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Nantucket

$335+ 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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap 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 February 5, 2026.

This United Airlines deal was found by Cheapflights users on 2/2. 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 7/148:15 am
IAD
-
ACK
1 stop6h 36m
United Airlines
Sat 7/183:49 pm
ACK
-
IAD
1 stop4h 44m
United Airlines
Deal found 2/2$487
This United Airlines deal was found by Cheapflights users on 2/1. 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 8/1710:24 pm
IAD
-
ACK
2 stops16h 23m
United Airlines
Wed 8/193:49 pm
ACK
-
IAD
1 stop4h 44m
United Airlines
Deal found 2/1$545
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 7/115:00 am
IAD
-
ACK
1 stop7h 19m
American Airlines
Sat 7/1812:50 pm
ACK
-
IAD
1 stop4h 24m
American Airlines
Deal found 2/2$618

Find 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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$487
(United Airlines)

One-way from

$335
(American Airlines)

Popular in

October

Cheapest in

February

Average price

$187
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. 8% potential increase in price ($20 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 February 2026
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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 February 5, 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

Tue 7/14

8:15 am-2:51 pm

1 stop6h 36m

Nantucket Memorial

Sat 7/18

3:49 pm-8:33 pm

1 stop4h 44m

$487

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 7/11

5:00 am-12:19 pm

1 stop7h 19m

Nantucket Memorial

Sat 7/18

12:50 pm-5:14 pm

1 stop4h 24m

$618

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 6/11

8:15 am-2:51 pm

1 stop6h 36m

Nantucket Memorial

Mon 6/15

3:49 pm-8:33 pm

1 stop4h 44m

$686

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 8/1

6:40 am-12:19 pm

1 stop5h 39m

Nantucket Memorial

Mon 8/3

2:19 pm-9:58 pm

2 stops7h 39m

$719

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 7/17

5:45 pm-12:19 pm

1 stop18h 34m

Nantucket Memorial

Fri 7/31

2:19 pm-11:58 pm

2 stops9h 39m

$793

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 6/12

5:45 pm-1:49 pm

2 stops20h 04m

Nantucket Memorial

Tue 6/16

2:19 pm-5:14 pm

2 stops26h 55m

$802

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 7/11

6:00 am-4:03 pm

2 stops10h 03m

Nantucket Memorial

Sat 7/18

2:10 pm-7:16 pm

1 stop5h 06m

$833

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 7/14

6:00 am-4:03 pm

2 stops10h 03m

Nantucket Memorial

Sat 7/18

2:10 pm-10:59 pm

2 stops8h 49m

$869

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sun 6/14

6:40 am-1:49 pm

2 stops7h 09m

$335

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sun 6/14

8:15 am-2:51 pm

1 stop6h 36m

$396

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 11 results
1
2
  • 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 $121). 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 American Airlines fly from Washington, D.C. Dulles Intl Airport to Nantucket in about 6h 36m. The time it takes to get you to your destination can typically vary by up to 43m. 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 $121). 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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