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$314+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$654
(Delta)

One-way from

$314
(United Airlines)

Popular in

October

Cheapest in

February

Average price

$181
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Nantucket Memorial flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Nantucket Memorial flights.
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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. 9% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 8, 2026.

This United Airlines deal was found by Cheapflights users on 1/8. 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.
Mon 8/106:00 amIAD - ACK
1 stop3h 56mUnited Airlines
Fri 8/144:15 pmACK - IAD
1 stop6h 45mUnited Airlines
Deal found 1/8$376
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Mon 8/176:00 amIAD - ACK
1 stop3h 56mUnited Airlines
Wed 8/194:15 pmACK - IAD
1 stop6h 45mUnited Airlines
Deal found 1/6$438
This Delta deal was found by Cheapflights users on 1/8. 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.
Mon 8/310:40 amIAD - ACK
2 stops7h 25mDelta
Fri 8/72:10 pmACK - IAD
1 stop5h 06mDelta
Deal found 1/8$534
This American Airlines deal was found by Cheapflights users on 1/8. 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 7/235:45 pmIAD - ACK
2 stops16h 09mAmerican Airlines
Tue 7/2810:24 amACK - IAD
2 stops11h 34mAmerican Airlines
Deal found 1/8$604
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Sat 8/810:07 pmIAD - ACK
1 stop16h 22mUnited Airlines
Sat 8/154:15 pmACK - IAD
1 stop6h 45mUnited Airlines
Deal found 1/6$636
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Sat 7/46:00 amIAD - ACK
1 stop3h 56mUnited Airlines
Sat 7/114:15 pmACK - IAD
1 stop6h 45mUnited Airlines
Deal found 1/6$649
This Delta deal was found by Cheapflights users on 1/7. 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.
Wed 5/2710:40 amIAD - ACK
2 stops7h 25mDelta
Sun 5/312:10 pmACK - IAD
1 stop5h 06mDelta
Deal found 1/7$654
This United Airlines deal was found by Cheapflights users on 1/7. 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 5/276:00 amIAD - ACK
1 stop3h 56mUnited Airlines
Sun 5/314:15 pmACK - IAD
1 stop6h 45mUnited Airlines
Deal found 1/7$678

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 January 8, 2026.
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 7/4

6:00 am-9:56 am

1 stop3h 56m

Nantucket Memorial

Sat 7/11

4:15 pm-11:00 pm

1 stop6h 45m

$649

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 5/27

6:00 am-9:56 am

1 stop3h 56m

Nantucket Memorial

Sun 5/31

4:15 pm-11:00 pm

1 stop6h 45m

$678

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 5/29

6:00 am-9:56 am

1 stop3h 56m

Nantucket Memorial

Sun 5/31

4:15 pm-11:00 pm

1 stop6h 45m

$784

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 5/22

6:00 am-9:56 am

1 stop3h 56m

Nantucket Memorial

Mon 5/25

4:15 pm-11:00 pm

1 stop6h 45m

$948

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 5/29

10:40 am-6:05 pm

2 stops7h 25m

Nantucket Memorial

Sun 5/31

2:10 pm-7:16 pm

1 stop5h 06m

$954

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 5/27

10:40 am-6:05 pm

2 stops7h 25m

Nantucket Memorial

Sun 5/31

1:45 pm-10:59 pm

2 stops9h 14m

$990

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 6/26

5:45 pm-9:54 am

2 stops16h 09m

Nantucket Memorial

Sun 6/28

10:24 am-9:58 pm

3 stops11h 34m

$999

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sun 6/21

5:45 pm-1:49 pm

2 stops20h 04m

Nantucket Memorial

Fri 6/26

5:42 pm-8:46 am

3 stops15h 04m

$1,000

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sun 6/21

10:40 am-6:05 pm

2 stops7h 25m

Nantucket Memorial

Fri 6/26

2:10 pm-7:16 pm

1 stop5h 06m

$1,034

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sun 6/7

6:00 am-9:56 am

1 stop3h 56m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 11 results
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  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Nantucket flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Nantucket flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Nantucket flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Nantucket flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Nantucket flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Nantucket

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Nantucket?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Nantucket (average of $117). Flying from Washington, D.C. Dulles Intl Airport to Nantucket in July is currently the most expensive (average of $167). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Nantucket?

    Airlines like United Airlines and Delta fly from Washington, D.C. Dulles Intl Airport to Nantucket in about 3h 56m. The time it takes to get you to your destination can typically vary by up to 3h 29m. There are 421 mi between Washington, D.C. Dulles Intl Airport and Nantucket. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Nantucket?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Nantucket (average of $117). Flying from Washington, D.C. Dulles Intl Airport to Nantucket in July is currently the most expensive (average of $167). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Dulles Intl to Nantucket

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