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Cape Cod and the Islands

$263+ Cheap flights from Dulles Intl (IAD) to Cape Cod and the Islands

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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
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Cheap flight deals from Dulles Intl to Cape Cod and the Islands

Keep the following information in mind while searching for Dulles Intl to Cape Cod and the Islands flight deals. Data was last updated October 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$544
(United)

One-way from

$263
(United)

Popular in

August

Cheapest in

January

Average price

$217
Provider with most accurate pricing for Washington, D.C. (WAS)-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boston Logan Intl flights.
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From Washington, D.C. Dulles Intl to Cape Cod and the Islands
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One-way flight from Washington, D.C. Dulles Intl to Cape Cod and the Islands
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Highest demand for flights based on searches. 10% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Dulles Intl to Cape Cod and the Islands

Cheapest flights from Dulles Intl to Cape Cod and the Islands
Explore the most affordable flight options available from Dulles Intl to Cape Cod and the Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 2, 2025.

This United deal was found by Cheapflights users on 10/2. 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.
Sun 11/25:00 amIAD - MVY
2 stops6h 39mMultiple Airlines
Mon 11/31:34 pmMVY - IAD
1 stop17h 39mMultiple Airlines
Deal found 10/2$659
This United deal was found by Cheapflights users on 10/2. 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 10/3110:07 pmIAD - MVY
1 stop11h 42mMultiple Airlines
Fri 11/71:34 pmMVY - IAD
1 stop17h 39mMultiple Airlines
Deal found 10/2$664
This United deal was found by Cheapflights users on 10/1. 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.
Wed 10/2212:35 pmIAD - MVY
2 stops8h 10mMultiple Airlines
Wed 10/294:10 pmMVY - IAD
1 stop15h 03mMultiple Airlines
Deal found 10/1$769
This United deal was found by Cheapflights users on 10/2. 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 10/306:00 amIAD - MVY
2 stops9h 50mMultiple Airlines
Sun 11/24:10 pmMVY - IAD
1 stop15h 03mMultiple Airlines
Deal found 10/2$809
This United deal was found by Cheapflights users on 10/1. 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.
Sat 10/1110:19 pmIAD - MVY
2 stops16h 06mMultiple Airlines
Mon 10/138:50 pmMVY - IAD
2 stops14h 24mMultiple Airlines
Deal found 10/1$871
This United deal was found by Cheapflights users on 10/1. 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 10/36:15 amIAD - MVY
2 stops6h 55mMultiple Airlines
Sun 10/58:40 pmMVY - IAD
2 stops14h 34mMultiple Airlines
Deal found 10/1$940
This United deal was found by Cheapflights users on 10/1. 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.
Sun 10/56:15 amIAD - ACK
2 stops6h 20mMultiple Airlines
Mon 10/62:47 pmACK - IAD
1 stop6h 05mMultiple Airlines
Deal found 10/1$1,059
This United deal was found by Cheapflights users on 9/30. 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.
Wed 10/110:19 pmIAD - ACK
2 stops16h 06mMultiple Airlines
Wed 10/88:26 amACK - IAD
1 stop12h 26mMultiple Airlines
Deal found 9/30$1,061
This United deal was found by Cheapflights users on 9/29. 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.
Sat 12/69:00 amIAD - ACK
1 stop8h 40mMultiple Airlines
Mon 12/81:35 pmACK - IAD
1 stop17h 39mMultiple Airlines
Deal found 9/29$1,066
This United deal was found by Cheapflights users on 9/30. 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.
Wed 10/1510:19 pmIAD - ACK
1 stop10h 50mMultiple Airlines
Fri 10/176:49 amACK - IAD
1 stop14h 03mMultiple Airlines
Deal found 9/30$1,084
This United deal was found by Cheapflights users on 9/30. 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 10/1010:19 pmIAD - HYA
1 stop17h 05mMultiple Airlines
Mon 10/139:57 amHYA - IAD
1 stop21h 14mMultiple Airlines
Deal found 9/30$1,105
This United deal was found by Cheapflights users on 9/30. 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 10/212:35 pmIAD - ACK
1 stop4h 34mMultiple Airlines
Fri 10/35:00 pmACK - IAD
1 stop3h 52mMultiple Airlines
Deal found 9/30$1,204

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Cape Cod and the Islands 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 October 2, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cape Cod and the Islands that are best for you.

Fly from

Dulles Intl

Fly to

Cape Cod and the Islands

Route

Depart

Return

Price

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Sat 11/1

10:07 pm-10:49 am

1 stop12h 42m

West Tisbury Martha's Vineyard

Tue 11/4

4:10 pm-7:13 am

1 stop15h 03m

$544

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Sun 11/2

5:00 am-11:39 am

2 stops6h 39m

West Tisbury Martha's Vineyard

Mon 11/3

1:34 pm-7:13 am

1 stop17h 39m

$659

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Fri 10/31

10:07 pm-2:09 pm

2 stops16h 02m

West Tisbury Martha's Vineyard

Fri 11/7

1:34 pm-7:13 am

1 stop17h 39m

$681

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Wed 10/22

12:35 pm-8:45 pm

2 stops8h 10m

West Tisbury Martha's Vineyard

Wed 10/29

4:10 pm-7:13 am

1 stop15h 03m

$769

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Thu 10/30

6:00 am-3:50 pm

2 stops9h 50m

West Tisbury Martha's Vineyard

Sun 11/2

4:10 pm-7:13 am

1 stop15h 03m

$809

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Fri 10/17

10:35 pm-3:50 pm

2 stops17h 15m

West Tisbury Martha's Vineyard

Mon 10/20

4:10 pm-7:11 am

1 stop15h 01m

$878

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 12/6

9:00 am-5:40 pm

1 stop8h 40m

Nantucket Memorial

Mon 12/8

1:35 pm-7:14 am

1 stop17h 39m

$1,066

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 10/15

10:19 pm-9:09 am

1 stop10h 50m

Nantucket Memorial

Fri 10/17

6:49 am-8:52 pm

1 stop14h 03m

$1,084

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

Sat 10/25

12:35 pm-6:39 pm

1 stop6h 04m

$263

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

Sun 10/26

3:10 pm-10:30 am

2 stops43h 20m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/1

Showing 1-10 of 23 results
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Best time to book a flight from Dulles Intl to Cape Cod and the Islands

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Cape Cod and the Islands 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

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Alternative routes for Dulles Intl to Cape Cod and the Islands

See prices for flight routes from nearby airports that may be better suited for you.
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