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Cape Cod and the Islands

$100+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$217
(Delta)

One-way from

$100
(Delta)

Popular in

April

Cheapest in

January

Average price

$222
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 ($22 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 June 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 junio 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
mié. 7/96:00 amIAD - ACK
2 stops10h 05mDelta
mar. 7/1512:15 pmACK - IAD
2 stops10h 40mDelta
Deal found 6/10$217
This American Airlines deal was found by Cheapflights users on 6/12. 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.
sáb. 8/166:34 amIAD - ACK
1 stop4h 37mAmerican Airlines
sáb. 8/3011:02 amACK - IAD
2 stops8h 40mAmerican Airlines
Deal found 6/12$252
This American Airlines deal was found by Cheapflights users on 6/11. 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.
mar. 7/86:35 amIAD - MVY
2 stops7h 12mAmerican Airlines
mar. 7/152:17 pmMVY - IAD
2 stops9h 41mAmerican Airlines
Deal found 6/11$257
This United Airlines deal was found by Cheapflights users on 6/10. 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.
dom. 7/136:16 amIAD - ACK
1 stop4h 12mUnited Airlines
mié. 7/164:46 pmACK - IAD
1 stop5h 41mUnited Airlines
Deal found 6/10$301
This Delta deal was found by Cheapflights users on 6/11. 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.
mar. 7/156:00 amIAD - MVY
2 stops8h 42mDelta
mar. 7/222:13 pmMVY - IAD
1 stop5h 38mDelta
Deal found 6/11$304
This United deal was found by Cheapflights users on 6/11. 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.
mar. 7/156:15 amIAD - ACK
1 stop5h 03mMultiple Airlines
lun. 7/2110:48 pmACK - IAD
2 stops15h 52mMultiple Airlines
Deal found 6/11$435
This American Airlines deal was found by Cheapflights users on 6/12. 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.
lun. 8/114:36 pmIAD - HYA
2 stops19h 04mAmerican Airlines
sáb. 8/2312:10 pmHYA - IAD
2 stops11h 47mAmerican Airlines
Deal found 6/12$467
This United deal was found by Cheapflights users on 6/11. 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.
dom. 7/1310:18 pmIAD - PVC
1 stop17h 28mMultiple Airlines
vie. 7/251:55 pmPVC - IAD
1 stop17h 09mMultiple Airlines
Deal found 6/11$475
This United deal was found by Cheapflights users on 6/10. 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.
mar. 7/812:35 pmIAD - HYA
1 stop5h 03mMultiple Airlines
jue. 7/106:48 amHYA - IAD
1 stop24h 16mMultiple Airlines
Deal found 6/10$495
This United deal was found by Cheapflights users on 6/11. 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.
vie. 6/2010:18 pmIAD - MVY
2 stops15h 22mMultiple Airlines
lun. 6/232:34 pmMVY - IAD
2 stops20h 36mMultiple Airlines
Deal found 6/11$718

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 junio 12, 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.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

mié. 7/9

6:00 am-4:05 pm

2 stops10h 05m

Nantucket Memorial

mar. 7/15

12:15 pm-10:55 pm

2 stops10h 40m

$217

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

sáb. 8/16

6:34 am-11:11 am

1 stop4h 37m

Nantucket Memorial

sáb. 8/30

11:02 am-7:42 pm

2 stops8h 40m

$252

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

mar. 7/8

6:35 am-1:47 pm

2 stops7h 12m

West Tisbury Martha's Vineyard

mar. 7/15

2:17 pm-11:58 pm

2 stops9h 41m

$257

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

dom. 7/13

6:16 am-10:28 am

1 stop4h 12m

Nantucket Memorial

mié. 7/16

4:46 pm-10:27 pm

1 stop5h 41m

$301

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

mar. 7/15

6:00 am-2:42 pm

2 stops8h 42m

West Tisbury Martha's Vineyard

mar. 7/22

2:13 pm-7:51 pm

1 stop5h 38m

$304

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

mar. 7/15

6:15 am-11:18 am

1 stop5h 03m

Nantucket Memorial

lun. 7/21

10:48 pm-2:40 pm

2 stops15h 52m

$435

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

lun. 8/11

4:36 pm-11:40 am

2 stops19h 04m

Hyannis Barnstable

sáb. 8/23

12:10 pm-11:57 pm

2 stops11h 47m

$467

Washington, D.C.Provincetown

IAD - PVC

IADPVC

Washington, D.C. Dulles Intl

dom. 7/13

10:18 pm-3:46 pm

1 stop17h 28m

Provincetown

vie. 7/25

1:55 pm-7:04 am

1 stop17h 09m

$475

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

mar. 7/8

12:35 pm-5:38 pm

1 stop5h 03m

Hyannis Barnstable

jue. 7/10

6:48 am-7:04 am

1 stop24h 16m

$495

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

vie. 6/20

10:18 pm-1:40 pm

2 stops15h 22m

West Tisbury Martha's Vineyard

lun. 6/23

2:34 pm-11:10 am

2 stops20h 36m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 19 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

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 junio 12, 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
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $100. Users have also found prices from $123 and $123 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

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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.
Reagan-National to Boston flights
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Dulles Intl to Hyannis flights
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Dulles Intl to New Bedford flights
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