct flight with Frontier Airlines departs from Washington Ronald Reagan on Mon, 1 Jun, arriving in Denver International.Price includes taxes and charges.From $462, select.

Washington D.C..$465 per passenger.Departing Fri, 31 Jul, returning Sun, 2 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Fri, 31 Jul, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Sun, 2 Aug, arriving in Denver International.Price includes taxes and charges.From $465, select.

Washington D.C..$465 per passenger.Departing Wed, 15 Jul, returning Fri, 24 Jul.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Wed, 15 Jul, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Fri, 24 Jul, arriving in Denver International.Price includes taxes and charges.From $465, select.

Washington D.C..$493 per passenger.Departing Tue, 2 Jun, returning Thu, 4 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Tue, 2 Jun, arriving in Washington Ronald Reagan.Inbound direct flight with Frontier Airlines departs from Washington Ronald Reagan on Thu, 4 Jun, arriving in Denver International.Price includes taxes and charges.From $493, select.

Washington D.C..$500 per passenger.Departing Sat, 27 Jun, returning Sat, 4 Jul.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Sat, 27 Jun, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Sat, 4 Jul, arriving in Denver International.Price includes taxes and charges.From $500, select.

Washington D.C..$513 per passenger.Departing Sat, 28 Mar, returning Sat, 4 Apr.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Sat, 28 Mar, arriving in Washington Ronald Reagan.Inbound direct flight with Frontier Airlines departs from Washington Ronald Reagan on Sat, 4 Apr, arriving in Denver International.Price includes taxes and charges.From $513, select.

Washington D.C..$522 per passenger.Departing Sat, 28 Mar, returning Sun, 29 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Sat, 28 Mar, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Sun, 29 Mar, arriving in Denver International.Price includes taxes and charges.From $522, select.

Washington D.C..$530 per passenger.Departing Sun, 29 Mar, returning Tue, 31 Mar.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Sun, 29 Mar, arriving in Washington Ronald Reagan.Inbound direct flight with Frontier Airlines departs from Washington Ronald Reagan on Tue, 31 Mar, arriving in Denver International.Price includes taxes and charges.From $530, select.

Washington D.C..$662 per passenger.Departing Fri, 3 Jul, returning Mon, 6 Jul.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Fri, 3 Jul, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Mon, 6 Jul, arriving in Denver International.Price includes taxes and charges.From $662, select.

Washington D.C..$662 per passenger.Departing Thu, 10 Sep, returning Sun, 13 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Thu, 10 Sep, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sun, 13 Sep, arriving in Denver International.Price includes taxes and charges.From $662, select.

Find the cheapest month to fly from Denver to Washington D.C.

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

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Direct flights from Denver to Washington D.C.

Alternative Denver to Washington D.C. routes

Looking for the cheapest, fastest or easiest route from Denver to Washington D.C.? You could fly into the following airports instead.

Denver to Washington D.C.: Flight information

The things to know before you go.

Cheapest flight found	$212
Cheapest month to fly	May
Average flight time	3 hrs, 25 mins
Most popular airline	Southwest Airlines
Average flights per week	265

Finding cheap flights from Denver to Washington D.C.: Frequently asked questions

How many airports are there in Washington D.C.?

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.

How much are return flights from Denver to Washington D.C.?

The best price we found for a return flight from Denver to Washington D.C. is $212. 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.

How long does it take to fly from Denver to Washington D.C.?

3 hours and 25 minutes is the average flight time from Denver to Washington D.C..

Which airlines fly direct from Denver to Washington D.C.?

Southwest Airlines, United and Copa fly direct from Denver to Washington D.C..

How many flights are there a week from Denver to Washington D.C.?

As of March 2026, there are 265 flights per week flying from Denver to Washington D.C..

When is the cheapest time to fly from Denver to Washington D.C.?

The cheapest month to fly from Denver to Washington D.C. is usually May.

Which is the cheapest airport to fly into in Washington D.C.?

If you're flying from Denver, the cheapest airport near Washington D.C. is Washington Ronald Reagan – which is 5.5 km away from the centre of Washington D.C.. We've found flights into this airport from $212.

Which upcoming date is cheapest to fly from Denver to Washington D.C. on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Washington D.C. on Saturday, 2 May 2026.

Can I get a direct flight from Denver to Washington D.C.?

Yes – the average flight time is 3 hours and 25 minutes.

How can I get the best flight deal from Denver to Washington D.C.?

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 D.C. 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.

When is the best time to book flights to Washington D.C.?

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.

What’s the weather like in Washington D.C.?

In March, the average temperature is usually around 6°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.

Which is the cheapest airline to fly from Denver to Washington D.C. with?

The cheapest airline that flies to Washington D.C. is Frontier Airlines .

Travelling from Denver to Washington DC: what you need to know

Start your adventure at Denver International Airport (DEN), the main airport in Denver. Search for flights from Denver to Washington DC that leave from this base.
Ronald Reagan National Airport (DCA) and Washington Dulles International Airport (IAD) are the major arrival points in Washington DC.
Around 3 hours 20 minutes is how long you'll be travelling on a direct Denver to Washington DC flight.
The timezone in Washington DC is UTC-4, which is two hours ahead of Denver.
Denver International Airport (DEN) to Washington Dulles International Airport (IAD) is the most traveled route that connects these two cities. There are 62 flights a week to pick from. If you prefer a later start to the day, the last flight from Denver to Washington DC is with United Airlines at 23:59. Choose the first DEN to IAD departure operated by United Airlines at 06:00 to make the most of your first day in Washington DC.
Leave plenty of time to get on your Denver to Washington DC flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.
You'll likely experience longer queues in popular months such as July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a good idea.

How to find the cheapest flights from Denver to Washington DC

The cheapest price we've found for a one-way ticket from Denver to Washington DC is $92. For a return flight on this route, the best price is $212. Depending on when and how early you book, these fares could change.
Score cheap Denver to Washington DC flights by booking one month ahead. According to our research, that's the ideal time frame for finding the biggest deals.
The best month for scoring cheap plane tickets from Denver to Washington DC is April. Use the 'Whole month' tool to compare flight prices, then choose the dates offering the lowest fares.
Cut down on the time spent looking for cheap flights from Denver to Washington DC by creating a Price Alert. You'll get an email or notification through the app when fares go down.
Tailor your flights using filters. Select your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' Denver to Washington DC flights.

Flying from Denver

Denver International Airport (DEN)

You can book a direct flight from Denver to Washington DC taking off from Denver International Airport (DEN). Head out from DEN and then arrive at one of these Washington DC airports:
- Ronald Reagan National Airport (DCA)
- Washington Dulles International Airport (IAD)
- Baltimore/Wash International Thurgood Marshall Airport (BWI)
You'll find a variety of carriers offering direct Denver to Washington DC plane tickets with departures from DEN, including:
DEN is about 31 kilometres from central Denver. If you're ride-sharing, catching a cab or driving from the centre, it'll take 35 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be around 1 hour 30 minutes.
Booking a hotel room for the night can take the hassle out of arriving at the airport on time. If you're searching for somewhere to stay before your flight from Denver to Washington DC, check out Baymont by Wyndham Denver International Airport. It's a short ride from Denver International Airport.
Denver International Airport has a strong on-time performance, reducing the likelihood of delays. Departures from DEN touch down on schedule 80.23% of the time.
DEN's address is 8500 Pena Boulevard.

Arriving in Washington DC

Ronald Reagan National Airport (DCA)

Ronald Reagan National Airport (DCA) is approximately 5 kilometres from central Washington DC. If you're catching a cab or a ride-share, the drive takes roughly 15 minutes.
Getting to the centre on public transport takes about 45 minutes.
Consider staying in a hotel near DCA if you have a late flight from Denver to Washington DC. Choose one of these accommodation options and skip the long transfer:
Explore without limits with a Ronald Reagan National Airport rental car. Pick up your wheels from Thrifty, Sixt or Dollar and venture far and wide through Washington DC and beyond.
Lock in the lowest price by booking your vehicle from Ronald Reagan National Airport around four weeks ahead of your departure.
The address for DCA is 1 Aviation Circle.

Washington Dulles International Airport (IAD)

Washington Dulles International Airport (IAD) is about 40 kilometres from central Washington DC. Following your flight from Denver to Washington DC, it takes approximately 50 minutes to reach the heart of the city in a cab or ride-share.
If you're catching public transport, it'll take about 1 hour 10 minutes.
Hang the 'Do not disturb' sign on your door and unwind at a hotel near IAD. Here are a few options where you can check in after your flight from Denver to Washington DC:
Forget about public transport timetables or cab lines. Grab a Washington Dulles International Airport rental car and take your trip in whatever direction you choose. Check out the availability and rates from Dollar, Thrifty and Sixt.
Get first dibs on the best options. Securing your ride from IAD one week in advance often means lower prices and a greater range of vehicles.
Washington Dulles International Airport is located at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

Head to the city centre after your flight from Denver to Washington DC has landed. Central Washington DC is around 40 kilometres from Baltimore/Wash International Thurgood Marshall Airport (BWI) and takes roughly 50 minutes to reach by cab or ride-share.
The journey takes about 1 hour 30 minutes using public transport.
Reserve a hotel close to BWI and go from landing to lounging in your room in a flash. Whether you're coming in on a late Denver to Washington DC flight or just want an easier arrival, these accommodation options are all about convenience:
Whether you want a compact for a solo adventure or a spacious SUV to transport your group, you'll find the right Baltimore/Wash International Thurgood Marshall Airport rental car for your needs. Browse wheels available from providers such as Dollar, Thrifty and Budget.
If you're searching for a specific kind of vehicle, lock in your ride from BWI about two weeks before your flight from Denver to Washington DC. This gives you a higher chance of getting the car you want, as well as a better deal.

Best time to go to Washington DC

February is the busiest month for flights from Denver to Washington DC. To avoid the crowds, visit Washington DC in May.
The warmest month in Washington DC is July, with temperatures ranging between 19ºC and 33ºC. Lock in your Denver to Washington DC ticket then if this is the type of weather you enjoy.
If you want cooler conditions, search for a cheap flight from Denver to Washington DC in January when temperatures average between -6ºC and 10ºC.

More about Washington DC

Start your Washington DC trip right by choosing the perfect place to stay. As soon as you've booked your flight from Denver to Washington DC, check out our range of hotels including:
There are so many things to explore in this city it can be difficult to know where to start. White House Historical Association, The White House and National Mall are major attractions which should feature on any well-planned Washington DC itinerary.

Explore more of United States

You've done Washington DC, now it's time to explore other corners of United States. Travel about 322 kilometres north-east to New York to check off its leading sights. From Statue of Liberty to Central Park and Empire State Building, you'll have a full itinerary ahead.
Around 193 kilometres north-east of Washington DC, Philadelphia is another essential stop in United States. Experience this destination's highlights firsthand at Liberty Bell, Independence Hall and Philadelphia Museum of Art.