$90 Cheap Flights from Detroit (DTW) to Washington (IAD)

View $90 flight on Sat, May 31, 2025Opens in a new window
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Cheap Flights from Detroit to Washington (DTW-IAD)

Prices were available within the past 7 days and start at $90 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, May 24 - Sun, May 25
DTW
Detroit
IAD
Washington
$179 Roundtrip, found 1 hour ago
$179
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, May 24 from Detroit to Washington, returning Sun, May 25, priced at $179 found 1 hour ago
United
Sat, May 24 - Sun, May 25
DTW
Detroit
IAD
Washington
$179 Roundtrip, found 1 hour ago
$179
Roundtrip
found 1 hour ago
Select United flight, departing Sat, May 24 from Detroit to Washington, returning Sun, May 25, priced at $179 found 1 hour ago
Frontier Airlines
Sun, May 18 - Tue, May 27
DTW
Detroit
IAD
Washington
$181 Roundtrip, found 3 days ago
$181
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, May 18 from Detroit to Washington, returning Tue, May 27, priced at $181 found 3 days ago
United
Tue, Jul 1 - Sat, Jul 5
DTW
Detroit
IAD
Washington
$182 Roundtrip, found 14 hours ago
$182
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Jul 1 from Detroit to Washington, returning Sat, Jul 5, priced at $182 found 14 hours ago
Delta
Tue, Aug 26 - Sun, Aug 31
DTW
Detroit
IAD
Washington
$184 Roundtrip, found 4 hours ago
$184
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Aug 26 from Detroit to Washington, returning Sun, Aug 31, priced at $184 found 4 hours ago
United
Thu, May 29 - Fri, May 30
DTW
Detroit
IAD
Washington
$186 Roundtrip, found 7 hours ago
$186
Roundtrip
found 7 hours ago
Select United flight, departing Thu, May 29 from Detroit to Washington, returning Fri, May 30, priced at $186 found 7 hours ago
United
Sat, May 24 - Sun, May 25
DTW
Detroit
IAD
Washington
$187 Roundtrip, found 1 hour ago
$187
Roundtrip
found 1 hour ago
Select United flight, departing Sat, May 24 from Detroit to Washington, returning Sun, May 25, priced at $187 found 1 hour ago
Frontier Airlines
Tue, Jun 3 - Sat, Jun 7
DTW
Detroit
IAD
Washington
$188 Roundtrip, found 1 day ago
$188
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jun 3 from Detroit to Washington, returning Sat, Jun 7, priced at $188 found 1 day ago
Delta
Wed, Jun 4 - Thu, Jun 12
DTW
Detroit
IAD
Washington
$189 Roundtrip, just found
$189
Roundtrip
just found
Select Delta flight, departing Wed, Jun 4 from Detroit to Washington, returning Thu, Jun 12, priced at $189 just found
American Airlines
Wed, Jun 4 - Wed, Jun 11
DTW
Detroit
IAD
Washington
$251 Roundtrip, found 5 hours ago
$251
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Jun 4 from Detroit to Washington, returning Wed, Jun 11, priced at $251 found 5 hours ago
Flights from Detroit (DTW) to Washington (IAD)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$179
Distance
383 mi

Detroit to Washington Flights

The cheapest times to fly from Detroit to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Detroit to Washington are during the month of May. You can find some of the cheapest flights from Detroit to Washington with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Detroit to Washington

Sunday is one of the best days to book for cheap flights from Detroit to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Detroit to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Detroit to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $90 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Detroit to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Detroit to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD) cost?
You’ll find cheap return tickets from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD) starting from $140. Book your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta and Spirit Airlines flight leaving DTW on May 13 2025 and touching down at IAD. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from DTW to IAD?
The cheapest flights from DTW to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
When flying out of Detroit Metropolitan Wayne County Airport (DTW), you can get on a direct flight to Washington Dulles Intl. Airport (IAD) with Delta Air Lines.
What is the cheapest airline that flies from DTW to IAD?
Jet off from DTW to IAD with Delta. This airline currently offers the lowest one-way fare on this route, starting at $90. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DTW on July 4 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
When departing from Detroit Metropolitan Wayne County Airport (DTW), you’ll have a choice from an average of 5 daily direct flights to Washington Dulles Intl. Airport (IAD).
What are the most popular departure times for flights from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
Flights between DTW and IAD are their busiest at 7 PM. If you’d like a more relaxed experience and potentially cheaper tickets, choose a departure that’s outside typical rush times.
What day of the week has the most flights from DTW to IAD?
If you depart on a Wednesday, you’ll get the biggest range of options for flights from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
The earliest flight leaving Detroit Metropolitan Wayne County Airport (DTW) is at around 10:10AM UTC-5. Board this plane and you’ll arrive at Washington Dulles Intl. Airport (IAD) at approximately 11:48AM UTC-5. The entire trip takes 1h 38m.
How long does it take to fly from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
The average flight duration from DTW to IAD is 1 hour and 33 minutes, covering a distance of 380 mi.
What airline has the least delays from DTW to IAD?
United Airlines has the best performance for on-time direct flights from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD), with an on-time rating of 82%. Use the Expedia App to view your flight schedule before you head off and get real-time updates about any changes.
What is the best time to fly from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
To land at Washington Dulles Intl. Airport (IAD) on time, select a flight that leaves from Detroit Metropolitan Wayne County Airport (DTW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Washington from Detroit Metropolitan Wayne County Airport (DTW)?
Detroit Metropolitan Wayne County Airport (DTW) offers direct flights to Washington. Here are a few of the airports you can fly to without stopovers:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD) last-minute?
Holding off until just before your trip to book a ticket from DTW to IAD generally means paying more. While you may come across some last-minute deals, there’s no guarantee. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a DTW to IAD flight and hotel package?
You’ll typically save money by booking a DTW to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one convenient place. After selecting your preferred flights and accommodations, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
If you reserved your DTW to IAD flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.