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Nantucket

$129+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Apr 26 — May 31
Sun 4/26
Sun 5/3
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 March 27, 2026.

This American Airlines deal was found by Cheapflights users on 3/24. 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.
Wed 7/86:33 am
IAD
-
ACK
2 stops7h 20m
American Airlines
Fri 7/241:53 pm
ACK
-
IAD
1 stop5h 47m
American Airlines
Deal found 3/24$403
This American Airlines deal was found by Cheapflights users on 3/25. 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 6/278:22 pm
IAD
-
ACK
2 stops18h 41m
American Airlines
Fri 7/171:53 pm
ACK
-
IAD
1 stop5h 47m
American Airlines
Deal found 3/25$421
This United Airlines deal was found by Cheapflights users on 3/23. 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 7/136:33 am
IAD
-
ACK
1 stop3h 42m
United Airlines
Wed 7/153:44 pm
ACK
-
IAD
1 stop5h 16m
United Airlines
Deal found 3/23$467
This Delta deal was found by Cheapflights users on 3/25. 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 6/36:00 am
IAD
-
ACK
2 stops8h 19m
Delta
Mon 6/83:20 pm
ACK
-
IAD
1 stop20h 28m
Delta
Deal found 3/25$486
This United Airlines deal was found by Cheapflights users on 3/26. 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 7/148:29 am
IAD
-
ACK
1 stop6h 35m
United Airlines
Wed 7/153:44 pm
ACK
-
IAD
1 stop5h 16m
United Airlines
Deal found 3/26$497
This American Airlines deal was found by Cheapflights users on 3/26. 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.
Fri 7/178:22 pm
IAD
-
ACK
2 stops13h 30m
American Airlines
Fri 7/311:53 pm
ACK
-
IAD
1 stop5h 47m
American Airlines
Deal found 3/26$510
This American Airlines deal was found by Cheapflights users on 3/25. 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 6/206:20 am
IAD
-
ACK
2 stops7h 42m
American Airlines
Sat 6/272:32 pm
ACK
-
IAD
2 stops9h 41m
American Airlines
Deal found 3/25$511

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 March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$403
(American Airlines)

One-way from

$129
(Delta)

Popular in

October

Cheapest in

December

Average price

$239
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.
Search Deals
From Washington, D.C. Dulles Intl to Nantucket Memorial
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Nantucket Memorial
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 27, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 7/14

8:29 am-3:04 pm

1 stop6h 35m

Nantucket Memorial

Wed 7/15

3:44 pm-9:00 pm

1 stop5h 16m

$497
Quickest round-trip

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Mon 7/6

6:33 am-10:15 am

1 stop3h 42m

Nantucket Memorial

Fri 7/10

10:53 am-4:32 pm

1 stop5h 39m

$687

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Sat 6/20

10:15 pm-2:29 pm

2 stops16h 14m

Nantucket Memorial

Wed 6/24

3:44 pm-9:00 pm

1 stop5h 16m

$743
Cheapest one-way
Quickest one-way

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Wed 8/19

8:29 am-2:47 pm

1 stop6h 18m

$239

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 7/2

8:29 am-3:04 pm

1 stop6h 35m

$342

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 6/4

8:29 am-2:56 pm

1 stop6h 27m

$344

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Fri 6/19

10:17 pm-2:56 pm

2 stops16h 39m

$443

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 5/21

8:29 am-2:56 pm

1 stop6h 27m

$484

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Thu 9/10

10:31 pm-2:47 pm

2 stops16h 16m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Sorted by cheapest first
  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Nantucket (average of $137). Flying from Washington, D.C. Dulles Intl Airport to Nantucket in February 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 fly from Washington, D.C. Dulles Intl Airport to Nantucket in about 6h 35m. The time it takes to get you to your destination can typically vary by up to . There are 421 mi between Washington, D.C. Dulles Intl Airport and Nantucket.

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Nantucket (average of $137). Flying from Washington, D.C. Dulles Intl Airport to Nantucket in February 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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