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Nantucket

$124+ Cheap flights from Dulles Intl (IAD) to Nantucket (ACK)

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Dulles Intl to Nantucket

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Nantucket (ACK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$251
(Delta)

One-way from

$124
(United Airlines)

Popular in

April

Cheapest in

January

Average price

$227
From Washington, D.C. Dulles Intl to Nantucket Memorial
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One-way flight from Washington, D.C. Dulles Intl to Nantucket Memorial
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Highest demand for flights based on searches. 6% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Dulles Intl to Nantucket

Cheapest flights from Dulles Intl to Nantucket
Explore the most affordable flight options available from Dulles Intl to Nantucket. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:20 amIAD - ACK
1 stop3h 35mUnited Airlines
Tue 9/164:31 pmACK - IAD
1 stop4h 10mUnited Airlines
Deal found 8/12$223
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:00 amIAD - ACK
2 stops10h 09mDelta
Thu 8/283:26 pmACK - IAD
1 stop4h 17mDelta
Deal found 8/12$237
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/268:40 amIAD - ACK
1 stop6h 40mUnited Airlines
Thu 8/286:46 pmACK - IAD
1 stop4h 13mUnited Airlines
Deal found 8/12$251
This Delta deal was found by Cheapflights users on 8/13. 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.
Sat 8/308:23 pmIAD - ACK
1 stop18h 23mDelta
Fri 9/53:26 pmACK - IAD
1 stop4h 17mDelta
Deal found 8/13$256
This Delta deal was found by Cheapflights users on 8/13. 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 9/28:23 pmIAD - ACK
1 stop18h 23mDelta
Fri 9/53:26 pmACK - IAD
1 stop4h 17mDelta
Deal found 8/13$265
This Delta deal was found by Cheapflights users on 8/13. 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 9/28:23 pmIAD - ACK
1 stop18h 23mDelta
Thu 9/43:26 pmACK - IAD
1 stop4h 17mDelta
Deal found 8/13$270
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/286:20 amIAD - ACK
1 stop3h 35mUnited Airlines
Mon 9/14:05 pmACK - IAD
1 stop6h 54mUnited Airlines
Deal found 8/13$276
This United Airlines deal was found by Cheapflights users on 8/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/316:20 amIAD - ACK
1 stop3h 35mUnited Airlines
Thu 9/44:16 pmACK - IAD
1 stop6h 23mUnited Airlines
Deal found 8/11$284

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Nantucket 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 August 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Nantucket that are best for you.

Fly from

Dulles Intl

Fly to

Nantucket

Route

Depart

Return

Price

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 8/30

8:23 pm-2:46 pm

1 stop18h 23m

Nantucket Memorial

Thu 9/4

3:26 pm-7:43 pm

1 stop4h 17m

$251

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 8/30

8:23 pm-2:46 pm

1 stop18h 23m

Nantucket Memorial

Fri 9/5

3:26 pm-7:43 pm

1 stop4h 17m

$256

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 9/2

8:23 pm-2:46 pm

1 stop18h 23m

Nantucket Memorial

Fri 9/5

3:26 pm-7:43 pm

1 stop4h 17m

$265

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 9/2

8:23 pm-2:46 pm

1 stop18h 23m

Nantucket Memorial

Thu 9/4

3:26 pm-7:43 pm

1 stop4h 17m

$270

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 8/28

6:20 am-9:55 am

1 stop3h 35m

Nantucket Memorial

Mon 9/1

4:05 pm-10:59 pm

1 stop6h 54m

$276

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 9/9

6:20 am-9:55 am

1 stop3h 35m

Nantucket Memorial

Tue 9/16

4:31 pm-8:41 pm

1 stop4h 10m

$288

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sun 8/31

6:20 am-9:55 am

1 stop3h 35m

Nantucket Memorial

Thu 9/4

4:16 pm-8:41 pm

1 stop4h 25m

$322

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Mon 9/1

6:20 am-9:55 am

1 stop3h 35m

Nantucket Memorial

Thu 9/4

4:16 pm-8:41 pm

1 stop4h 25m

$322

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 8/29

8:23 pm-2:46 pm

1 stop18h 23m

Nantucket Memorial

Thu 9/4

3:26 pm-7:43 pm

1 stop4h 17m

$326

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sun 8/31

6:20 am-9:55 am

1 stop3h 35m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 20 results
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Best time to book a flight from Dulles Intl to Nantucket

Have a flexible travel schedule? Discover the best time to fly to Nantucket 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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Nantucket. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Nantucket from Washington, D.C. Dulles Intl?

    Nantucket Memorial (ACK) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Nantucket. You should not have trouble finding flights to Memorial from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Nantucket airport from Washington, D.C. Dulles Intl. It is only a 2.8 mi journey from Memorial (ACK) to Nantucket’s city center.

  • Can I find deals for flights from Dulles Intl to Nantucket that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to Nantucket?

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

  • Can I find deals for business class flights from Dulles Intl to Nantucket?

    Yes. Cheapflights offers flight deals from Dulles Intl to Nantucket by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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