$678 Cheap Flights from London (LHR) to Nantucket (ACK)

View $678 flight on Thu, Jan 8, 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Nantucket, MA (ACK-Nantucket Memorial)

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Cheap Flights from London to Nantucket (LHR-ACK)

Prices were available within the past 7 days and start at $678 for one-way flights and $959 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$959 Roundtrip, found 4 days ago
$959
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $959 found 4 days ago
JetBlue Airways
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$998 Roundtrip, found 4 days ago
$998
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $998 found 4 days ago
JetBlue Airways
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,032 Roundtrip, found 4 days ago
$1,032
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,032 found 4 days ago
JetBlue Airways
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,088 Roundtrip, found 4 days ago
$1,088
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,088 found 4 days ago
LOT-Polish Airlines
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,343 Roundtrip, found 4 days ago
$1,343
Roundtrip
found 4 days ago
Select LOT-Polish Airlines flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,343 found 4 days ago
Icelandair
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,359 Roundtrip, found 4 days ago
$1,359
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,359 found 4 days ago
Air Serbia
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,424 Roundtrip, found 4 days ago
$1,424
Roundtrip
found 4 days ago
Select Air Serbia flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,424 found 4 days ago
Aer Lingus
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,436 Roundtrip, found 4 days ago
$1,436
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,436 found 4 days ago
Aer Lingus
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,449 Roundtrip, found 4 days ago
$1,449
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,449 found 4 days ago
Aer Lingus
Thu, Jul 23 - Sun, Jul 26
LHR
London
ACK
Nantucket
$1,461 Roundtrip, found 4 days ago
$1,461
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Thu, Jul 23 from London to Nantucket, returning Sun, Jul 26, priced at $1,461 found 4 days ago

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK) cost?
Get a cheap one-way flight from $678 or cheap return flight from $959 from Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK)?
The cheapest month to fly from LHR to ACK is July, when there's less demand. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest LHR to ACK flight.
How many flights per day from Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK)?
Nonstop flights from Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from LHR to ACK?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary depending 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 Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK)?
To avoid potential delays on the Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK) route, fly before 3 PM. Flights after this time are 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 Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK) last-minute?
Last-minute fares from LHR to ACK are usually more expensive. To lock in the cheapest rates, start searching for flights early. That said, if your travel plans are flexible, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book a LHR to ACK flight and hotel package?
You'll generally save money by securing a LHR to ACK flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Nantucket Memorial Airport (ACK)?
Generally, it's possible to cancel or reschedule your LHR to ACK flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Heathrow
Destination airport
Nantucket Memorial
Roundtrip price
$958
Distance
3263 mi

Book with confidence

London to Nantucket Flights

The cheapest times to fly from London 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 London to Nantucket are during the month of July. You can find some of the cheapest flights from London to Nantucket with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Nantucket

Sunday is one of the best days to book for cheap flights from London 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 London 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 London to Nantucket in 2025. You can also book with separate airlines for your outbound and return journeys, from $678 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 London 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 London 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.

 

London to Nantucket Flights

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*Available to One Key members.