In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Most accurate provider : When it comes to deals on Detroit Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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.

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

Detroit Metropolitan Wayne County (DTW) is the airport you will fly out of if you book a flight from Detroit to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Detroit Metropolitan Wayne County; the airport handles an average of 18 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Detroit airport to Washington, D.C. Dulles Intl. It is only a 17.3 mi journey to Detroit Metropolitan Wayne County (DTW) from Detroit’s city center.

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.

$83+ Cheap Flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport

Q: Weekly flight availability from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport

The most flights from DTW to IAD are scheduled on a Wednesday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

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Find cheap flights from Detroit to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl are usually found in September or November, booked 57 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Detroit to Dulles Intl

Cheapest

Best

Last-minute

One-way

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 September 17, 2026.

Mon 10/264:29 pm -

1 stop27h 42m

Wed 10/286:07 pm -

1 stop29h 30m

Deal found 9/15

$158

Wed 10/286:54 pm -

1 stop15h 27m

Mon 11/211:16 am -

1 stop24h 24m

Deal found 9/15

$170

Thu 10/293:02 pm -

1 stop8h 41m

Mon 11/211:16 am -

1 stop6h 42m

Deal found 9/14

$171

Wed 10/1411:37 am -

1 stop7h 04m

Wed 10/2111:12 am -

1 stop6h 44m

Deal found 9/16

$172

Tue 10/205:50 pm -

1 stop16h 27m

Tue 10/276:07 pm -

1 stop29h 30m

Deal found 9/15

$173

Fri 10/236:51 pm -

2 stops22h 22m

Tue 10/276:07 pm -

1 stop29h 30m

Deal found 9/17

$180

Thu 10/299:07 pm -

1 stop13h 14m

Tue 11/311:16 am -

1 stop24h 24m

Deal found 9/14

$181

Sat 10/316:25 am -

1 stop10h 47m

Wed 11/411:16 am -

1 stop6h 42m

Deal found 9/14

$185

Wed 10/283:02 pm -

2 stops19h 19m

Wed 11/46:07 pm -

1 stop29h 30m

Deal found 9/16

$187

Sat 10/176:30 am -

1 stop10h 43m

Wed 10/2111:12 am -

1 stop6h 44m

Deal found 9/16

$188

Fri 11/133:02 pm -

1 stop8h 41m

Wed 11/186:07 pm -

1 stop29h 30m

Deal found 9/16

$189

Best flights from Detroit to Dulles Intl
Discover carefully curated flight deals from Detroit to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Sat 10/179:46 pm -

Nonstop1h 30m

Sat 10/246:00 am -

1 stop5h 30m

Deal found 9/14

$255

Thu 11/1210:13 am -

Nonstop1h 36m

Sun 11/1512:35 pm -

Nonstop1h 44m

Deal found 9/15

$276

Fri 10/307:50 pm -

1 stop4h 52m

Mon 11/212:20 pm -

Nonstop1h 38m

Deal found 9/15

$286

Fri 10/1610:19 am -

Nonstop1h 31m

Mon 10/198:25 am -

Nonstop1h 35m

Deal found 9/14

$299

Fri 10/232:57 pm -

Nonstop1h 31m

Mon 10/266:05 am -

Nonstop1h 35m

Deal found 9/13

$291

Wed 11/255:45 am -

Nonstop1h 36m

Mon 11/3010:20 pm -

Nonstop1h 39m

Deal found 9/15

$299

Fri 10/232:57 pm -

Nonstop1h 31m

Sun 10/256:05 am -

Nonstop1h 35m

Deal found 9/13

$291

Tue 11/245:45 am -

Nonstop1h 36m

Mon 11/3010:20 pm -

Nonstop1h 39m

Deal found 9/12

$299

Fri 11/132:55 pm -

Nonstop1h 31m

Mon 11/165:16 pm -

Nonstop1h 43m

Deal found 9/14

$295

Sat 10/107:48 pm -

Nonstop1h 37m

Sun 10/1110:25 pm -

Nonstop1h 34m

Deal found 9/12

$299

Sat 10/317:05 am -

1 stop4h 45m

Fri 11/66:05 am -

Nonstop1h 35m

Deal found 9/13

$301

Fri 10/309:46 pm -

Nonstop1h 30m

Fri 11/66:00 am -

1 stop5h 30m

Deal found 9/16

$301

Last-minute flights from Detroit to Dulles Intl
Discover last-minute flight deals from Detroit to Dulles Intl. Data last updated September 17, 2026 and is based on user searches.

Wed 10/1411:37 am -

1 stop7h 04m

Wed 10/2111:12 am -

1 stop6h 44m

Deal found 9/16

$172

Sat 10/176:30 am -

1 stop10h 43m

Wed 10/2111:12 am -

1 stop6h 44m

Deal found 9/16

$188

Tue 10/205:50 pm -

1 stop16h 27m

Tue 10/276:07 pm -

1 stop29h 30m

Deal found 9/15

$173

Fri 10/236:51 pm -

2 stops22h 22m

Tue 10/276:07 pm -

1 stop29h 30m

Deal found 9/17

$180

Sat 10/243:03 pm -

1 stop9h 18m

Fri 10/309:06 pm -

1 stop14h 37m

Deal found 9/13

$191

Mon 10/264:29 pm -

1 stop27h 42m

Wed 10/286:07 pm -

1 stop29h 30m

Deal found 9/15

$158

Wed 10/286:54 pm -

1 stop15h 27m

Mon 11/211:16 am -

1 stop24h 24m

Deal found 9/15

$170

Wed 10/283:02 pm -

2 stops19h 19m

Wed 11/46:07 pm -

1 stop29h 30m

Deal found 9/16

$187

Thu 10/293:02 pm -

1 stop8h 41m

Mon 11/211:16 am -

1 stop6h 42m

Deal found 9/14

$171

Thu 10/299:07 pm -

1 stop13h 14m

Tue 11/311:16 am -

1 stop24h 24m

Deal found 9/14

$181

Sat 10/316:25 am -

1 stop10h 47m

Wed 11/411:16 am -

1 stop6h 42m

Deal found 9/14

$185

One-way flights from Detroit to Dulles Intl
Search for one-way flight options from Detroit to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Fri 10/309:07 pm -

1 stop13h 14m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$83

Tue 10/205:50 pm -

1 stop16h 27m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$85

Thu 10/299:07 pm -

1 stop13h 14m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$108

Sat 10/1711:37 am -

1 stop7h 04m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$114

Wed 12/27:00 am -

1 stop7h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$115

Tue 11/104:29 pm -

1 stop27h 42m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$119

Sat 10/313:02 pm -

1 stop8h 41m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$120

Sat 10/101:09 pm -

1 stop11h 12m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$122

Mon 11/26:25 am -

1 stop10h 47m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/14

$123

Wed 10/2111:37 am -

2 stops12h 44m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$124

Fri 12/44:30 pm -

2 stops22h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$125

Find flight deals from Detroit to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$158 (Expedia)
One-way from	$83 (Super.com)
Popular in	June
Cheapest in	September
Average price	$243
Good round-trip deal	$277 or less
Good one-way deal	$278 or less

Provider with most accurate pricing for Detroit Metropolitan Wayne County-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Washington, D.C. Dulles Intl flights.

Search Deals

From Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($39 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl.

Search Deals

Price to beat on a one-way flight from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport 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

Tue 11/10

2:45 pm-4:20 pm

Nonstop1h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Sun 10/25

9:46 pm-11:16 pm

Nonstop1h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Fri 10/16

8:40 am-10:12 am

Nonstop1h 32m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Tue 10/27

7:45 pm-9:19 pm

Nonstop1h 34m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Wed 10/21

9:46 pm-11:16 pm

Nonstop1h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Wed 11/4

10:13 am-11:49 am

Nonstop1h 36m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Wed 3/3

2:48 pm-4:20 pm

Nonstop1h 32m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

Quickest round-trip

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Sat 10/17

10:05 am-11:34 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Fri 11/13

5:45 am-7:21 am

Nonstop1h 36m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Thu 10/29

2:57 pm-4:28 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 23 resultsSorted by cheapest first

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 September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Super.com	Price Accuracy-	Trust 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 Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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 Metropolitan Wayne County Airport-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.

DTW-IAD

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 Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport

Prices

Airlines

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

The best time to book flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport (average of $243). Flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $344). 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 DTW to IAD?

When flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 55% versus a flight at noon.

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

Travelers seeking maximum savings on their Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday 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.

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

Airfare is below average for this route at the moment.

Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $212 and $342 in October.
The cheapest round-trip price found within the last 5 days was $158 on Frontier (Oct 26-Oct 28).

The best insider tips for Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport trip

Our travel experts

Brandon Schultz

Expert on DTW

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Peruse reviews from past customers who have flown with Delta,United Airlines, andFrontier from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.

Delta

7.8

Good

8,579 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.

United Airlines

7.4

Good

10,214 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.

Frontier

5.6

Fair

2,600 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.

Related info for your journey

What airport do you fly from for flights from Detroit to Washington, D.C. Dulles Intl?
Detroit Metropolitan Wayne County (DTW) is the airport you will fly out of if you book a flight from Detroit to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Detroit Metropolitan Wayne County; the airport handles an average of 18 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Detroit airport to Washington, D.C. Dulles Intl. It is only a 17.3 mi journey to Detroit Metropolitan Wayne County (DTW) from Detroit’s city center.
How long is the flight from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport?
Delta and United Airlines can get you from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in just under 1h 30m. Your travel time will be generally consistent. Detroit Metropolitan Wayne County Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 383 mi. Generally, flights for this route are nonstop.
What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport round-trip?
Frontier, at $107, was found to be the cheapest airline from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Delta and United Airlines. Frontier is 62% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $66. Users have also found prices from $119 and $146 on Delta and United Airlines, respectively.
What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport?
Consider Sun Country Air (100%), Republic Airways (94%) or WestJet (89%) when booking your flight. These represent the most reliable airlines when flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport.
What are the cheapest flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport?
While on average a flight from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport is generally $1,671, our data shows the cheapest flight currently is $181. When looking at the most popular route, (Detroit Metropolitan Wayne County - Washington, D.C. Dulles Intl), you can expect to pay $229 for that flight.
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 Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport (average of $243). Flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $344). 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

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Alternative routes

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Dulles Intl flight routes

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Popular flights

Alternative routes for Detroit to Dulles Intl

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Detroit to Reagan-National flights

Top 3 airlines flying from Detroit to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$107	Average$254	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$181	Average$279	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$189	Average$294	FlexibilityNo cancel fee	On-time69%

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$83+ Cheap flights from Detroit Metropolitan Wayne County Airport (DTW) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Detroit to Dulles Intl

Cheapest flights from Detroit to Dulles IntlExplore 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 September 17, 2026.

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 September 17, 2026.

Best flights from Detroit to Dulles IntlDiscover carefully curated flight deals from Detroit to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Discover carefully curated flight deals from Detroit to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Last-minute flights from Detroit to Dulles IntlDiscover last-minute flight deals from Detroit to Dulles Intl. Data last updated September 17, 2026 and is based on user searches.

Discover last-minute flight deals from Detroit to Dulles Intl. Data last updated September 17, 2026 and is based on user searches.

One-way flights from Detroit to Dulles IntlSearch for one-way flight options from Detroit to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Search for one-way flight options from Detroit to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

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

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 September.

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.

Cheapflights Insights

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

The best time to book flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

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

When flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 55% versus a flight at noon.

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

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

Airfare is below average for this route at the moment.

Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $212 and $342 in October.The cheapest round-trip price found within the last 5 days was $158 on Frontier (Oct 26-Oct 28).

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

The most flights from DTW to IAD are scheduled on a Wednesday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

The best insider tips for Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport flights

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Cheapflights partnered with top experts to bring you the best recommendations for your Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport trip

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

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

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

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

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

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

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

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Alternative routes for Detroit to Dulles Intl

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Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.

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Detroit and Dulles Intl flights

Browse other Detroit and Dulles Intl flight options. Last updated on September 17, 2026.

Other flights from Detroit

Browse through other flights departing from Detroit. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.

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Top 3 airlines flying from Detroit to Dulles Intl

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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 September 17, 2026.

Best flights from Detroit to Dulles Intl
Discover carefully curated flight deals from Detroit to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Last-minute flights from Detroit to Dulles Intl
Discover last-minute flight deals from Detroit to Dulles Intl. Data last updated September 17, 2026 and is based on user searches.

One-way flights from Detroit to Dulles Intl
Search for one-way flight options from Detroit to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $212 and $342 in October.
The cheapest round-trip price found within the last 5 days was $158 on Frontier (Oct 26-Oct 28).