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Dulles Intl

$68+ Cheap flights from Detroit (DTT) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — IAD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Detroit to Dulles Intl

Cheapest flights from Detroit to Dulles Intl
Explore the most affordable flight options available from Detroit to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:49 pmDTW - IAD
Nonstop1h 36mUnited Airlines
Mon 1/510:05 pmIAD - DTW
Nonstop1h 51mUnited Airlines
Deal found 12/15$219
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:13 pmDTW - IAD
1 stop4h 39mDelta
Wed 1/75:26 pmIAD - DTW
Nonstop1h 48mDelta
Deal found 12/15$229
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:45 amDTW - IAD
Nonstop1h 42mUnited Airlines
Tue 1/138:25 amIAD - DTW
Nonstop1h 43mUnited Airlines
Deal found 12/14$234
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:45 amDTW - IAD
2 stops34h 02mMultiple Airlines
Tue 1/66:00 amIAD - DTW
1 stop26h 07mMultiple Airlines
Deal found 12/15$243
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:13 pmDTW - IAD
1 stop4h 39mDelta
Tue 12/306:00 amIAD - DTW
Nonstop1h 48mDelta
Deal found 12/15$244
This Frontier deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:25 amDTW - IAD
1 stop9h 28mFrontier
Mon 1/126:00 amIAD - DTW
1 stop8h 30mFrontier
Deal found 12/14$247
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:30 pmDTW - IAD
Nonstop1h 38mDelta
Fri 1/26:00 amIAD - DTW
Nonstop1h 48mDelta
Deal found 12/15$249
This Delta deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:15 amDTW - IAD
Nonstop1h 37mDelta
Sat 1/175:27 pmIAD - DTW
Nonstop1h 48mDelta
Deal found 12/14$250
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:45 amDTW - IAD
Nonstop1h 42mUnited Airlines
Wed 1/78:25 amIAD - DTW
Nonstop1h 43mUnited Airlines
Deal found 12/16$251
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:15 amDTW - IAD
Nonstop1h 37mDelta
Wed 12/314:17 pmIAD - DTW
1 stop5h 52mDelta
Deal found 12/15$254
This Expedia deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:49 amDTW - IAD
1 stop7h 27mFrontier
Wed 12/316:05 amIAD - DTW
1 stop12h 06mFrontier
Deal found 12/16$258
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:05 pmDTW - IAD
Nonstop1h 33mDelta
Tue 1/66:20 amIAD - DTW
1 stop4h 41mDelta
Deal found 12/16$259

Find flight deals from Detroit to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(Delta)

One-way from

$68
(Kiwi.com)

Popular in

September

Cheapest in

July

Average price

$279

Good round-trip deal

$298 or less

Good one-way deal

$187 or less
Provider with most accurate pricing for Detroit (DTT)-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Washington, D.C. Dulles Intl flights.
Search Deals
From Detroit (DTT) to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Detroit (DTT) to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Detroit (DTT) to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Detroit (DTT) to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
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

Detroit

Fly to

Dulles Intl

Route

Depart

Return

Price

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Fri 2/20

10:10 am-11:50 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Tue 2/24

6:00 am-7:48 am

Nonstop1h 48m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Thu 1/8

9:30 pm-11:06 pm

Nonstop1h 36m

Washington, D.C. Dulles Intl

Mon 1/12

12:29 pm-2:16 pm

Nonstop1h 47m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Fri 2/13

9:35 pm-11:09 pm

Nonstop1h 34m

Washington, D.C. Dulles Intl

Mon 2/16

6:00 am-7:48 am

Nonstop1h 48m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Fri 2/27

10:10 am-11:50 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Sat 3/14

6:00 am-7:43 am

Nonstop1h 43m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Sat 3/14

9:30 pm-10:59 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 3/18

12:12 pm-1:53 pm

Nonstop1h 41m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Thu 1/8

9:30 pm-11:06 pm

Nonstop1h 36m

Washington, D.C. Dulles Intl

Sat 1/10

6:00 am-7:50 am

Nonstop1h 50m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Fri 1/9

3:11 pm-4:46 pm

Nonstop1h 35m

Washington, D.C. Dulles Intl

Mon 1/12

6:00 am-7:50 am

Nonstop1h 50m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Sat 1/17

9:30 pm-11:06 pm

Nonstop1h 36m

Washington, D.C. Dulles Intl

Sun 1/18

5:26 pm-7:14 pm

Nonstop1h 48m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Thu 2/12

9:35 pm-11:09 pm

Nonstop1h 34m

Washington, D.C. Dulles Intl

Sun 2/15

5:11 pm-6:57 pm

Nonstop1h 46m

$189

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Thu 3/5

9:35 pm-11:09 pm

Nonstop1h 34m

Washington, D.C. Dulles Intl

Mon 3/9

12:12 pm-1:53 pm

Nonstop1h 41m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 21 results
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Compare providers for flights from Detroit to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Detroit-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, July is the cheapest month in which you can book a flight from Detroit to Washington, D.C. Dulles Intl Airport (average of $106). Flying from Detroit to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $189). 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?

Find hourly flight availability from Detroit to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s optimal to fly from Detroit to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Detroit to Dulles Intl. Price data was last updated on December 13, 2025.

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

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated December 18, 2025.
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
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Detroit to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 12 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 fly from Detroit to Washington, D.C. Dulles Intl Airport in about 1h 40m. 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 ($98), Delta ($152), and United Airlines ($188) offers the cheapest pricing from Detroit to Washington, D.C. Dulles Intl Airport. Users have found that Frontier is 62% 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 $59. Delta flights start at $89 while deals on United Airlines start at $118 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: Sun Country Air (100%), Republic Airways (96%), ANA (93%).

  • 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 $119. While the most popular route (Detroit Metropolitan Wayne County - Washington, D.C. Dulles Intl) can be booked for $137 on average, our data indicates $783 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, July is the cheapest month in which you can book a flight from Detroit to Washington, D.C. Dulles Intl Airport (average of $106). Flying from Detroit to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $189). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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Alternative routes for Detroit to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Detroit to Dulles Intl

Discover the top 3 airlines that operate flights from Detroit to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$170FlexibilityNo cancel feeOn-time62%
DeltaCheapest$166Average$248FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$257FlexibilityNo cancel feeOn-time69%

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