LON - BOS

€241 Find Cheap Flights from London to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Boston departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Boston, as well as popular online travel agencies
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Cheap Flight Deals from London to Boston (LON-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from London to Boston

KAYAK's recommended return flight deals from the most popular airlines that fly from London to Boston.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
11:40 - 17:50STN-BOS
11h 10m1 stop
19:15 - 10:40BOS-STN
10h 25m1 stop
€365PLAY
Find Deal
Tue, 6 May - Tue, 13 May
06:15 - 17:50LTN-BOS
16h 35m1 stop
19:15 - 13:00BOS-LTN
12h 45m1 stop
€365
Find Deal
Wed, 30 Apr - Tue, 6 May
10:50 - 17:40LHR-BOS
11h 50m1 stop
20:05 - 12:50BOS-LHR
11h 45m1 stop
€377Lufthansa
Find Deal
Thu, 1 May - Sat, 17 May
10:50 - 17:40LHR-BOS
11h 50m1 stop
22:00 - 14:40BOS-LHR
11h 40m1 stop
€379Lufthansa
Find Deal
Sat, 6 Sep - Sat, 20 Sep
09:05 - 13:50LHR-BOS
33h 45m1 stop
17:10 - 18:40BOS-LHR
20h 30m1 stop
€382Austrian Airlines
Find Deal
Thu, 15 May - Tue, 20 May
13:45 - 19:55LHR-BOS
11h 10m1 stop
21:40 - 13:00BOS-LHR
10h 20m1 stop
€387SWISS
Find Deal
Thu, 24 Apr - Thu, 8 May
19:30 - 13:50LHR-BOS
23h 20m1 stop
17:10 - 08:20BOS-LHR
34h 10m1 stop
€392Austrian Airlines
Find Deal
Tue, 29 Apr - Tue, 20 May
06:00 - 15:25LHR-BOS
14h 25m1 stop
17:05 - 13:40BOS-LHR
15h 35m2 stops
€401SWISS
Find Deal
Fri, 5 Sep - Sun, 21 Sep
08:40 - 15:25LHR-BOS
11h 45m1 stop
11:02 - 06:20BOS-LHR
14h 18m1 stop
€422United Airlines
Find Deal
Thu, 15 May - Thu, 22 May
07:30 - 20:10LHR-BOS
17h 40m1 stop
09:50 - 10:40BOS-LHR
19h 50m1 stop
€427United Airlines
Find Deal
Sun, 7 Sep - Sat, 20 Sep

KAYAK's insights & trends for London to Boston flights

Get data-powered insights and trends into flights from London to Boston to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London to Boston flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Boston.
Our data shows that the cheapest route for a return flight from London to Boston cost €484 and was between London Heathrow Airport (LHR) and Boston (BOS). On average, the best prices are found if you fly this route. The average price for a return flight for this route is €484.

What is the cheapest month to fly from London to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London to Boston is September, where tickets cost €490 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is €761 and €709 respectively.

Can I save money by flying with a stopover from London to Boston?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €582 on average.

How far in advance should I book a flight from London to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from London to Boston, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low season

February

High season

October
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.

When to book flights from London to Boston

Are your dates flexible? Find out the best times to travel from London to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from London to Boston: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from London to Boston 
Verified travelerFlew with British AirwaysLHR-BOSMar 2025
Try to get an aisle seat and walk around the plane as often as possible. Your legs will thank you
ShawnFlew with British AirwaysLHR-BOSDec 2024
Know that gates are posted just about an hour before takeoff and it takes a bit of time to actually get to the gate. If you make a mistake there is no train back- you have to walk to the correct area and that are at least 10 minutes apart. Make sure to have ALL liquids ready to place in the tray at TSA
JaiFlew with British AirwaysLHR-BOSJan 2025
The boarding area was a bit crowded. The restaurants are serviceable, but not great.
Verified travelerFlew with British AirwaysLHR-BOSMar 2024
If you are arriving on a late flight check in to an airport hotel at Logan. Good choice, easy access and good start to your trip
MariaFlew with British AirwaysLHR-BOSMar 2024
everything went smoothly, found my connection very easily
RandyFlew with British AirwaysLHR-BOSMay 2024
Be aware that the cost for your luggage has gone up to $75!!
StephenFlew with British AirwaysLHR-BOSJan 2024
My best tip is make a ton of money, so you can afford to fly business or first class.
Verified travelerFlew with FinnairLHR-BOSDec 2023
If you’re looking for a hassle free and good customer experience, avoid BA; Fly American. As soon as you board the plane, set your watch to local US time to help adjust to the time difference.

FAQs for booking flights from London to Boston

  • Can I fly directly from London to Boston?

    Yes, there are many airlines which operate non-stop flights from London to Boston, among them are British Airways, Iberia, American Airlines and KLM Royal Dutch Airlines with departures from London Heathrow Airport. If you are wondering about low-cost airlines, check flights with Norwegian which also has non-stop flights from London to Boston in their offering.

  • Can I store my luggage at London Heathrow Airport?

    Yes, London Heathrow Airport has facilities for storing luggage open from 5am to 11pm and they are located in all terminals. You can leave your luggage at Excess Baggage for a few hours or days, the maximum duration is 90 days. It is possible to book this service in advance via the website.

  • Are there onsite airport hotels at the Boston Airport?

    Yes, you can choose between two hotels that are connected to Boston Logan Airport – Hilton Boston Logan Airport and Hyatt Harborside at Boston’s Logan Airport. If your terminal is too far to reach on foot then you can use free airport shuttles provided by the hotels. You can also find some other options near the airport, such as YOTEL Boston or Courtyard by Marriott Boston Logan Airport.

  • Does the Boston Logan Airport provide services for families?

    Boston Logan Airport provides Nursing Suites for breastfeeding mothers so they can feed and change their baby in private and away from the noise. There are also rocking chairs in the terminals which help parents in keeping the baby calm. Older kids can play and climb at Kidports that are located in every terminal.

  • What is the cheapest flight from London to Boston?

    In the last 3 days, the lowest price for a flight from London to Boston was €261 for a one-way ticket and €395 for a return.

  • Which airlines offer Wi-Fi service onboard planes from London to Boston?

    Air France, KLM, Virgin Atlantic, American Airlines, and Delta offer inflight Wi-Fi service on the London to Boston flight route.

  • Which aircraft models fly most regularly from London to Boston?

    The Boeing 777-200/200ER is the aircraft model that flies most regularly on the London to Boston flight route.

  • Which airline alliances offer flights from London to Boston?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between London and Boston, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from London to Boston?

    There are direct flights from London to Boston on a daily basis.

  • How does KAYAK find such low prices on flights from London to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Boston with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from London to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for €500 or less round-trip.
  • If you are looking to book your flight from London to Boston with British Airways, consider buying the Premium economy class which will provide you with some extra leg room and more space for the 7-hour flight, as well as a travel kit and a power outlet.
  • Have an early flight from London to Boston and want to eat a hearty breakfast? There are plenty of options with a breakfast menu available at London Heathrow Airport. Carluccio’s, The Curator, Giraffe Stop, Strada, The George and many more – take your pick!
  • If you decided to book your flight from London to Boston with Norwegian then you will most likely depart from London Gatwick Airport, so remember to leave yourself enough time to reach the airport stress-free. You can reach the airport in about 30 minutes via Gatwick Express Train from Victoria Station. If you are going to the airport by car, there are many parking options available.
  • People who are interested in art will not be bored at the Boston Logan Airport which is involved in a Public Art Program and displays local art works in different parts of the property. All terminals have a public information booth where you can seek directions to the exhibitions.
  • To transfer between the city and Boston Logan Airport, use the public transportation as it is very well connected and budget-friendly. You can take the Blue Line Subway and Silver Line Bus which have stops at every terminal. There is also a possibility that the hotel you booked provides shuttle services so make sure to check it before your flight.
See more tips

Prefer to fly direct from London to Boston Logan Intl?

Find which airlines fly direct from London to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

London to Boston Logan Intl

Monday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Tuesday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Wednesday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Thursday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Friday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Saturday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Sunday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

See more direct flights

Direct returns

Boston Logan Intl to London

Monday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Tuesday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Wednesday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Thursday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Friday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Saturday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

Sunday

American Airlines, British Airways, Delta, +2 more

American Airlines, British Airways, +3 more

See more direct flights
See more direct flights

Everything you need to know for your flight from London to Boston

Information on your arrival and departure airports

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