Cheap flights from Dallas to Washington Dulles

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Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from Dallas to Washington Dulles Airport

Looking for a cheap last-minute deal or the best round-trip flight from Dallas to Washington Dulles Airport? If you want to travel next month, round-trip fares start from $130. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Dallas to Washington Dulles

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

Direct flights from Dallas to Washington Dulles

Dallas to Washington, D.C.: Flight information

The things to know before you go.
Cheapest flight found$56
Cheapest month to flyJune
Average flight time2 hrs, 53 mins
Most popular airlineAmerican Airlines
Average flights per week264

Finding cheap flights from Dallas to Washington Dulles: Frequently asked questions

The best price we found for a round-trip flight from Dallas to Washington Dulles is $103. 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.
2 hours and 52 minutes is the average flight time from Dallas to Washington Dulles.
American Airlines, Alaska Airlines and Qatar Airways fly direct from Dallas to Washington Dulles.
There are 264 flights per week flying from Dallas to Washington Dulles, as of April 2026.
The cheapest month to fly from Dallas to Washington Dulles is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Dallas to Washington Dulles Airport on Monday, June 1, 2026.
Yes – the average flight time is 2 hours and 52 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 Dulles 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.
The cheapest airline that flies to Washington Dulles is Frontier Airlines.

Flying from Dallas to Washington Dulles International Airport (IAD): What you need to know

  • Your adventure will begin at Dallas Fort Worth International Airport (DFW), the main airport in Dallas. Look for flights from Dallas to Washington Dulles International Airport (IAD) that leave from this terminal.

  • Expect to be in the air for 2 hours 50 minutes. That's the average journey time for a direct Dallas to Washington Dulles International Airport flight.

  • Washington DC is one hour ahead of Dallas. Washington Dulles International Airport is located in Washington DC, which runs on the UTC-5 timezone.

  • Dallas Fort Worth International Airport (DFW) to Washington Dulles International Airport (IAD) is the most popular route. There are 38 direct weekly departures to pick from. If you have things to do before leaving, hop on the last flight with American Airlines at 7:02pm. Go for the first DFW to IAD departure with Frontier Airlines at 6:05am if you're aiming for an earlier start.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to board your flight from Dallas to IAD.

  • With more travelers during busy months like July, get to the terminal earlier than usual. Two hours for domestic flights and as much as four for international journeys will help you stay ahead of the crowds. Remember things also get busy during major holidays like July Fourth.

Airports in Dallas

Dallas Fort Worth International Airport (DFW)

  • You can book a direct flight from Dallas to Washington Dulles International Airport (IAD) departing from Dallas Fort Worth International Airport (DFW).

  • You'll have your choice of airlines offering direct flights from Dallas to Washington Dulles International Airport departing from DFW. Get on board with any of these:

  • The majority of passengers choose to fly with United from DFW to IAD.

  • With 78.21% of services landing as planned, United is the top performer for punctuality on this route.

  • The journey from central Dallas to DFW takes about 1 hour by public transport. If you ride-share, drive or get a cab, you'll cover the 32 kilometers in 25 minutes or so, depending on traffic.

  • Want an easy start to your journey? Stay near Dallas Fort Worth International Airport. Whether you've booked an early flight from Dallas to Washington Dulles International Airport or aren't a fan of being rushed, these hotels have you covered:

  • 72% of flights leaving from Dallas Fort Worth International Airport make it to their destination on time.

  • DFW is located at 2400 Aviation Dr.

Dallas Love Field (DAL)

About Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • Washington Dulles International Airport is around 40 kilometers from the center of Washington DC. It takes around 45 minutes or so to drive to the city.

  • If you're traveling on public transport, expect a journey time of roughly 1 hour 10 minutes.

How to find the cheapest flights from Dallas to Washington Dulles International Airport (IAD)

  • $56 is the best price for a one-way ticket from Dallas to Washington Dulles International Airport. A return flight starts from $103. These prices can change based on demand and availability.

  • To snag cheap flights from Dallas to IAD, book your ticket one month ahead of your departure date.

  • June is when you're most likely to land a fantastic deal on a Dallas to Washington Dulles International Airport ticket. If you're looking to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Be the first to know about deals for plane tickets from Dallas to IAD by setting up a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.

  • Tailor your trip using filters. Choose your ideal departure and arrival times, total journey duration and airlines. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Dallas to Washington Dulles International Airport.

The best time to fly from Dallas to Washington Dulles International Airport (IAD)

  • Think about the kind of vacation you want when picking your flight dates. February is the quietest month to visit Washington DC. June is when most people book flights from Dallas to Washington Dulles International Airport (IAD), which may be ideal if you enjoy traveling when it's busier.

  • Before locking in your Dallas to IAD plane ticket, consider what kind of weather you prefer. July is the warmest month in Washington DC, with temperatures ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • Look for cheap tickets from Dallas to Washington Dulles International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -6ºC (21ºF) and 10ºC (50ºF).

More about Washington DC

Explore more of the United States

  • You've done Washington DC, now it's time to discover other parts of the United States. Travel about 225 kilometers northeast to Philadelphia to check off its popular sights. From Independence Hall to Liberty Bell and Philadelphia Museum of Art, you'll have a packed itinerary ahead.

  • Virginia Beach is another essential stop in the United States and is around 274 kilometers southeast of Washington DC. No journey is complete without visiting Virginia Beach Boardwalk, Resort Beach and Neptune's Park.

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