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Dulles Intl

$557+ 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
ACK — IAD
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Find flight deals from Cape Cod and the Islands to Dulles Intl

One-way flights from Cape Cod and the Islands to Dulles Intl
Search for one-way flight options from Cape Cod and the Islands to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated November 20, 2025.

This Mytrip deal was found by Cheapflights users on 11/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/306:05 pmACK - IAD
3 stops23h 12mMultiple Airlines
Deal found 11/18$557
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Sun 11/304:10 pmMVY - IAD
2 stops31h 49mMultiple Airlines
Deal found 11/19$702
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Sat 11/294:10 pmMVY - IAD
3 stops43h 42mMultiple Airlines
Deal found 11/19$724
This Travelocity deal was found by Cheapflights users on 11/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:00 amACK - IAD
2 stops16h 59mMultiple Airlines
Deal found 11/19$1,055

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 November 20, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Popular in

November

Cheapest in

January

Average price

$252
Provider with most accurate pricing for Boston Logan Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Washington, D.C. (WAS) flights.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
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 November 20, 2025.
Use the filters below to find and compare flights from Cape Cod and the Islands to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Cape Cod and the Islands

Fly to

Dulles Intl

Route

Depart

Return

Price

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Sun 11/30

6:05 pm-5:17 pm

3 stops23h 12m

$557

West TisburyWashington, D.C.

MVY - IAD

MVYIAD

West Tisbury Martha's Vineyard

Sun 11/30

4:10 pm-11:59 pm

2 stops31h 49m

$702

West TisburyWashington, D.C.

MVY - IAD

MVYIAD

West Tisbury Martha's Vineyard

Sat 11/29

4:10 pm-11:52 am

3 stops43h 42m

$724

NantucketWashington, D.C.

ACK - IAD

ACKIAD

Nantucket Memorial

Sun 5/17

7:00 am-11:59 pm

2 stops16h 59m

$1,055

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

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.

Cheapflights Insights

Everything you need to know about your flight from Cape Cod and the Islands to Washington, D.C. Dulles Intl Airport
No data available for this route at this time. Please check back soon.

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 West Tisbury Martha's Vineyard - Washington, D.C. Dulles Intl. You may also consider Nantucket Memorial - Washington, D.C. Dulles Intl or Hyannis Barnstable - 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.

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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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