428 € Cheap Flights from Boston Logan International to London

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Flight deals from Boston Logan International to London

Looking for a cheap last-minute deal or the best return flight from Boston Logan International Airport to London? If you want to travel next month, return fares start from 537 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Boston Logan International to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to London flights are currently cheapest in October.

Direct flights from Boston Logan International to London

Boston to London: Flight information

The things to know before you go.
Cheapest flight found428 €
Cheapest month to flyOctober
Average flight time6 hrs, 47 mins
Most popular airlineKLM
Average flights per week346

Finding cheap flights from Boston Logan International to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Boston Logan International to London is 428 €. 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.
6 hours and 46 minutes is the average flight time from Boston Logan International to London.
KLM, Iberia and American Airlines fly direct from Boston Logan International to London.
As of July 2026, there are 357 flights per week flying from Boston Logan International to London.
The cheapest month to fly from Boston Logan International to London is usually October.
If you're flying from Boston Logan International Airport, the cheapest airport near London is London Heathrow – which is 22.9 km away from the centre of London. We've found flights into this airport from 428 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to London on Sunday, 18 October 2026.
Yes – the average flight time is 6 hours and 46 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 London 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 London is around 40 days in advance, so don’t leave your flight to the last minute.

In July, the average temperature is usually around 17°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, LEVEL and jetBlue offer the cheapest flight tickets to London.

Travelling from Boston Logan International Airport (BOS) to London: what you need to know

  • Expect to be in the air for 7 hours 40 minutes. On average, that's the time it takes for a direct flight from Boston Logan International Airport to London.

  • Boston Logan International Airport is located in Boston. Following the UTC+0 timezone, London is five hours ahead of Boston.

  • The most popular route is from Boston Logan International Airport (BOS) to London Heathrow Airport (LHR). You can select from 51 services every week between these two airports. If you want to head off as soon as possible, the earliest flight from BOS to LHR is the 07:15 British Airways service. If you'd rather travel later, the last departure is at 23:00 with British Airways.

  • To avoid missing your BOS to London flight, allow plenty of time to check in and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Travelling over a peak time like July? Public holidays and other popular seasons can mean longer queues at check-in and security. Play it safe and arrive up to four hours before international flights and two hours before domestic departures.

  • Begin your journey at BOS and fly straight to London Heathrow Airport (LHR). That's where you can expect to land when searching for Boston Logan International Airport to London tickets.

  • A good selection of airlines operate direct flights from Boston Logan International Airport to London. Some of the most popular are:

  • Think about adding a stopover to potentially save on your plane ticket from BOS to London. All you need to do is uncheck 'Direct flights only' during your search. Break up your journey by stopping at one of these connection hubs:

    • Amsterdam Schiphol Airport (AMS)

    • Frankfurt Airport (FRA)

    • Paris Charles de Gaulle Airport (CDG)

  • BOS is around 3 kilometres from central Boston. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the journey time to be around 25 minutes.

  • Searching for a hotel close to BOS? If you're boarding an early flight from Boston Logan International Airport to London, these accommodation options will put you moments from your departure gate:

  • When it comes to the on-time performance of Boston Logan International Airport, data shows 75% of flights complete their journey on time.

  • The address for BOS is One Harborside Drive.

How to find the cheapest flights from Boston Logan International Airport (BOS) to London

  • 176 € is the lowest price we've found for a one-way Boston Logan International Airport to London flight. A return ticket right now is 428 €. Depending on when you book and the availability, these fares may change.

  • To secure cheap flights from BOS to London, reserve your trip two months ahead of your departure date.

  • The best month for finding cheap Boston Logan International Airport to London tickets is July. Use the 'Whole month' tool to compare prices, then choose the dates that offer the biggest savings.

  • Snapping up a cheap flight from BOS to London is a breeze with Price Alerts. Simply set up one of these automatic notifications and we'll notify you as soon as there's a better deal.

  • Pick your preferred arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Boston Logan International Airport to London by 'Best,' 'Fastest' or 'Cheapest.'

Airports in London

London Heathrow Airport (LHR)

  • The distance from London Heathrow Airport (LHR) to central London is roughly 24 kilometres. It takes about 45 minutes to get to the centre driving.

  • Getting to the centre on public transport takes around 25 minutes.

  • If you're coming in on a late flight from Boston Logan International Airport to London, nothing beats the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and resting soon after at one of these hotels near LHR:

  • Lock in the best deal by reserving your ride from London Heathrow Airport around one week in advance of your flight from BOS to London.

London Gatwick Airport (LGW)

  • After your flight from Boston Logan International Airport to London has arrived, you can make your way to the city centre in around 1 hour 5 minutes by car. Central London is roughly 48 kilometres from London Gatwick Airport (LGW).

  • If you choose to travel on public transport, the ride to the centre will take you 1 hour 20 minutes or so.

  • After stepping off your BOS to London flight, tuck yourself in at a hotel near LGW. These are some comfortable accommodation options that'll help you slip into relaxation mode:

  • Avoid paying extra. Securing your ride three weeks ahead of your arrival at LGW can help you lock in a better rate.

London Stansted Airport (STN)

  • Step off your flight from Boston Logan International Airport to London and go straight to your hotel or start sightseeing right away. Central London is around 56 kilometres from London Stansted Airport (STN) and usually takes 1 hour 5 minutes to reach by car.

  • The journey takes about 45 minutes on public transport.

  • Choose a hotel near STN and go from landing to lounging in your room in a flash. Whether you're coming in on a late BOS to London flight or just want a stress-free arrival, these accommodation options offer a quick route to a good night's sleep:

  • Enjoy a payoff when you plan ahead. Book your ride from STN four weeks before your flight from Boston Logan International Airport to London for the best rates.

Best time to go to London

  • July is the busiest month for flights from Boston Logan International Airport to London. To avoid the crowds, visit London in January.

  • The warmest month in London is July, with temperatures ranging between 11ºC (52ºF) and 26ºC (79ºF). Book your Boston Logan International Airport to London plane ticket then if that's the weather you find most pleasant.

  • January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for a cheap ticket from BOS to London around that time if you want to travel when it's cooler.

More about London

  • Once you've booked your flight from Boston Logan International Airport to London, find a hotel that offers both comfort and a great location. Make one of these options your base for exploring London:

  • Westminster Abbey and The British Museum are a couple of leading attractions to add to your London must-do list. Keep the sightseeing going at Big Ben.

Explore more of the United Kingdom

  • Manchester is just one of the many places in the United Kingdom waiting to be explored once you've taken in the sights of London. Around 257 kilometres away to the northwest, its top attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • If you're interested in discovering another major destination in the United Kingdom, consider Birmingham, about 161 kilometres northwest of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.