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Dulles Intl

$117+ Cheap flights from Detroit (DTT) to Dulles Intl (IAD)

DTT — IAD
Sep 22 — Sep 291
Tue 9/22
Tue 9/29
1 adult, Economy
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Cheap flight deals from Detroit to Dulles Intl

Cheapest flights from Detroit to Dulles Intl

Thu 9/178:57 pm -
1 stop12h 35m
Mon 9/211:40 pm -
1 stop21h 03m
Deal found 8/18$156
Sat 9/1910:05 am -
Nonstop1h 28m
Sat 9/265:15 pm -
Nonstop1h 37m
Deal found 8/18$157
Thu 9/108:50 am -
Nonstop1h 31m
Mon 9/1411:10 am -
Nonstop1h 34m
Deal found 8/18$158
Tue 9/157:00 am -
1 stop10h 18m
Tue 9/226:13 pm -
1 stop29h 14m
Deal found 8/19$161
Fri 9/114:00 pm -
1 stop18h 17m
Mon 9/2110:27 am -
1 stop25h 08m
Deal found 8/18$163
Thu 10/18:57 pm -
1 stop13h 20m
Mon 10/512:43 pm -
1 stop8h 49m
Deal found 8/23$164
Sat 9/1910:42 am -
1 stop7h 51m
Mon 9/2110:27 am -
1 stop25h 08m
Deal found 8/23$165
Fri 10/97:22 pm -
1 stop4h 59m
Tue 10/1311:12 am -
1 stop24h 27m
Deal found 8/19$170
Tue 9/157:00 am -
1 stop10h 18m
Sat 9/196:13 pm -
1 stop29h 14m
Deal found 8/22$171

Find flight deals from Detroit to Dulles Intl

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$156
(CheapOair)

One-way from

$117
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$294

Good round-trip deal

$268 or less

Good one-way deal

$249 or less
Provider with most accurate pricing for Detroit (DTT)-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Washington, D.C. Dulles Intl flights.
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From Detroit (DTT) to Washington, D.C. Dulles Intl
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One-way flight from Detroit (DTT) to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 15% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from Detroit (DTT) to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Detroit (DTT) to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Detroit to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Sat 10/3

10:05 am-11:33 am

Nonstop1h 28m

Washington, D.C. Dulles Intl

Mon 10/5

6:10 am-7:48 am

Nonstop1h 38m

$157
Quickest round-trip

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Thu 10/1

8:50 am-10:21 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 10/5

11:10 am-12:44 pm

Nonstop1h 34m

$157

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Fri 9/11

10:20 am-11:51 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sat 9/12

8:35 am-10:10 am

Nonstop1h 35m

$180

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Fri 10/23

6:00 am-7:26 am

Nonstop1h 26m

Washington, D.C. Dulles Intl

Mon 10/26

10:20 pm-11:59 pm

Nonstop1h 39m

$180

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Fri 9/25

9:40 pm-11:14 pm

Nonstop1h 34m

Washington, D.C. Dulles Intl

Mon 9/28

6:10 am-7:48 am

Nonstop1h 38m

$181

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Thu 9/24

8:50 am-10:21 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 10/7

3:03 pm-10:19 pm

1 stop7h 16m

$206

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Sat 10/17

10:10 am-5:33 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

Tue 10/20

10:57 am-12:32 pm

Nonstop1h 35m

$206

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Sun 11/8

9:46 pm-11:16 pm

Nonstop1h 30m

Washington, D.C. Dulles Intl

Sat 11/14

6:00 am-7:41 am

Nonstop1h 41m

$208

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Thu 9/17

8:50 am-10:21 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 9/20

6:10 am-7:48 am

Nonstop1h 38m

$208

DetroitWashington, D.C.

DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl

DTWIAD

Detroit Metropolitan Wayne County

Fri 9/11

7:20 pm-12:41 am

1 stop5h 21m

Washington, D.C. Dulles Intl

Sat 9/12

12:18 pm-1:50 pm

Nonstop1h 32m

$211

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Detroit to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Dulles Intl in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Detroit to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Detroit with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Detroit to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Detroit to Washington, D.C. Dulles Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Detroit to Washington, D.C. Dulles Intl Airport (average of $255). Flying from Detroit to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DTT to IAD?

It’s optimal to fly from Detroit to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Detroit to Washington, D.C. Dulles Intl Airport

The most flights from DTT to IAD are scheduled on a Friday (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 on average).

How much does it cost to fly round-trip from Detroit to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.
Detroit to Washington, D.C. Dulles Intl Airport flights typically cost between $250 and $385 in September.
The cheapest round-trip price found within the last 5 days was $156 on Frontier (Sep 17-Sep 21).

How far ahead should I book a flight from Detroit to Washington, D.C. Dulles Intl Airport?

The price you pay for your flight from Detroit to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest day to fly from Detroit to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Detroit to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Detroit to Washington, D.C. Dulles Intl Airport, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,515 reviews

Crew

8.5

Overall

7.8

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Sherry,Aug 2023

ATL - DCA

Didn’t receive any snacks due to turbulence which I understand but both carts started from the front of the plan so anyone in the back got no snacks. If one had started at the back more people may have been able to be served.
Delta
7.8
Good
8,515 reviews
Delta
7.8
Good
8,515 reviews

Crew

8.5

Overall

7.8

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Sherry,Aug 2023

ATL - DCA

Didn’t receive any snacks due to turbulence which I understand but both carts started from the front of the plan so anyone in the back got no snacks. If one had started at the back more people may have been able to be served.
United Airlines
7.4
Good
10,113 reviews
Delta
7.8
Good
8,515 reviews

Crew

8.5

Overall

7.8

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Sherry,Aug 2023

ATL - DCA

Didn’t receive any snacks due to turbulence which I understand but both carts started from the front of the plan so anyone in the back got no snacks. If one had started at the back more people may have been able to be served.

Related info for your journey

  • What airport do you fly from for flights from Detroit to Washington, D.C. Dulles Intl?

    Most people fly from Detroit All airports (DTT) if they book a flight from Detroit to Washington, D.C. Dulles Intl. On average, All airports has 24 outbound flights to Washington, D.C. Dulles Intl per day from 3 airlines. Detroit All airports is conveniently located just 0.6 mi from Detroit’s city center.

  • How long is the flight from Detroit to Washington, D.C. Dulles Intl Airport?

    Airlines like Delta and United Airlines fly from Detroit to Washington, D.C. Dulles Intl Airport in about 1h 28m. The time it takes to get you to your destination is usually consistent. There are 383 mi between Detroit and Washington, D.C. Dulles Intl Airport. Most flights are nonstop.

  • What are the cheapest airlines flying from Detroit to Washington, D.C. Dulles Intl Airport round-trip?

    According to our current data, Frontier ($107), Delta ($189), and United Airlines ($189) offers the cheapest pricing from Detroit to Washington, D.C. Dulles Intl Airport. Users have found that Frontier is 66% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Detroit to Washington, D.C. Dulles Intl Airport one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $66. Delta flights start at $119 while deals on United Airlines start at $145 one-way.

  • What are the most reliable airlines from Detroit to Washington, D.C. Dulles Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Detroit to Washington, D.C. Dulles Intl Airport on time: ANA (91%), Scandinavian Airlines (88%), Mesa Airlines (87%).

  • What are the cheapest flights from Detroit to Washington, D.C. Dulles Intl Airport?

    Looking at all options, your cheapest flight can be booked for $140. While the most popular route (Detroit Metropolitan Wayne County - Washington, D.C. Dulles Intl) can be booked for $155 on average, our data indicates $1,356 when flying from Detroit to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Detroit to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Detroit to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Dulles Intl.

  • Can I find deals for business class flights from Detroit to Dulles Intl?

    Yes. Cheapflights offers flight deals from Detroit to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Detroit to Washington, D.C. Dulles Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Detroit to Washington, D.C. Dulles Intl Airport (average of $255). Flying from Detroit to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Sterling
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Woodbridge

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Detroit to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$107Average$230FlexibilityNo cancel feeOn-time62%
DeltaCheapest$189Average$280FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$292FlexibilityNo cancel feeOn-time69%

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