Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from London to Boston
The cheapest flights right now
London – Boston
Outbound – Nov 26, 2026
direct
7h 55m Return – Dec 6, 2026
direct
6h 40m $629
today
London – Boston
Outbound – Oct 30, 2026
direct
7h 49m Return – Nov 9, 2026
direct
6h 35m $626
today
London – Boston
Outbound – Nov 2, 2026
direct
7h 55m Return – Nov 17, 2026
direct
6h 44m $623
today
London – Boston
Outbound – Nov 26, 2026
direct
7h 55m Return – Dec 5, 2026
direct
6h 44m $622
yesterday
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$431
Average price of a round trip
$614
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
7h36
A flight from London to Boston takes on average 7h36.
Best time
September
According to user searches, the ideal month to go to Boston is September.
Tips for finding a cheap flight from London to Boston
Check out our tips for booking your flight to Boston (USA) from London (United Kingdom) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is February, with an average flight ticket price of $338 (calculation over the last two years). The most touristic season corresponds to the months of October, September and November.
For the cheapest flights, it is advisable to buy your ticket at least 12 days before the departure date.
The airline offering the cheapest flight tickets is Ryanair. A ticket from the airline Ryanair to Boston costs on average $717.
The airlines that offer the most flights are Air France, JetBlue and British Airways.
info departure city :
London, United Kingdom
airports :
London City Airport (LCY)
London Gatwick Airport (LGW)
London Heathrow Airport (LHR)
London Luton Airport (LTN)
London-Stansted Airport (STN)
local time :
London is a city in the country United Kingdom, the time zone is [[timezone]]. In London, it is currently {fromLocalTime}, the temperature is on average 14°C, with a minimum of 11°C and a maximum of 16°C.
The city of London (LON) has 5 airport(s): London City, London Gatwick, London Heathrow, London Luton and London-Stansted
destination info :
Boston, USA
airport :
Boston-Logan International Airport (BOS)
local time :
Boston is in the country USA, the time zone is [[timezone]]. In Boston, it is currently {toLocalTime}, the temperature is on average 14°C, with a minimum of 10°C and a maximum of 17°C.
The city of Boston has 1 airport(s): Boston-Logan
Useful info about Boston
What is the least touristic period to go to Boston?
If you want to visit Boston during the least touristic period, choose the month of September.
What is the most popular time to travel to Boston?
In Boston, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from London to Boston?
According to our data, it is recommended to book your flight 12 days before your departure. If you book your flight ticket 2 weeks before your departure, you may find a price below average. You can also choose morning flights that are 11% cheaper than afternoon and evening flights. The cheapest day to book a flight from London to Boston is Friday.
What are the arrival and destination airports when traveling between London and Boston?
When you leave, you can leave from London City, London Gatwick, London Heathrow, London Luton or London-Stansted, and you will arrive at Boston-Logan.
How to reach London airport from the city centre?
The airport London City is located 16 km, London Gatwick is located 38 km, London Heathrow is located 35 km, London Luton is located 45 km or London-Stansted is located 49 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from London to Boston?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between London and Boston?
In summer, the average temperature is 22°C in Boston and 18°C in London. The average rainfall in summer is 106 mm in Boston and 63 mm in London. In summer, it is warmer in Boston and it rains less in London. In winter, it is colder in London and it rains more in Boston.
