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Dulles Intl

$138+ Cheap flights from Cape Cod and the Islands 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
ACK — IAD
Mar 3 — Mar 101
Mon 3/3
Mon 3/10
1 adult, Economy
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Cheap flight deals from Cape Cod and the Islands to Dulles Intl

Keep the following information in mind while searching for Cape Cod and the Islands to Dulles Intl flight deals. Data was last updated February 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$656
(United)

One-way from

$138
(Delta)

Popular in

April

Cheapest in

January

Average price

$206
Provider with most accurate pricing for Boston Logan Intl-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Washington, D.C. (WAS) flights.
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From Cape Cod and the Islands to Washington, D.C. Dulles Intl
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One-way flight from Cape Cod and the Islands to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 13% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Cape Cod and the Islands to Dulles Intl

Cheapest flights from Cape Cod and the Islands to Dulles Intl
Explore the most affordable flight options available from Cape Cod and the Islands to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2025.

This United deal was found by Cheapflights users on 2/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/208:45 amMVY - IAD
2 stops11h 27mMultiple Airlines
Mon 3/2410:15 pmIAD - MVY
1 stop14h 30mMultiple Airlines
Deal found 2/25$656
This Delta deal was found by Cheapflights users on 2/26. 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 6/122:50 pmACK - IAD
1 stop3h 38mDelta
Sat 6/146:10 amIAD - ACK
2 stops9h 07mDelta
Deal found 2/26$693
This American Airlines deal was found by Cheapflights users on 2/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/271:47 pmHYA - IAD
2 stops10h 12mAmerican Airlines
Mon 6/305:41 pmIAD - HYA
2 stops18h 22mAmerican Airlines
Deal found 2/24$831
This United deal was found by Cheapflights users on 2/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:45 amACK - IAD
1 stop4h 25mMultiple Airlines
Sun 6/158:40 amIAD - ACK
1 stop6h 20mMultiple Airlines
Deal found 2/26$1,204

Find flights from Cape Cod and the Islands to Dulles Intl within your budget

Customize your flight search to find flights from Cape Cod and the Islands 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 February 26, 2025.

Fly from

Cape Cod and the Islands

Fly to

Dulles Intl

Route

Depart

Return

Price

West TisburyWashington, D.C.

MVY - IAD

MVYIAD

West Tisbury Martha's Vineyard

Thu 3/20

8:45 am-8:12 pm

2 stops11h 27m

Washington, D.C. Dulles Intl

Mon 3/24

10:15 pm-12:45 pm

1 stop14h 30m

$656

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Thu 6/12

2:50 pm-6:28 pm

1 stop3h 38m

Washington, D.C. Dulles Intl

Sat 6/14

6:10 am-3:17 pm

2 stops9h 07m

$693

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Fri 6/27

1:47 pm-11:59 pm

2 stops10h 12m

Washington, D.C. Dulles Intl

Mon 6/30

5:41 pm-12:03 pm

2 stops18h 22m

$831

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Fri 6/13

6:45 am-11:10 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Sun 6/15

8:40 am-3:00 pm

1 stop6h 20m

$1,204

West TisburyWashington, D.C.

MVY - IAD

MVYIAD

West Tisbury Martha's Vineyard

Tue 6/10

2:50 pm-6:28 pm

1 stop3h 38m

$138

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Sun 4/13

11:25 am-7:11 am

1 stop19h 46m

$343

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Wed 4/23

8:30 am-2:26 pm

1 stop5h 56m

$432

West TisburyWashington, D.C.

MVY - IAD

MVYIAD

West Tisbury Martha's Vineyard

Mon 7/7

2:20 pm-10:23 pm

2 stops8h 03m

$461

West TisburyWashington, D.C.

MVY - IAD

MVYIAD

West Tisbury Martha's Vineyard

Sun 7/6

5:17 pm-11:59 pm

2 stops6h 42m

$605

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/25

Best time to book a flight from Cape Cod and the Islands to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Cape Cod and the Islands 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.

Travel insights for flights from Cape Cod and the Islands to Dulles Intl

Get recent, data-driven insights about flights from Cape Cod and the Islands to Dulles Intl including ideal travel times, pricing trends, and more.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

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 February 26, 2025.
Delta
8.0
Very good
8,149 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,149 reviews
Delta
8.0
Very good
8,149 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,149 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Cape Cod and the Islands 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 are the most popular routes from Cape Cod and the Islands to Washington, D.C. Dulles Intl Airport?

    The most popular route from Cape Cod and the Islands to Washington, D.C. Dulles Intl Airport is Hyannis Barnstable - Washington, D.C. Dulles Intl. You may also consider West Tisbury Martha's Vineyard - Washington, D.C. Dulles Intl or Nantucket Memorial - Washington, D.C. Dulles Intl.

  • Can I find deals for flights from Cape Cod and the Islands to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from Cape Cod and the Islands to Dulles Intl?

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

  • Can I find deals for business class flights from Cape Cod and the Islands to Dulles Intl?

    Yes. Cheapflights offers flight deals from Cape Cod and the Islands 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 Cape Cod and the Islands to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Cape Cod and the Islands to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Cape Cod and the Islands to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 Cape Cod and the Islands?

Book flights to Cape Cod and the Islands if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Laurel
Falls Church
Woodbridge
Easton
Herndon
Sterling
Bowie
Reston
Gettysburg
National Harbor

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