$202 Cheap Flights from Washington (IAD) to Nantucket (ACK)

View $202 flight on Tue, Jun 2, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Nantucket, MA (ACK-Nantucket Memorial)

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Cheap Flights from Washington to Nantucket (IAD-ACK)

Prices were available within the past 7 days and start at $202 for one-way flights and $315 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, May 25 - Sat, Jun 6
IAD
Washington
ACK
Nantucket
$315 Roundtrip, found 1 day ago
$315
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, May 25 from Washington to Nantucket, returning Sat, Jun 6, priced at $315 found 1 day ago
Delta
Thu, May 28 - Tue, Jun 16
IAD
Washington
ACK
Nantucket
$340 Roundtrip, found 1 day ago
$340
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, May 28 from Washington to Nantucket, returning Tue, Jun 16, priced at $340 found 1 day ago
Delta
Fri, May 22 - Sat, Jun 6
IAD
Washington
ACK
Nantucket
$375 Roundtrip, found 1 day ago
$375
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, May 22 from Washington to Nantucket, returning Sat, Jun 6, priced at $375 found 1 day ago
Delta
Thu, May 28 - Sat, Jun 13
IAD
Washington
ACK
Nantucket
$411 Roundtrip, found 1 day ago
$411
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, May 28 from Washington to Nantucket, returning Sat, Jun 13, priced at $411 found 1 day ago
United
Thu, May 21 - Fri, Jun 12
IAD
Washington
ACK
Nantucket
$588 Roundtrip, found 1 day ago
$588
Roundtrip
found 1 day ago
Select United flight, departing Thu, May 21 from Washington to Nantucket, returning Fri, Jun 12, priced at $588 found 1 day ago
United
Sun, Jul 12 - Thu, Jul 16
IAD
Washington
ACK
Nantucket
$678 Roundtrip, found 6 days ago
$678
Roundtrip
found 6 days ago
Select United flight, departing Sun, Jul 12 from Washington to Nantucket, returning Thu, Jul 16, priced at $678 found 6 days ago
United
Fri, Aug 7 - Fri, Aug 28
IAD
Washington
ACK
Nantucket
$772 Roundtrip, found 1 day ago
$772
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 7 from Washington to Nantucket, returning Fri, Aug 28, priced at $772 found 1 day ago
American Airlines
Sat, Oct 25 - Sat, Nov 1
IAD
Washington
ACK
Nantucket
$842 Roundtrip, found 5 days ago
$842
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Oct 25 from Washington to Nantucket, returning Sat, Nov 1, priced at $842 found 5 days ago
American Airlines
Sat, Oct 25 - Sat, Nov 1
IAD
Washington
ACK
Nantucket
$859 Roundtrip, found 5 days ago
$859
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Oct 25 from Washington to Nantucket, returning Sat, Nov 1, priced at $859 found 5 days ago
United
Mon, Jun 29 - Mon, Jul 6
IAD
Washington
ACK
Nantucket
$878 Roundtrip, found 4 hours ago
$878
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Jun 29 from Washington to Nantucket, returning Mon, Jul 6, priced at $878 found 4 hours ago

Alternative airports near Nantucket

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Martha's Vineyard MVY. Flights from $802
MVY
Martha's Vineyard
Flights from $802
Select flight to Barnstable Municipal HYA. Cheapest option available. Flights from $727
HYA
Barnstable Municipal
Cheapest
Flights from $727

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK) cost?
Lock in a cheap one-way flight from $202 or cheap return flight from $315 from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK)?
Flying in May can help you save, as it's the cheapest month for flights between IAD and ACK. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest IAD to ACK flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK)?
There aren't any daily nonstop flights from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from IAD to ACK?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK)?
Opt for a flight from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK) last-minute?
Holding off until just before your trip to book your flight from IAD to ACK generally means paying more. While you may find some last-minute offers, they're not always guaranteed. Keep your travel schedule open for a better chance of getting a bargain.
Is it cheaper to book an IAD to ACK flight and hotel package?
You can save money by securing an IAD to ACK flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your preferred flights and accommodations, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Nantucket Memorial Airport (ACK)?
In most instances, you can modify or cancel your IAD to ACK flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you need further details, visit our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Nantucket Memorial
Airlines serving
Delta, United
Roundtrip price
$314
Distance
421 mi

Book with confidence

Washington to Nantucket Flights

The cheapest times to fly from Washington to Nantucket

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Nantucket are during the month of May. You can find some of the cheapest flights from Washington to Nantucket with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Nantucket

Sunday is one of the best days to book for cheap flights from Washington to Nantucket: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Nantucket

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Nantucket in 2025. You can also book with separate airlines for your outbound and return journeys, from $202 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Nantucket flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Nantucket airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Nantucket Flights

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*Available to One Key members.