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Cape Cod and the Islands

$159+ 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
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 abril 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$232
(Delta)

One-way from

$159
(Delta)
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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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 abril 29, 2025.

This Delta deal was found by Cheapflights users on 4/28. 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 stops8h 42mDelta
mié. 7/163:22 pmACK - IAD
1 stop4h 29mDelta
Deal found 4/28$212
This American Airlines deal was found by Cheapflights users on 4/29. 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 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 4/29$277
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/86:00 amIAD - MVY
2 stops8h 40mDelta
mar. 7/152:13 pmMVY - IAD
1 stop5h 38mDelta
Deal found 4/29$292
This American Airlines deal was found by Cheapflights users on 4/28. 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. 7/286:35 amIAD - ACK
2 stops6h 28mAmerican Airlines
jue. 7/311:38 pmACK - IAD
2 stops10h 20mAmerican Airlines
Deal found 4/28$329
This United Airlines deal was found by Cheapflights users on 4/29. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/308:35 amIAD - ACK
1 stop6h 35mUnited Airlines
mié. 7/24:10 pmACK - IAD
1 stop6h 17mUnited Airlines
Deal found 4/29$438
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/118:19 pmIAD - HYA
2 stops15h 21mAmerican Airlines
sáb. 8/2312:10 pmHYA - IAD
2 stops11h 49mAmerican Airlines
Deal found 4/29$477
This United deal was found by Cheapflights users on 4/29. 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.
jue. 6/1210:18 pmIAD - PVC
1 stop10h 18mMultiple Airlines
sáb. 6/143:33 pmPVC - IAD
1 stop15h 31mMultiple Airlines
Deal found 4/29$560
This United deal was found by Cheapflights users on 4/29. 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.
mié. 4/308:25 amIAD - HYA
2 stops6h 15mMultiple Airlines
mié. 5/711:25 amHYA - IAD
1 stop19h 46mMultiple Airlines
Deal found 4/29$623
This United deal was found by Cheapflights users on 4/29. 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.
lun. 5/268:40 amIAD - MVY
1 stop4h 40mMultiple Airlines
jue. 5/298:05 amMVY - IAD
1 stop8h 13mMultiple Airlines
Deal found 4/29$754
This United deal was found by Cheapflights users on 4/27. 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.
jue. 6/266:15 amIAD - ACK
2 stops5h 35mMultiple Airlines
lun. 6/304:10 pmACK - IAD
1 stop4h 52mMultiple Airlines
Deal found 4/27$832
This United deal was found by Cheapflights users on 4/28. 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. 7/48:35 amIAD - EWB
2 stops9h 16mMultiple Airlines
lun. 7/711:27 amEWB - IAD
2 stops35h 00mMultiple Airlines
Deal found 4/28$869

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 abril 29, 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-2:42 pm

2 stops8h 42m

Nantucket Memorial

mié. 7/16

3:22 pm-7:51 pm

1 stop4h 29m

$212

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

$277

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

mar. 7/8

6:00 am-2:40 pm

2 stops8h 40m

West Tisbury Martha's Vineyard

mar. 7/15

2:13 pm-7:51 pm

1 stop5h 38m

$292

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

lun. 7/28

6:35 am-1:03 pm

2 stops6h 28m

Nantucket Memorial

jue. 7/31

1:38 pm-11:58 pm

2 stops10h 20m

$329

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

lun. 6/30

8:35 am-3:10 pm

1 stop6h 35m

Nantucket Memorial

mié. 7/2

4:10 pm-10:27 pm

1 stop6h 17m

$438

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

lun. 8/11

8:19 pm-11:40 am

2 stops15h 21m

Hyannis Barnstable

sáb. 8/23

12:10 pm-11:59 pm

2 stops11h 49m

$477

Washington, D.C.Provincetown

IAD - PVC

IADPVC

Washington, D.C. Dulles Intl

jue. 6/12

10:18 pm-8:36 am

1 stop10h 18m

Provincetown

sáb. 6/14

3:33 pm-7:04 am

1 stop15h 31m

$560

Washington, D.C.West Tisbury

IAD - MVY

IADMVY

Washington, D.C. Dulles Intl

lun. 5/26

8:40 am-1:20 pm

1 stop4h 40m

West Tisbury Martha's Vineyard

jue. 5/29

8:05 am-4:18 pm

1 stop8h 13m

$754

Washington, D.C.Hyannis

IAD - HYA

IADHYA

Washington, D.C. Dulles Intl

dom. 7/27

6:15 am-6:45 pm

2 stops12h 30m

Hyannis Barnstable

mié. 8/13

11:45 am-4:01 pm

2 stops28h 16m

$766

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

jue. 6/26

6:15 am-11:50 am

2 stops5h 35m

Nantucket Memorial

lun. 6/30

4:10 pm-9:02 pm

1 stop4h 52m

$832

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 21 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

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 abril 29, 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 abril 29, 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
7,929 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

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
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

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
7,929 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

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 $159. Users have also found prices from $214 and $294 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 - West Tisbury Martha's Vineyard. You may also consider Washington, D.C. Dulles Intl - Nantucket Memorial 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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