$320 Cheap United flights from Washington to Nantucket (IAD to ACK)

Find The Best Day To Fly from Washington to Nantucket

Amazing United IAD to ACK Flight Deals

The cheapest flights to Nantucket Memorial found within the past 7 days were $582 round trip and $320 one way. Prices and availability subject to change. Additional terms may apply.

ACK From IAD Economy Coach Packages on Similar Airlines

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Discover our best United flight from Washington IAD to Nantucket ACK 

To find the best deals on flights to Washington from Nantucket with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Washington IAD to Nantucket ACK with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $582 to $1,429, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Washington IAD to Nantucket ACK 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Washington to Nantucket costs from $320. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Nantucket ACK from  Washington IAD with United 

To find a cheap United flight from Washington IAD to Nantucket ACK, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Washington IAD to Nantucket ACK 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as August, or if you book a flight with a stopover. 

 

Find nonstop flights from Washington IAD to Nantucket ACK with United 

If you’re keen to be on Nantucket soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Washington IAD to Nantucket ACK 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Nantucket ACK from  Washington IAD with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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Nantucket Inn

Nantucket Inn

3.5 out of 5
1 Miller Lane, Nantucket, MA
2 outdoor tennis courts, 2 hot tubs, and an indoor pool are all featured at this smoke-free resort. Traveling on business? Take advantage of the business center, ...
9/10 Wonderful! (546 reviews)
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Reviewed on Aug 21, 2025

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This condo features a garden, laundry facilities, and barbecue grills.
Wonderful property in the heart of the island
"Great, new build home that is spacious and comfortable. Located close to the airport and two bus routes, it is surprisingly accessible even without a vehicle. The beds are the most comfortable we have had on the island, greatly appreciated. Beach supplies such as chairs, umbrellas, and towels were ..."

Reviewed on Aug 11, 2025

Charming Nantucket Escape - Spacious Home w/ Private Yard, Deck & Bonus Loft
Whaler's Inn

Whaler's Inn

3 out of 5
18B Park Cir, Nantucket, MA
A seasonal outdoor pool is featured at this guesthouse, along with free self parking. WiFi in public areas is free. Express check-out is also provided.
10/10 Exceptional! (31 reviews)
"I would go again."

Reviewed on Aug 17, 2025

Whaler's Inn
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.