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Cheap Flights from London Heathrow to Boston

Compare London Heathrow to Boston flight deals

Find the cheapest month or even day of the year to fly to Boston

Book the best Boston fare with no extra fees

Flight deals from London Heathrow Airport to Boston

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Boston? If you want to travel next month, return fares start from £377. Find the lowest prices on one-way and return tickets right here.
Boston.£205 per passenger.Departing Thu, 9 Apr.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Thu, 9 Apr, arriving in Boston Logan International.Price includes taxes and charges.From £205, select.
Boston.£252 per passenger.Departing Tue, 19 May.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Tue, 19 May, arriving in Boston Logan International.Price includes taxes and charges.From £252, select.
Boston.£259 per passenger.Departing Mon, 14 Sep.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 14 Sep, arriving in Boston Logan International.Price includes taxes and charges.From £259, select.
Boston.£271 per passenger.Departing Tue, 17 Nov.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Tue, 17 Nov, arriving in Boston Logan International.Price includes taxes and charges.From £271, select.
Boston.£272 per passenger.Departing Mon, 18 Jan.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 18 Jan, arriving in Boston Logan International.Price includes taxes and charges.From £272, select.
Boston.£274 per passenger.Departing Tue, 1 Dec.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Tue, 1 Dec, arriving in Boston Logan International.Price includes taxes and charges.From £274, select.
Boston.£276 per passenger.Departing Mon, 1 Feb.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 1 Feb, arriving in Boston Logan International.Price includes taxes and charges.From £276, select.
Boston.£277 per passenger.Departing Mon, 31 Aug.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 31 Aug, arriving in Boston Logan International.Price includes taxes and charges.From £277, select.
Boston.£279 per passenger.Departing Tue, 9 Jun.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Tue, 9 Jun, arriving in Boston Logan International.Price includes taxes and charges.From £279, select.
Boston.£289 per passenger.Departing Tue, 6 Oct.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from London Heathrow on Tue, 6 Oct, arriving in Boston Logan International.Price includes taxes and charges.From £289, select.
Boston.£311 per passenger.Departing Tue, 1 Sep.One-way flight with Finnair.Outbound direct flight with Finnair departs from London Heathrow on Tue, 1 Sep, arriving in Boston Logan International.Price includes taxes and charges.From £311, select.
Boston.£312 per passenger.Departing Wed, 18 Nov.One-way flight with Finnair.Outbound direct flight with Finnair departs from London Heathrow on Wed, 18 Nov, arriving in Boston Logan International.Price includes taxes and charges.From £312, select.
Boston.£313 per passenger.Departing Mon, 11 Jan.One-way flight with Finnair.Outbound direct flight with Finnair departs from London Heathrow on Mon, 11 Jan, arriving in Boston Logan International.Price includes taxes and charges.From £313, select.
Boston.£313 per passenger.Departing Tue, 6 Oct.One-way flight with Finnair.Outbound direct flight with Finnair departs from London Heathrow on Tue, 6 Oct, arriving in Boston Logan International.Price includes taxes and charges.From £313, select.
Boston.£313 per passenger.Departing Tue, 12 May.One-way flight with Finnair.Outbound direct flight with Finnair departs from London Heathrow on Tue, 12 May, arriving in Boston Logan International.Price includes taxes and charges.From £313, select.
Boston.£315 per passenger.Departing Mon, 7 Dec.One-way flight with Finnair.Outbound direct flight with Finnair departs from London Heathrow on Mon, 7 Dec, arriving in Boston Logan International.Price includes taxes and charges.From £315, select.

Find the cheapest month to fly from London Heathrow to Boston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Boston flights are currently cheapest in April.
Mar
from £324
Apr
from £204
May
from £251
Jun
from £278
Jul
from £322
Aug
from £277
Sep
from £258
Oct
from £289
Nov
from £270
Dec
from £273
Jan
from £271
Feb
from £275

Direct flights from London Heathrow to Boston

Alternative London Heathrow to Boston routes

Looking for the cheapest, fastest or easiest route from London Heathrow to Boston? You could fly into the following airports instead.

Boston Logan International

5km from central Boston
ClosestCheapest
from £204
Search flights

Worcester

68km from central Boston
from £393
Search flights

Manchester

72km from central Boston
from £423
Search flights

Provincetown

76km from central Boston
from £519
Search flights

Fall River

76km from central Boston
Search flights

Providence

76km from central Boston
from £337
Search flights

Portsmouth

82km from central Boston
from £440
Search flights

London to Boston: Flight information

The things to know before you go.
Cheapest flight found£205
Cheapest month to flyApril
Average flight time7 hrs, 41 mins
Most popular airlineFinnair
Average flights per week366

Finding cheap flights from London Heathrow to Boston: Frequently asked questions

There are 7 airports in Boston: Boston Logan International, Worcester, Manchester, Provincetown, Fall River, Providence, and Portsmouth.
The best price we found for a return flight from London Heathrow to Boston is £351. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
7 hours and 41 minutes is the average flight time from London Heathrow to Boston.
Finnair, Iberia and American Airlines fly direct from London Heathrow to Boston.
As of March 2026, there are 366 flights per week flying from London Heathrow to Boston.
The cheapest month to fly from London Heathrow to Boston is usually March.
If you're flying from London Heathrow Airport, the cheapest airport near Boston is Boston Logan International – which is 4.5 km away from the centre of Boston. We've found flights into this airport from £351.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Boston on Tuesday, 17 March 2026.
Yes – the average flight time is 7 hours and 41 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Boston is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 2°C. July is typically the warmest month in Boston, when it usually averages around 26°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -6°C. The rainiest month is March.
Currently, Icelandair and Virgin Atlantic offer the cheapest flight tickets to Boston.

How to find cheap flights to Boston from London Heathrow

Looking for cheap tickets from London Heathrow to Boston? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from London Heathrow to Boston. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Boston from London Heathrow from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best London Heathrow-Boston ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Boston from London Heathrow.
  • Set up a Price Alert. You can easily track the fare of your cheap London Heathrow-Boston flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between London Heathrow and Boston? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from London Heathrow and Boston. We scour the internet for the best Business, Premium Economy and First Class flight fares to Boston, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for London Heathrow to Boston flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

    • Combine your flight to Boston from London Heathrow with hotels and car hire

    Once you've secured your cheap flight ticket from London Heathrow to Boston, discover the best prices and exclusive rates for hotels in Boston or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


Plan the rest of your trip from London to Boston

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.