$70 Cheap Flights from Detroit (DTW) to Washington (IAD)

View $70 flight on Wed, Feb 18, 2026Opens in a new window

Popular airlines from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)

Today's featured flight deals from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Detroit to Washington (DTW-IAD)

Prices were available within the past 7 days and start at $70 for one-way flights and $138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Feb 25 - Thu, Feb 26
DTW
Detroit
IAD
Washington
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Feb 25 from Detroit to Washington, returning Thu, Feb 26, priced at $138 found 2 days ago
Frontier Airlines
Wed, Feb 18 - Thu, Feb 19
DTW
Detroit
IAD
Washington
$145 Roundtrip, found 2 days ago
$145
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Feb 18 from Detroit to Washington, returning Thu, Feb 19, priced at $145 found 2 days ago
Frontier Airlines
Wed, Feb 18 - Thu, Feb 26
DTW
Detroit
IAD
Washington
$155 Roundtrip, found 1 day ago
$155
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Feb 18 from Detroit to Washington, returning Thu, Feb 26, priced at $155 found 1 day ago
Frontier Airlines
Sat, Jan 31 - Thu, Feb 5
DTW
Detroit
IAD
Washington
$172 Roundtrip, found 1 hour ago
$172
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jan 31 from Detroit to Washington, returning Thu, Feb 5, priced at $172 found 1 hour ago
Frontier Airlines
Sat, Jan 17 - Fri, Jan 30
DTW
Detroit
IAD
Washington
$174 Roundtrip, found 5 days ago
$174
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Jan 17 from Detroit to Washington, returning Fri, Jan 30, priced at $174 found 5 days ago
Frontier Airlines
Wed, Feb 25 - Thu, Mar 5
DTW
Detroit
IAD
Washington
$176 Roundtrip, found 1 day ago
$176
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Feb 25 from Detroit to Washington, returning Thu, Mar 5, priced at $176 found 1 day ago
Frontier Airlines
Wed, Feb 25 - Sun, Mar 1
DTW
Detroit
IAD
Washington
$180 Roundtrip, found 1 day ago
$180
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Feb 25 from Detroit to Washington, returning Sun, Mar 1, priced at $180 found 1 day ago
Delta
Fri, Feb 13 - Mon, Feb 16
DTW
Detroit
IAD
Washington
$189 Roundtrip, just found
$189
Roundtrip
just found
Select Delta flight, departing Fri, Feb 13 from Detroit to Washington, returning Mon, Feb 16, priced at $189 just found
United
Fri, Jan 16 - Sat, Jan 17
DTW
Detroit
IAD
Washington
$189 Roundtrip, just found
$189
Roundtrip
just found
Select United flight, departing Fri, Jan 16 from Detroit to Washington, returning Sat, Jan 17, priced at $189 just found
American Airlines
Thu, Feb 12 - Mon, Feb 16
DTW
Detroit
IAD
Washington
$259 Roundtrip, just found
$259
Roundtrip
just found
Select American Airlines flight, departing Thu, Feb 12 from Detroit to Washington, returning Mon, Feb 16, priced at $259 just found

Find the cheapest month to fly from Detroit (DTW) to Washington (IAD)

March is typically the cheapest month to fly

From $115 - $502 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $633
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $633
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
$138
Distance
383 mi
Average flight time
1 hour 37 mins

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 February. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $70 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?
Snag a cheap one-way flight from $70 or cheap return flight from $138 from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
Traveling in February can help you save, as it's the cheapest month for flights between DTW and IAD. You'll often find the lowest fares during the off-season.
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 Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD)?
United Airlines and Delta Air Lines are some well-known airlines offering reasonable fares. Keep in mind that flight prices from Detroit Metropolitan Wayne County Airport (DTW) to Washington Dulles Intl. Airport (IAD) can vary depending on demand, seasonality and time of booking. With Expedia's search tool, you can easily find a DTW to IAD flight that matches your preferences and budget.
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.