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Cheap flights from London Heathrow Airport to Nantucket from £743

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ACK
20 Mar — 27 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Nantucket

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Nantucket
Explore the most affordable flight options available from Heathrow to Nantucket. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 February 2026.

Fri 11/908:00
LHR
-
ACK
1 stop35h 25m
United Airlines
Tue 15/915:49
ACK
-
LHR
1 stop10h 26m
United Airlines
Deal found 13/2£743
Fri 11/908:40
LHR
-
ACK
1 stop17h 00m
JetBlue
Tue 15/916:10
ACK
-
LHR
1 stop12h 20m
JetBlue
Deal found 16/2£771
Thu 25/620:10
LHR
-
ACK
1 stop18h 39m
Multiple Airlines
Wed 1/715:34
ACK
-
LHR
1 stop10h 16m
Multiple Airlines
Deal found 17/2£781
Thu 25/616:20
LHR
-
ACK
1 stop26h 07m
Delta
Wed 1/714:10
ACK
-
LHR
1 stop11h 10m
Delta
Deal found 14/2£790
Sat 1/811:20
LHR
-
ACK
3 stops28h 05m
Multiple Airlines
Sat 8/818:05
ACK
-
LHR
2 stops18h 40m
Multiple Airlines
Deal found 17/2£793
Thu 25/620:10
LHR
-
ACK
2 stops19h 31m
American Airlines
Wed 1/712:51
ACK
-
LHR
1 stop13h 59m
American Airlines
Deal found 15/2£808

Find flight deals from Heathrow to Nantucket

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 18 February 2026.

Round-trip from

£781

Popular in

July

Cheapest in

September

Average price

£398
25/6-1/7
  • 25/6-1/7
  • 2 total stops
  • 28h 55m total
  • London to Nantucket
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 858,174 searches. Data last updated 18 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Nantucket that are best for you.

Fly from

Heathrow

Fly to

Nantucket

Route

Depart

Return

Price

LondonNantucket

LHR - ACK

LHRACK

London Heathrow

Thu 25/6

20:10-09:49

1 stop18h 39m

Nantucket Memorial

Wed 1/7

15:34-06:50

1 stop10h 16m

£781

LondonNantucket

LHR - ACK

LHRACK

London Heathrow

Thu 25/6

16:20-13:27

1 stop26h 07m

Nantucket Memorial

Wed 1/7

14:10-06:20

1 stop11h 10m

£790

LondonNantucket

LHR - ACK

LHRACK

London Heathrow

Sat 1/8

11:20-10:25

3 stops28h 05m

Nantucket Memorial

Sat 8/8

18:05-17:45

2 stops18h 40m

£793

LondonNantucket

LHR - ACK

LHRACK

London Heathrow

Thu 25/6

20:10-10:41

2 stops19h 31m

Nantucket Memorial

Wed 1/7

12:51-07:50

1 stop13h 59m

£808

LondonNantucket

LHR - ACK

LHRACK

London Heathrow

Sat 1/8

08:15-15:23

1 stop12h 08m

Nantucket Memorial

Sat 8/8

15:43-06:30

1 stop9h 47m

£1,041

LondonNantucket

LHR - ACK

LHRACK

London Heathrow

Thu 25/6

16:40-14:51

2 stops27h 11m

Nantucket Memorial

Wed 1/7

15:49-10:40

2 stops13h 51m

£1,087

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Best time to book a flight from Heathrow to Nantucket

Have a flexible travel schedule? Discover the best time to fly to Nantucket from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to Nantucket

What is the cheapest month to book a flight from London Heathrow Airport to Nantucket?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Nantucket (average of £301). Flying from London Heathrow Airport to Nantucket in July is currently the most expensive (average of £369). 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 Heathrow 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 London Heathrow?

    Nantucket Memorial (ACK) is the airport you will fly into if you book a flight from London Heathrow to Nantucket. You should not have trouble finding flights to Memorial from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Nantucket airport from London Heathrow. It is only a 2.8 mi journey from Memorial (ACK) to Nantucket’s city center.

  • How long is the flight from London Heathrow Airport to Nantucket?

    A quick flight from London Heathrow Airport to Nantucket can take about 26h 07m. Delta provides one of the quickest options available for as low as £790. London Heathrow Airport and Nantucket are separated by a distance of 3261 mi.

  • Can I find deals for flights from Heathrow to Nantucket that include hotel bookings?

    Yes. In addition to deals on Heathrow to Nantucket flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Nantucket?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Nantucket.

  • Can I find deals for business class flights from Heathrow to Nantucket?

    Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Nantucket?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Nantucket (average of £301). Flying from London Heathrow Airport to Nantucket in July is currently the most expensive (average of £369). 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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Cheapflights makes it easy to find Heathrow to Nantucket flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Nantucket?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Nantucket.

Can Cheapflights find flights from Heathrow to Nantucket with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Nantucket flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Nantucket become cheaper?

Of course! You can now track prices for flights from Heathrow to Nantucket and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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