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).

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

It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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 22 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.

$69+ Flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport

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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 August, booked 64 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Detroit to Dulles Intl

Round-trip from	$137 (Delta)
One-way from	$69 (United Airlines)
Popular in	October
Cheapest in	September
Average price	$244
Good round-trip deal	$284 or less
Good one-way deal	$152 or less

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

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

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Highest demand for flights based on searches. 4% potential increase in price ($11 potential increase over avg. RT price).

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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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

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Find 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 July 29, 2025.

Sat 8/309:55 pmDTW - IAD

Nonstop1h 31mDelta

Tue 9/26:00 amIAD - DTW

Nonstop1h 30mDelta

Deal found 7/27

$137

Thu 9/46:00 amDTW - IAD

Nonstop1h 35mUnited Airlines

Sun 9/75:53 pmIAD - DTW

1 stop5h 03mUnited Airlines

Deal found 7/27

$173

Sun 8/242:46 pmDTW - IAD

1 stop6h 02mFrontier

Sun 8/3110:22 amIAD - DTW

1 stop7h 38mFrontier

Deal found 7/27

$175

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 July 29, 2025.

Sat 8/309:55 pmDTW - IAD

Nonstop1h 31mDelta

Tue 9/26:00 amIAD - DTW

Nonstop1h 30mDelta

Deal found 7/27

$137

Thu 9/46:00 amDTW - IAD

Nonstop1h 35mUnited Airlines

Sun 9/75:53 pmIAD - DTW

1 stop5h 03mUnited Airlines

Deal found 7/27

$173

Sun 8/242:46 pmDTW - IAD

1 stop6h 02mFrontier

Sun 8/3110:22 amIAD - DTW

1 stop7h 38mFrontier

Deal found 7/27

$175

Last-minute flights from Detroit to Dulles Intl
Discover last-minute flight deals from Detroit to Dulles Intl. Data last updated July 29, 2025 and is based on user searches.

Tue 8/512:18 pmDTW - IAD

1 stop12h 01mFrontier

Wed 8/66:10 amIAD - DTW

1 stop5h 15mFrontier

Deal found 7/28

$177

Tue 8/56:00 amDTW - IAD

Nonstop1h 35mUnited Airlines

Tue 8/125:13 pmIAD - DTW

1 stop4h 52mUnited Airlines

Deal found 7/28

$230

Thu 8/79:25 pmDTW - IAD

Nonstop1h 30mDelta

Mon 8/186:00 amIAD - DTW

Nonstop1h 30mDelta

Deal found 7/27

$219

Thu 8/78:06 amDTW - IAD

1 stop4h 42mAmerican Airlines

Mon 8/187:25 pmIAD - DTW

2 stops13h 47mAmerican Airlines

Deal found 7/27

$368

Thu 8/75:16 pmDTW - IAD

3 stops21h 07mMultiple Airlines

Fri 8/85:40 pmIAD - DTW

3 stops28h 15mMultiple Airlines

Deal found 7/26

$371

Sun 8/242:46 pmDTW - IAD

1 stop6h 02mFrontier

Sun 8/3110:22 amIAD - DTW

1 stop7h 38mFrontier

Deal found 7/27

$175

Mon 8/256:00 amDTW - IAD

Nonstop1h 35mUnited Airlines

Mon 9/110:18 pmIAD - DTW

Nonstop1h 41mUnited Airlines

Deal found 7/27

$163

Sat 8/309:55 pmDTW - IAD

Nonstop1h 31mDelta

Tue 9/26:00 amIAD - DTW

Nonstop1h 30mDelta

Deal found 7/27

$137

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 July 29, 2025.

Sat 8/306:00 amDTW - IAD

Nonstop1h 35mUnited Airlines

Deal found 7/29

$69

Wed 10/12:52 pmDTW - IAD

1 stop5h 03mFrontier

Deal found 7/26

$83

Sun 8/319:55 pmDTW - IAD

Nonstop1h 31mDelta

Deal found 7/29

$90

Sat 8/305:30 pmDTW - IAD

2 stops17h 14mMultiple Airlines

Deal found 7/27

$118

Wed 9/39:23 amDTW - IAD

1 stop4h 28mAmerican Airlines

Deal found 7/27

$126

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

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Sat 8/30

9:55 pm-11:26 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 9/2

6:00 am-7:30 am

Nonstop1h 30m

$137

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Thu 9/4

6:00 am-7:35 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Sun 9/7

5:53 pm-10:56 pm

1 stop5h 03m

$173

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Sun 8/24

2:46 pm-8:48 pm

1 stop6h 02m

Washington, D.C. Dulles Intl

Sun 8/31

10:22 am-6:00 pm

1 stop7h 38m

$175

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Sat 8/30

6:00 am-7:35 am

Nonstop1h 35m

$69

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Wed 10/1

2:52 pm-7:55 pm

1 stop5h 03m

$83

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Sun 8/31

9:55 pm-11:26 pm

Nonstop1h 31m

$90

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Sat 8/30

5:30 pm-10:44 am

2 stops17h 14m

$118

DetroitWashington, D.C.

DTW - IAD

DTWIAD

Detroit Metropolitan Wayne County

Wed 9/3

9:23 am-1:51 pm

1 stop4h 28m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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

Airports

DTW

Security lines at DTW are short, typically under 10 minutes at McNamara Terminal and 15 minutes at Evans Terminal.

IAD

The Silver Line Metro reaches IAD in under 40 minutes, offering a cheap and convenient way to reach the airport.

Our travel experts

Brandon Schultz

Expert on DTW

Ramsey Qubein

Expert on IAD

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 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?

The best time to book flights from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport is 64 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, August 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 $309). Flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 morning, which can drop the price by up to 46% 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 Thursday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 Tuesday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines 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

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,238 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 22 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.
What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport round-trip?
Delta, at $137, 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 United Airlines and Frontier. Delta is 45% 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 United Airlines. According to our data, you can fly for as low as $69. Users have also found prices from $83 and $90 on Frontier and Delta, respectively.
What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport?
Consider ANA (90%), Republic Airways (90%) or United Airlines (85%) 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 $1,460, our data shows the cheapest flight currently is $89. When looking at the most popular route, (Detroit Metropolitan Wayne County - Washington, D.C. Dulles Intl), you can expect to pay $137 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, August 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 $309). Flying from Detroit Metropolitan Wayne County Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

Woodbridge

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Tysons

Silver Spring

Fredericksburg

Gaithersburg

Towson

Linthicum Heights

Easton

Fairfax

Manassas

Falls Church

Waldorf

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Rockville

Oxon Hill

National Harbor

Dundalk

Bowie

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Top 3 airlines flying from Detroit to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$107	Average$118	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$176	Average$244	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$189	Average$279	FlexibilityNo cancel fee	On-time69%

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$69+ Cheap flights from Detroit Metropolitan Wayne County Airport (DTW) 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Detroit to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Washington, D.C. Dulles Intl are usually found in September or August, booked 64 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Detroit to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 July 29, 2025.

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 July 29, 2025.

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.

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

Airports

DTW

IAD

Our travel experts

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

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?

Use this chart to determine the optimal time to book a round-trip flight from Detroit to Dulles Intl. Price data was last updated on July 25, 2025.

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?

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 July 29, 2025.

What is the cheapest day to fly from Detroit Metropolitan Wayne County Airport 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 July 27, 2025.

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

Explore weekly flight availability from Detroit to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

Reviews of airlines servicing Dulles Intl

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?

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?

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?

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

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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.

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 July 29, 2025.