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Cape Cod and the Islands

$214+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Mar 3 — Mar 101
Mon 3/3
Mon 3/10
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 February 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$282
(Delta)

One-way from

$214
(Delta)

Popular in

November

Cheapest in

May
Provider with most accurate pricing for Washington, D.C. (WAS)-Nantucket Memorial flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Nantucket Memorial 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. 31% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 12% potential price decrease ($49 potential savings vs. average RT price).
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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 February 26, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/89:30 amIAD - MVY
2 stops6h 39mDelta
Tue 7/152:50 pmMVY - IAD
1 stop3h 38mDelta
Deal found 2/25$282
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:10 amIAD - ACK
2 stops9h 07mDelta
Thu 9/42:50 pmACK - IAD
1 stop3h 38mDelta
Deal found 2/25$423
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.
Wed 7/96:15 amIAD - ACK
1 stop4h 10mUnited Airlines
Wed 7/164:20 pmACK - IAD
1 stop6h 03mUnited Airlines
Deal found 2/25$488
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/95:48 pmIAD - HYA
2 stops18h 35mAmerican Airlines
Sat 8/231:05 pmHYA - IAD
2 stops11h 01mAmerican Airlines
Deal found 2/26$496
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.
Sat 3/18:35 amIAD - HYA
2 stops6h 05mMultiple Airlines
Tue 3/43:50 pmHYA - IAD
1 stop15h 29mMultiple Airlines
Deal found 2/26$516
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2811:18 amIAD - MVY
2 stops26h 25mAmerican Airlines
Fri 7/45:17 pmMVY - IAD
2 stops17h 31mAmerican Airlines
Deal found 2/26$542
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.
Thu 9/1810:24 pmIAD - PVC
1 stop16h 11mMultiple Airlines
Mon 9/2211:39 amPVC - IAD
1 stop19h 55mMultiple Airlines
Deal found 2/26$635
This United Airlines 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/138:50 amIAD - ACK
2 stops5h 18mMultiple Airlines
Mon 3/172:22 pmACK - IAD
2 stops7h 00mMultiple Airlines
Deal found 2/26$756
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/108:14 pmIAD - ACK
2 stops21h 24mAmerican Airlines
Sat 7/121:46 pmACK - IAD
2 stops18h 54mAmerican Airlines
Deal found 2/26$758
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.
Sat 6/1410:18 pmIAD - MVY
1 stop11h 51mMultiple Airlines
Thu 6/191:15 pmMVY - IAD
1 stop17h 49mMultiple Airlines
Deal found 2/25$1,019

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

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 February 26, 2025.

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

Tue 7/8

9:30 am-4:09 pm

2 stops6h 39m

West Tisbury Martha's Vineyard

Tue 7/15

2:50 pm-6:28 pm

1 stop3h 38m

$282

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 7/9

6:10 am-3:17 pm

2 stops9h 07m

Nantucket Memorial

Wed 7/16

2:50 pm-6:28 pm

1 stop3h 38m

$484

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 7/9

6:15 am-10:25 am

1 stop4h 10m

Nantucket Memorial

Wed 7/16

4:20 pm-10:23 pm

1 stop6h 03m

$488

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

Sat 8/9

5:48 pm-12:23 pm

2 stops18h 35m

Hyannis Barnstable

Sat 8/23

1:05 pm-12:06 am

2 stops11h 01m

$496

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Sat 6/28

11:18 am-1:43 pm

2 stops26h 25m

West Tisbury Martha's Vineyard

Fri 7/4

5:17 pm-10:48 am

2 stops17h 31m

$542

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 3/13

8:50 am-2:08 pm

2 stops5h 18m

Nantucket Memorial

Mon 3/17

2:22 pm-9:22 pm

2 stops7h 00m

$756

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 7/10

8:14 pm-5:38 pm

2 stops21h 24m

Nantucket Memorial

Sat 7/12

1:46 pm-8:40 am

2 stops18h 54m

$758

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

Sat 6/21

10:18 pm-5:37 pm

2 stops19h 19m

Hyannis Barnstable

Sat 7/5

5:00 pm-10:23 pm

2 stops5h 23m

$856

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Sat 6/14

10:18 pm-10:09 am

1 stop11h 51m

West Tisbury Martha's Vineyard

Thu 6/19

1:15 pm-7:04 am

1 stop17h 49m

$1,019

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Tue 8/19

9:30 am-4:09 pm

2 stops6h 39m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 16 results
1
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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.

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

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

What is the cheapest time of day to fly from IAD to KDT?

Find hourly flight availability from Dulles Intl to Cape Cod and the Islands. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 26, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Cape Cod and the Islands, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Cape Cod and the Islands by month

Plan your trip to Cape Cod and the Islands by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cape Cod and the Islands ranges from 1.6 - 4.3 inches per month. January is typically the wettest month, when rainfall can reach 4.3 in. June is typically the driest time to visit Cape Cod and the Islands when rainfall is around 1.6 in.

Temperature in Cape Cod and the Islands by month

Plan your trip to Cape Cod and the Islands by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cape Cod and the Islands, 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 66.2 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Cape Cod and the Islands

Get insights into the airlines that provide service to Cape Cod and the Islands. 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 Cape Cod and the Islands. Reviews last updated February 26, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Cape Cod and the Islands, such as Delta, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,151 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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
8,151 reviews
Delta
8.0
Very good
8,151 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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

United Airlines
7.4
Good
8,732 reviews
Delta
8.0
Very good
8,151 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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
8,151 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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 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 cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Cape Cod and the Islands one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $214. Users have also found prices from $337 and $361 on United Airlines and American Airlines, respectively.

  • 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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