336 € Cheap Flights from Boston Logan International to London

Compare Boston Logan International to London flight deals

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

Book the best London fare with no extra fees

Flight deals from Boston Logan International to London

Looking for a cheap last-minute deal or the best return flight from Boston Logan International to London? 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 September.

Direct flights from Boston Logan International to London

Alternative Boston Logan International to London routes

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

Boston to London: Flight information

The things to know before you go.
Cheapest flight found336 €
Cheapest month to flySeptember
Average flight time6 hrs, 43 mins
Most popular airlineFinnair
Average flights per week200

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 336 €. 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 42 minutes is the average flight time from Boston Logan International to London.
Finnair, KLM and American Airlines fly direct from Boston Logan International to London.
As of August 2025, there are 400 flights per week flying from Boston Logan International to London.
The cheapest month to fly from Boston Logan International to London is usually September.
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 336 €.
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 Monday, 22 September 2025.
Yes – the average flight time is 6 hours and 42 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 August, 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, United and jetBlue offer the cheapest flight tickets to London.

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

  • The average time for a direct flight from Logan International Airport to London is 7 hours 40 minutes.

  • The timezone in London is UTC+0. The city is four hours ahead of Boston, where Logan International Airport is located.

  • The busiest route is from Logan International Airport (BOS) to London Heathrow Airport (LHR). Take your pick of 52 services every week between these two airports. If you'd like to get on your way as soon as you can, the earliest flight from BOS to LHR is the 07:15 British Airways option. If you prefer to leave later in the day, the final departure is at 23:00 with British Airways.

  • To avoid missing your BOS to London flight, allow plenty of time for things like baggage drop and finding your gate. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.

  • If you're heading away during a bank holiday or another peak period, give yourself more time. A good rule is two hours ahead of domestic flights and up to four hours before international departures. Security and check-in lines will be longer.

  • Direct Logan International Airport to London tickets are available for booking. London Heathrow Airport (LHR) is where you'll disembark.

  • These are some of the leading carriers offering direct flights from Logan International Airport to London:

  • We make it simple to book plane tickets from BOS to London with a stopover. To see your options, uncheck 'Direct flights only.' Next, pick a flight that has a stop long enough to tour the city of your choice. Major stopovers include:

    • Amsterdam Airport Schiphol (AMS)

    • Frankfurt Airport (FRA)

    • John F. Kennedy International Airport (JFK)

  • Travelling from central Boston to BOS takes around 25 minutes on public transport. If you drive, ride-share or get a cab, you'll cover the 3 kilometres in 10 minutes or so, depending on traffic conditions.

  • Searching for a hotel close to BOS? If you're catching an early flight from Logan International Airport to London, these stays will get you from your pillow to the plane in no time:

  • 73.94% of flights taking off from Logan International Airport reach their destination on schedule.

  • BOS is located at One Harborside Drive.

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

  • 160 € is currently the best price for a one-way Logan International Airport to London flight. A return plane ticket starts from 336 €. These prices may change based on demand.

  • Book three months before flying. Pricing trends show that this is the ideal window for finding cheap flights from BOS to London.

  • The best month for picking up cheap Logan International Airport to London tickets is July. Use the 'Whole month' tool to compare prices, then select the dates offering the lowest fares.

  • Spend less time searching for cheap flights from BOS to London by setting up a Price Alert. You'll receive an email or push notification on the app when a special offer becomes available.

  • Save money on your flight from Logan International Airport to London with the help of our filters. Choose your preferred duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in London

London Heathrow Airport (LHR)

  • The distance from London Heathrow Airport (LHR) to central London is roughly 31 kilometres. It takes around 55 minutes to get to the centre driving.

  • It takes around 1 hour to get there using public transport.

  • The last thing you want is a long journey to your hotel if you're getting in late on a flight from Logan International Airport to London. Book one of these accommodation options near LHR instead:

  • Travel at your own pace with a London Heathrow Airport rental car. Book your wheels from Surprice, U-Save or Green Motion and see more of London and beyond.

  • For the best deal, reserve your ride from London Heathrow Airport about one week in advance of your flight from BOS to London.

London Gatwick Airport (LGW)

  • The centre of London is about 80 kilometres from London Gatwick Airport (LGW). After your flight from Logan International Airport to London has hit the runway and you've made your way through the terminal, expect a drive of about 1 hour 20 minutes.

  • If you travel by public transport, you'll reach the centre in 30 minutes or so.

  • There are some comfortable places to call home for the night near LGW. Unwind and get cosy after your BOS to London flight at any of these perfectly located options:

  • Forget about inconvenient public transport schedules or long cab queues. Pick up a London Gatwick Airport rental car and take your journey in whatever direction you like. Check out the rates and availability from Green Motion, U-Save and Drivalia.

  • Get the lowest price by reserving your ride from LGW three weeks in advance. You'll also have access to a greater selection of vehicles.

Stansted Airport (STN)

  • Hop off your flight from Logan International Airport to London and head for your hotel or start discovering the city right away. The centre of London is around 64 kilometres from Stansted Airport (STN) and typically takes 1 hour to reach by car.

  • The journey will take roughly 1 hour 25 minutes when travelling by public transport.

  • Enjoy a more leisurely start to your trip by checking in to a hotel near STN after your BOS to London flight. Recharge after a day of travel or just take a moment to get your footing in a new city at:

  • Begin your travels without stressing about how to get to where you're going with a Stansted Airport rental car. Book your ideal wheels with reliable companies here like Green Motion, Drivalia and Europcar.

  • Get ahead of the game and reap the rewards. Book your vehicle from STN four weeks before your flight from Logan International Airport to London for the best rates.

Best time to go to London

  • Before locking in your flights from Logan International Airport to London, consider which time of year works best for you. High season in London offers a bustling atmosphere and plenty of activities, while the low season means you'll get cheaper deals on hotels and smaller crowds.

  • Before booking a Logan International Airport to London plane ticket, think about the type of weather you enjoy. July is the warmest month in London, with temperatures ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • Search for cheap tickets from BOS to London in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

More about London

  • Start your London trip right by choosing the ideal place to stay. As soon as you've booked your flight from Logan International Airport to London, explore our range of accommodation options including:

  • There are so many things to discover in this city it can be difficult to know where to start. The British Museum, Big Ben and Buckingham Palace are highlights which should be on any good London itinerary.

Explore more of United Kingdom

  • You've done London, now it's time to explore other parts of United Kingdom. Journey about 161 kilometres north-west to Birmingham to tick off its top attractions. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you've got a jam-packed schedule ahead.

  • Bristol is another must-experience destination in United Kingdom and is around 177 kilometres west of London. No trip is complete without visiting Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

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