In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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

Detroit Metropolitan Wayne County (DTW), located 27.8 km from the city centre, is the airport you fly out of when you book flights from Detroit to Washington, D.C. Dulles Intl. 0 airlines have flights from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 17 outbound flights to Washington, D.C. Dulles Intl per day.

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.

C$ 205+ Cheap Flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport

Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl are usually found in September or February, booked 68 days in advance, depart on a Friday or Tuesday and return on a Monday

Cheap flight deals from Detroit to Dulles Intl

Enter your travel dates to find the best prices.

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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 27 October 2026.

Sat 14/1110:13 a.m. -

Nonstop1h 36m

Wed 18/115:15 p.m. -

Nonstop1h 41m

Deal found 24/10C$ 217

Fri 18/122:55 p.m. -

Nonstop1h 28m

Thu 31/126:00 a.m. -

Nonstop1h 46m

Deal found 25/10C$ 220

Fri 20/115:45 a.m. -

Nonstop1h 36m

Sun 22/1112:35 p.m. -

Nonstop1h 44m

Deal found 26/10C$ 245

Thu 19/112:55 p.m. -

Nonstop1h 31m

Sun 22/116:00 a.m. -

Nonstop1h 41m

Deal found 26/10C$ 247

Wed 28/104:29 p.m. -

1 stop27h 42m

Fri 6/116:07 p.m. -

1 stop29h 30m

Deal found 25/10C$ 261

Tue 29/125:40 a.m. -

Nonstop1h 51m

Fri 1/110:10 p.m. -

Nonstop1h 47m

Deal found 26/10C$ 264

Thu 19/119:12 a.m. -

Nonstop1h 45m

Wed 2/125:14 p.m. -

Nonstop1h 40m

Deal found 22/10C$ 273

Sun 22/119:12 a.m. -

Nonstop1h 45m

Wed 2/125:14 p.m. -

Nonstop1h 40m

Deal found 22/10C$ 287

Wed 28/104:29 p.m. -

1 stop27h 42m

Thu 5/116:07 p.m. -

1 stop29h 30m

Deal found 25/10C$ 304

Wed 23/129:30 p.m. -

Nonstop1h 40m

Tue 5/16:00 a.m. -

1 stop5h 03m

Deal found 26/10C$ 310

Fri 20/115:45 a.m. -

Nonstop1h 36m

Sat 21/1112:35 p.m. -

Nonstop1h 44m

Deal found 25/10C$ 315

Thu 19/119:35 a.m. -

1 stop6h 24m

Thu 26/116:00 a.m. -

Nonstop1h 41m

Deal found 22/10C$ 320

Find flight deals from Detroit to Dulles Intl

Round-trip from	C$ 217
One-way from	C$ 205
Popular in	June
Cheapest in	September
Average price	C$ 447
Good round-trip deal	C$ 1,172 or less

United Airlines
18/12-31/12
Nonstop
3h 34m total
Detroit to Washington, D.C.

Search Deals

Frontier
3/11-31/12
1 total stop
10h 47m total
Detroit to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (C$ 43 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

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

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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

Fri 4/12

9:43 p.m.-11:23 p.m.

Nonstop1h 40m

Washington, D.C. Dulles Intl

Mon 7/12

11:30 a.m.-1:09 p.m.

Nonstop1h 39m

C$ 220

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Fri 11/12

9:43 p.m.-11:23 p.m.

Nonstop1h 40m

Washington, D.C. Dulles Intl

Sun 13/12

6:00 a.m.-7:45 a.m.

Nonstop1h 45m

C$ 247

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Tue 10/11

9:12 a.m.-10:57 a.m.

Nonstop1h 45m

Washington, D.C. Dulles Intl

Tue 17/11

5:16 p.m.-6:59 p.m.

Nonstop1h 43m

C$ 273

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Wed 18/11

2:45 p.m.-4:20 p.m.

Nonstop1h 35m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 286

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Thu 19/11

9:35 a.m.-1:54 p.m.

1 stop4h 19m

Washington, D.C. Dulles Intl

Tue 24/11

6:00 a.m.-7:41 a.m.

Nonstop1h 41m

C$ 320

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Sat 14/11

9:50 p.m.-11:21 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 16/11

12:35 p.m.-6:48 p.m.

1 stop6h 13m

C$ 320

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Wed 16/12

12:37 p.m.-8:11 p.m.

1 stop7h 34m

Washington, D.C. Dulles Intl

Fri 8/1

6:10 a.m.-7:51 a.m.

Nonstop1h 41m

C$ 320

Quickest round-trip

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Thu 26/11

5:45 p.m.-7:16 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 327

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Sat 5/12

2:40 p.m.-4:15 p.m.

Nonstop1h 35m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 327

DetroitWashington, D.C.

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

DTWIAD

Detroit Metropolitan Wayne County

Tue 1/12

9:43 p.m.-11:23 p.m.

Nonstop1h 40m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 327

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 21 resultsSorted by cheapest first

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

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

Booking 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 C$ 352). Flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of C$ 482). 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?

It’s optimal to fly from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the evening.

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 C$ 349 and C$ 576 in November.
The cheapest round-trip price found within the last 5 days was C$ 217 on United Airlines (14 Nov-18 Nov).

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), located 27.8 km from the city centre, is the airport you fly out of when you book flights from Detroit to Washington, D.C. Dulles Intl. 0 airlines have flights from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 17 outbound flights to Washington, D.C. Dulles Intl per day.
How long is the flight from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport?
Departing from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport will take you 1h 40m. Airlines will cover a distance of 616 km. All flights are typically direct.
What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport?
Consider Sun Country Air (100%), Endeavor Airlines (100%) or Republic Airways (97%) 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.
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 C$ 352). Flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of C$ 482). 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.

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How does Cheapflights help users find flights from Detroit to Dulles Intl?

Cheapflights makes it easy to find Detroit to Dulles Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Detroit to Dulles Intl?

Cheapflights simply makes it quick and affordable to book flights from Detroit to Dulles Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Detroit to Dulles Intl with no change fees?

Certainly. Search results for flights to Dulles Intl from Detroit shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Cheap flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport from C$ 205

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 27 October 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 27 October 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 27 October 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 27 October 2026.

Direct flights from Detroit to Dulles IntlExplore direct flight options from Detroit to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 October 2026.

Explore direct flight options from Detroit to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 October 2026.

Last-minute flights from Detroit to Dulles IntlDiscover last-minute flight deals from Detroit to Dulles Intl. Data last updated 27 October 2026 and is based on user searches.

Discover last-minute flight deals from Detroit to Dulles Intl. Data last updated 27 October 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 27 October 2026.

Search for one-way flight options from Detroit to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 27 October 2026.

Find flight deals from Detroit to Dulles Intl

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One-way from

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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.

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?

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?

It’s optimal to fly from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the evening.

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 C$ 349 and C$ 576 in November.The cheapest round-trip price found within the last 5 days was C$ 217 on United Airlines (14 Nov-18 Nov).

Related info for your journey

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 most reliable airlines 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?

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

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

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

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

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Direct flights to District of Columbia

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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 27 October 2026.

Search flights from Detroit to Dulles Intl by cabin class

Find flights from Detroit to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Detroit and Dulles Intl flights

Browse other Detroit and Dulles Intl flight options. Last updated on 27 October 2026.

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Can Cheapflights notify me if prices for flights from Detroit to Dulles Intl become cheaper?

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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 27 October 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 27 October 2026.

Direct flights from Detroit to Dulles Intl
Explore direct flight options from Detroit to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 October 2026.

Last-minute flights from Detroit to Dulles Intl
Discover last-minute flight deals from Detroit to Dulles Intl. Data last updated 27 October 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 27 October 2026.

Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport flights typically cost between C$ 349 and C$ 576 in November.
The cheapest round-trip price found within the last 5 days was C$ 217 on United Airlines (14 Nov-18 Nov).