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$368+ 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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ACK
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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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 November 10, 2025.

This United deal was found by Cheapflights users on 11/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:00 amIAD - ACK
1 stop6h 50mMultiple Airlines
Fri 1/27:00 amACK - IAD
1 stop14h 30mMultiple Airlines
Deal found 11/8$916
This United deal was found by Cheapflights users on 11/10. 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.
Mon 11/1710:07 pmIAD - ACK
2 stops18h 52mMultiple Airlines
Thu 11/205:25 pmACK - IAD
1 stop13h 48mMultiple Airlines
Deal found 11/10$956
This United deal was found by Cheapflights users on 11/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:00 amIAD - ACK
1 stop4h 50mMultiple Airlines
Mon 12/295:30 pmACK - IAD
2 stops5h 36mMultiple Airlines
Deal found 11/8$974
This United deal was found by Cheapflights users on 11/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:51 pmIAD - ACK
2 stops17h 38mMultiple Airlines
Sat 11/153:20 pmACK - IAD
1 stop15h 53mMultiple Airlines
Deal found 11/8$1,021
This United deal was found by Cheapflights users on 11/9. 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.
Wed 11/199:00 amIAD - ACK
1 stop6h 44mMultiple Airlines
Wed 11/266:49 amACK - IAD
1 stop4h 24mMultiple Airlines
Deal found 11/9$1,189
This United deal was found by Cheapflights users on 11/9. 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.
Wed 12/39:00 amIAD - ACK
1 stop6h 55mMultiple Airlines
Sun 12/74:54 pmACK - IAD
1 stop4h 00mMultiple Airlines
Deal found 11/9$1,316

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 November 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$916
(United)

One-way from

$368
(United)

Popular in

October

Cheapest in

January

Average price

$230
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 ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 10, 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

Wed 12/31

9:00 am-3:50 pm

1 stop6h 50m

Nantucket Memorial

Fri 1/2

7:00 am-9:30 pm

1 stop14h 30m

$916

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Mon 12/29

9:00 am-1:50 pm

1 stop4h 50m

Nantucket Memorial

Mon 12/29

4:04 pm-9:30 pm

1 stop5h 26m

$1,079

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Mon 12/22

10:17 pm-1:10 pm

2 stops14h 53m

$368

Washington, D.C.Nantucket

IAD - ACK

IADACK

Washington, D.C. Dulles Intl

Tue 11/25

10:07 pm-12:25 pm

1 stop14h 18m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

  • 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.

  • 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.

See more FAQs

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Alternative routes for Dulles Intl to Nantucket

See prices for flight routes from nearby airports that may be better suited for you.
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