HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cape Cod and the Islands

$164+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Cape Cod and the Islands with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$272
(Delta)

One-way from

$164
(Delta)
Provider with most accurate pricing for Washington, D.C. (WAS)-Nantucket Memorial flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Nantucket Memorial flights.
Search Deals
From Washington, D.C. Dulles Intl to Cape Cod and the Islands
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Cape Cod and the Islands
Search Deals

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 April 17, 2025.

This Delta deal was found by Cheapflights users on 4/16. 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 stop4h 47mDelta
Deal found 4/16$272
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 7/86:35 amIAD - MVY
2 stops7h 12mAmerican Airlines
Tue 7/152:17 pmMVY - IAD
2 stops9h 41mAmerican Airlines
Deal found 4/17$277
This Delta deal was found by Cheapflights users on 4/16. 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 6/106:00 amIAD - ACK
2 stops10h 05mDelta
Thu 6/123:20 pmACK - IAD
1 stop4h 30mDelta
Deal found 4/16$293
This American Airlines deal was found by Cheapflights users on 4/16. 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 7/49:10 amIAD - ACK
2 stops8h 28mAmerican Airlines
Fri 7/116:08 pmACK - IAD
2 stops16h 29mAmerican Airlines
Deal found 4/16$376
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 7/96:15 amIAD - ACK
1 stop4h 13mUnited Airlines
Wed 7/164:10 pmACK - IAD
1 stop6h 17mUnited Airlines
Deal found 4/16$484
This United deal was found by Cheapflights users on 4/15. 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 5/1510:19 pmIAD - PVC
1 stop12h 56mMultiple Airlines
Thu 5/227:30 amPVC - IAD
2 stops6h 57mMultiple Airlines
Deal found 4/15$565
This American Airlines deal was found by Cheapflights users on 4/17. 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 7/175:39 pmIAD - HYA
2 stops19h 29mAmerican Airlines
Tue 7/2212:19 pmHYA - IAD
2 stops11h 39mAmerican Airlines
Deal found 4/17$600
This United deal was found by Cheapflights users on 4/17. 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 4/1810:19 pmIAD - HYA
1 stop11h 51mMultiple Airlines
Fri 4/2511:00 amHYA - IAD
1 stop20h 11mMultiple Airlines
Deal found 4/17$633
This United deal was found by Cheapflights users on 4/16. 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 5/1610:19 pmIAD - MVY
1 stop15h 51mMultiple Airlines
Fri 5/237:28 pmMVY - IAD
2 stops20h 50mMultiple Airlines
Deal found 4/16$813
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Sat 6/79:43 pmIAD - ACK
2 stops19h 23mMultiple Airlines
Wed 6/111:51 pmACK - IAD
2 stops30h 34mMultiple Airlines
Deal found 4/16$836

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 April 17, 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

Tue 7/8

9:30 am-4:09 pm

2 stops6h 39m

West Tisbury Martha's Vineyard

Tue 7/15

2:50 pm-7:37 pm

1 stop4h 47m

$272

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Tue 7/8

6:35 am-1:47 pm

2 stops7h 12m

West Tisbury Martha's Vineyard

Tue 7/15

2:17 pm-11:58 pm

2 stops9h 41m

$277

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 6/10

6:00 am-4:05 pm

2 stops10h 05m

Nantucket Memorial

Thu 6/12

3:20 pm-7:50 pm

1 stop4h 30m

$293

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 7/4

9:10 am-5:38 pm

2 stops8h 28m

Nantucket Memorial

Fri 7/11

6:08 pm-10:37 am

2 stops16h 29m

$376

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 7/9

6:15 am-10:28 am

1 stop4h 13m

Nantucket Memorial

Wed 7/16

4:10 pm-10:27 pm

1 stop6h 17m

$484

Washington, D.C.Provincetown

IAD - PVC

IADPVC

Washington, D.C. Dulles Intl

Thu 5/15

10:19 pm-11:15 am

1 stop12h 56m

Provincetown

Thu 5/22

7:30 am-2:27 pm

2 stops6h 57m

$565

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

Thu 7/17

5:39 pm-1:08 pm

2 stops19h 29m

Hyannis Barnstable

Tue 7/22

12:19 pm-11:58 pm

2 stops11h 39m

$600

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

Sat 7/12

5:10 pm-3:45 pm

1 stop22h 35m

Hyannis Barnstable

Wed 7/16

6:48 am-7:04 am

1 stop24h 16m

$805

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

Fri 5/16

10:19 pm-2:10 pm

1 stop15h 51m

West Tisbury Martha's Vineyard

Fri 5/23

7:28 pm-4:18 pm

2 stops20h 50m

$813

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 6/7

9:43 pm-5:06 pm

2 stops19h 23m

Nantucket Memorial

Wed 6/11

1:51 pm-8:25 pm

2 stops30h 34m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 17 results
1
2

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

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 April 17, 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 April 17, 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
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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 $164. Users have also found prices from $204 and $248 on American Airlines and United 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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.
Reagan-National to Boston flights
Dulles Intl to Boston flights
Baltimore to Boston flights
Reagan-National to Hartford flights
Baltimore to Hartford flights
Dulles Intl to Hartford flights
Dulles Intl to Albany flights
Reagan-National to West Tisbury flights
Reagan-National to Albany flights
Reagan-National to Nantucket flights
Dulles Intl to Nantucket flights
Dulles Intl to West Tisbury flights
Baltimore to Nantucket flights
Baltimore to West Tisbury flights
Baltimore to Albany flights
Reagan-National to Hyannis flights
Dulles Intl to Hyannis flights
Baltimore to Worcester flights
Reagan-National to Provincetown flights
Dulles Intl to Worcester flights
Dulles Intl to Provincetown flights
Baltimore to Hyannis flights
Baltimore to Provincetown flights
Dulles Intl to New Bedford flights
Baltimore to New Bedford flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.