BOS - LON

£209 Find Cheap Flights from Boston to London – Compare and Save

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Everything you should know

Cheapest return fare
£529
Typical prices: £387-£609
TAP AIR PORTUGAL
Sat 7/11Sun 15/11
BOS - LHR • 1 stop
Cheapest direct flights
£529
Typical prices: £381-£590
British Airways
Mon 5/10Fri 9/10
BOS - LHR • Direct
Advice from real travellers
British Airways premium economy adds 18 cm legroom for long-haul comfort.
Virgin Atlantic Economy Delight adds extra legroom and priority boarding.
Expert advice
Expert advice
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Expert advice
Expert advice
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Direct flights
You can fly direct with American Airlines, British Airways, and others. Average duration is 6h 44m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Insights
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Avoid delays
Most punctual • 92% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £359 (return)
Shortest trip • 8h 50m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
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Booking Insights
Expert advice
Flight Deals

Cheap Flights from Boston to London (BOS-LON)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Boston to London

Sat, 7 Nov - Sun, 15 Nov
TAP AIR PORTUGAL Logo
18:00 - 11:25BOS  Boston Logan Intl-LHR London Heathrow
12h 25m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
18:30 - 14:40LHR  London Heathrow-BOS Boston Logan Intl
25h 10m1 stop Lisbon Humberto Delgado
£529TAP AIR PORTUGAL
Thu, 29 Oct - Sat, 14 Nov
TAP AIR PORTUGAL Logo
23:10 - 22:40BOS  Boston Logan Intl-LHR London Heathrow
19h 30m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
06:00 - 14:40LHR  London Heathrow-BOS Boston Logan Intl
13h 40m1 stop Lisbon Humberto Delgado
£529TAP AIR PORTUGAL
Mon, 5 Oct - Fri, 9 Oct
British Airways Logo
07:25 - 18:55BOS  Boston Logan Intl-LHR London Heathrow
6h 30mdirect
British Airways Logo
14:30 - 17:00LHR  London Heathrow-BOS Boston Logan Intl
7h 30mdirect
£529British Airways
Wed, 18 Nov - Sun, 22 Nov
British Airways Logo
07:30 - 19:00BOS  Boston Logan Intl-LHR London Heathrow
6h 30mdirect
British Airways Logo
19:10 - 21:50LHR  London Heathrow-BOS Boston Logan Intl
7h 40mdirect
£530British Airways
Mon, 28 Dec - Thu, 7 Jan
Delta Logo
18:40 - 07:05BOS  Boston Logan Intl-LHR London Heathrow
31h 25m1 stop Minneapolis St Paul
Delta Logo
09:40 - 12:20LHR  London Heathrow-BOS Boston Logan Intl
7h 40mdirect
£530Delta
Wed, 18 Nov - Sun, 22 Nov
Iberia Logo
18:35 - 06:15BOS  Boston Logan Intl-LHR London Heathrow
6h 40mdirect
Iberia Logo
19:10 - 21:50LHR  London Heathrow-BOS Boston Logan Intl
7h 40mdirect
£530Iberia
Sat, 7 Nov - Sun, 15 Nov
Delta Logo
19:30 - 20:10BOS  Boston Logan Intl-LHR London Heathrow
19h 40m1 stop New York John F Kennedy Intl
Delta Logo
08:40 - 19:01LHR  London Heathrow-BOS Boston Logan Intl
15h 21m1 stop Amsterdam Schiphol
£531Delta
Sun, 8 Nov - Sun, 15 Nov
Iberia Logo
21:30 - 09:15BOS  Boston Logan Intl-LHR London Heathrow
6h 45mdirect
Iberia Logo
19:10 - 21:50LHR  London Heathrow-BOS Boston Logan Intl
7h 40mdirect
£532Iberia
Sun, 8 Nov - Sun, 15 Nov
American Airlines Logo
17:30 - 08:10BOS  Boston Logan Intl-LHR London Heathrow
9h 40m1 stop New York John F Kennedy Intl
American Airlines Logo
13:10 - 15:45LHR  London Heathrow-BOS Boston Logan Intl
7h 35mdirect
£532American Airlines
Thu, 1 Oct - Thu, 8 Oct
American Airlines Logo
19:35 - 07:10BOS  Boston Logan Intl-LHR London Heathrow
6h 35mdirect
American Airlines Logo
10:05 - 12:40LHR  London Heathrow-BOS Boston Logan Intl
7h 35mdirect
£532American Airlines
Booking Insights

KAYAK’s insights & trends for Boston to London flights

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

How much is a return flight from Boston to London?

Flight prices are typical for this route right now.

Flights to London from Boston usually cost between £402 and £606 in September.
The lowest price found in the past 5 days was £529 on Multiple Airlines (20 Sept–29 Sept).

What is the cheapest Boston to London flight route?

The absolute cheapest return flight from Boston to London costs £218 on the route between Boston (BOS) and London Heathrow Airport (LHR). However, over the past month, flights between Boston (BOS) and London Gatwick Airport (LGW) were, on average, 44% cheaper than other Boston-London routes. The most popular route is between Boston (BOS) and London Heathrow Airport (LHR).

What’s the cheapest day of the week to fly from Boston to London?

When flying from Boston to London, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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

The cheapest month for flights from Boston to London is January, where tickets cost £389 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £758 and £651 respectively.

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

No, with an average price for the route of £610, prices are generally cheapest when you fly direct.

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

To get a below average price on the flight from Boston to London, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Boston to London

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Kirstie Pickering

Kirstie Pickering

Expert on LHR

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Good to know - Cheap tickets from Boston to London

Low season

January

Cheapest flight

£209
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from Boston to London Heathrow Airport

When to book flights from Boston to London

Are your dates flexible? Find out the best times to travel from Boston to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

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

Insights shared by verified travellers who flew the route from Boston to London 
alyciaFlew with American Airlines-Mar 2026
Long walk between terminals in boston Don't cut connections close
MarilynFlew with British Airways-Feb 2026
Meeting a friend at Heathrow was difficult as there are many terminals so far apart. Access to the train was great and an easy way to get to the downtown area.
Verified travelerFlew with British Airways-Jan 2024
Leave plenty of time if connecting in London as most connecting flights are in a different terminal which requires a bus or tram ride. Also if you’re not at the gate 30 minutes ahead they will not let you on the plane. Apparently this is a Heathrow not airline rule.

FAQs for booking flights from Boston to London

  • Does London Heathrow Airport have any onsite hotels?

    Yes, it does. Sofitel is an accommodation located at Terminal 5, while Hilton London Heathrow Airport is located at Terminal 4. You can find Premier Inn London Heathrow Airport Hotels at Terminals 4 and 5, while Hilton Garden Inn London Heathrow Airport offers accommodations at Terminals 2 and 3.

  • What’s the best way from London Gatwick Airport to Central London?

    The best and fastest way from London Gatwick Airport to Central London is the Gatwick Express train service. You can take it from the airport station near the South Terminal for about £18 per person one-way or £36 for a return fare. Arriving flights at North Terminal can ride the free shuttle, which takes about 2min to reach South Terminal.

  • Where can I exchange currency at London Stansted Airport?

    Both International Currency Exchange (ICE) and Moneycorp operate foreign exchange offices at London Stansted Airport. The ICE office is located in the Main Terminal Building, while Moneycorp is located near the Baggage Reclaim Hall, International Arrivals.

  • Are there any prayer rooms at London Heathrow Airport?

    Yes, there are, but most of them tend to be located in the Departure Lounges of the terminal buildings. You can use St. George’s Chapel, which is open to all faiths and is located a short distance from Heathrow Airport’s Central Bus Station.

  • What is the fastest way from the airport to the center of London?

    The high-speed Heathrow Express service runs every 15 minutes and takes 15 minutes to arrive at Paddington station in central London. This service runs from terminals 2, 3, 4, and 5 at Heathrow Airport. If you arrive at Gatwick Airport, the Gatwick Express trains to Central London depart every 15 minutes and take half an hour to arrive at London Victoria Station. The fastest way between Stansted Airport and Central London is via the Stansted Express, which takes 36 minutes to Tottenham Hale, where you can connect to the London Underground. Free Wi-Fi and charging outlets are available onboard.

  • Is Wi-Fi available at the airports?

    Passengers can access free Wi-Fi at Boston Logan International Airport and charging stations are also available throughout the terminals. London, Heathrow International, Gatwick, Luton, and Stanstead airports all offer free Wi-Fi so travelers can stay connected.

  • How do I get to Boston Logan International Airport?

    There are a number of easy ways to get to Boston Airport. The Logan Express is a non-stop bus service between Back Bay and the airport. Water shuttles and taxis arrive at Boston Dock, where passengers can catch a direct shuttle bus to the departure terminals. The MBTA also offers bus and subway services to the airport from downtown, connecting from South Station or North Station.

  • I’m traveling with children through Boston Airport. What facilities are available?

    To keep little travelers occupied, Boston Logan Airport has Kidport children’s play areas in Terminals A, B, and C. Changing rooms are also available and many restaurants have child-friendly meals and snacks.

  • What should I know about self-transfer flights on this route?

    PLAY and easyJet offer cheaper flights with self-transfer stopovers at Keflavik Airport (KEF). They're a good choice for budget travellers but carry a risk. The stopovers tend to be shorter, and you'll need to collect your luggage and recheck it before boarding the connecting flight. If there are delays and you miss your connecting flight, you're responsible for any costs involved in booking another.

  • How many bags can I bring on a flight from Boston to London?

    Luggage policies differ by airline. A frequently used airline for this route, British Airways, permits passengers to carry one personal item, one carry-on bag and two checked bags of 23 kg. If you're a business-class traveller or first-class passenger, you should be allowed more check-in bags and a total weight of at least 32 kg.

  • How can I bring food on my flight?

    As per airline regulations, passengers can bring their food on the flight. You'll be limited to 100 ml packaging and certain foods may be restricted, depending on the airline. Airlines generally won't allow you to heat food on a flight.

  • What is the border control process for UK nationals flying from Boston to London?

    The border control process on these flights involves presenting a valid passport or national ID card, answering questions from immigration officers and having your documents checked. UK nationals may also be subject to additional screening or questioning.

  • What is the cheapest flight from Boston to London?

    In the last 5 days, the lowest price for a flight from Boston to London was £209 for a one-way ticket and £529 for a return.

  • Which airports will I be using when flying from Boston to London?

    On your way to London, you’ll fly out from Boston Logan Intl. You’ll be landing in one of London’s 4 airports: London Gatwick, London Heathrow, London Southend, or London Stansted.

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

    JetBlue, Delta, and American Airlines offer inflight Wi-Fi service on the Boston to London flight route.

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

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

  • Which airline alliances offer flights from Boston to London?

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

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

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

  • Which is the best airline for flights from Boston to London, KLM or Delta?

    The two airlines most popular with KAYAK users for flights from Boston to London are KLM and Delta. With an average price for the route of £405 and an overall rating of 7.8, KLM is the most popular choice. Delta is also a great choice for the route, with an average price of £641 and an overall rating of 7.8.

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

    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 Boston to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Boston 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 Boston to London?

    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 London with an airline and back to Boston with another airline.

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

    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 London from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

  • Looking for a cheap flight from Boston to London? 25% of our users found flights on this route for £280 or less one-way and £501 or less round-trip.
  • Flights from Boston to London depart from Boston Logan International Airport, in Massachusetts, depart from Terminal E. A direct flight only takes around six and a half hours to arrive in London.
  • Airlines that fly non-stop from Boston to London include Norwegian Air, Delta, Virgin Atlantic, Finnair, and British Airways. Depending in the airline, flights with layovers can be cheaper. Wow Airlines connects through Reykjavik, Aer Lingus has a stopover in Dublin, Lufthansa has a layover in Washington, while Swiss Airlines stops in Zurich.
  • There are five major airports in London, so travelers should choose flights and arrival airports depending on where you’re staying in the UK. Flights from Boston to London can arrive at London Heathrow International Airport (located 14 miles west of central London), Gatwick (25 miles to the southwest), Luton (30 miles to the northwest), or Stanstead (30 miles to the northeast).
  • While you’re waiting for your flight to depart, there are a number of exclusive airport lounges for international travelers. The British Airways Lounge has great views of the Boston skyline, with plenty of dining options, a modern bar, and a business suite for those working on the go. Passengers can also visit The Lounge in Terminal E to enjoy a selection of light refreshments and a quiet space to work or read. Lufthansa and Aer Lingus also have private lounges for members. There are a couple of airline lounges at Boston Logan Airport’s John Volpe International Terminal, or Terminal E, where you can relax and enjoy a meal before heading off for London. Air France Lounge (airside Terminal E, Gate 4) and The Club (airside Terminal E) both require prepaid passes for admittance. Lufthansa Business Lounge (airside Terminal E, Gate 11) is reserved for Lufthansa passengers only.
  • If you need to get around Boston Logan Airport, free Massport shuttle buses run every 5-6 minutes to connect domestic and international terminals, the rental car center, the airport station on the MBTA Blue Line, and the Boston Logan dock for those arriving by water taxi.
  • You can get flights from Boston General Edward Lawrence Logan International Airport (BOS) to most London metro area airports. Virgin Atlantic and British Airways are two airlines offering direct service to London Heathrow Airport (LHR), while Aer Lingus offers one-stop service to London Gatwick Airport (LGW), and Turkish Airlines offers the same to London Stansted Airport (STN). Flights to all other London airports involve multiple stopovers.
  • MBTA offers excellent public transport links to Boston Logan Airport. Silver Line SL1 (about $2.65 (£1.95) per person one-way) is a rapid transit bus connecting South Station with all four terminal buildings (A, B, C, and E). The Blue Line on the subway system (about $2.75 (£2.00) per person one-way) ferries passengers from South Station to Airport Station, where Massport airport shuttles buses will transfer you and your luggage to your terminal.
  • For families travelling with children on flights from Boston to London, Boston Logan Airport provides changing tables in all of the Male and Female bathrooms throughout the Volpe International Terminal, and there are Nursing Rooms available at the terminal, near Gates 1 and 9 (Mamava Suites).
  • Keep abreast of your flight’s status and all relevant information including gate number when you download the Boston Logan Airport app to your electronic devices. You can even get special offers on airport services like parking as well as special discounts on behalf of restaurants and shops at the airport.
  • You can get flights from Boston General Edward Lawrence Logan International Airport (BOS) to most London metro area airports. Virgin Atlantic and British Airways are two airlines offering direct service to London Heathrow Airport (LHR), while Aer Lingus offers one-stop service to London Gatwick Airport (LGW), and Turkish Airlines offers the same to London Stansted Airport (STN). Flights to all other London airports involve multiple stopovers.
  • MBTA offers excellent public transport links to Boston Logan Airport. Silver Line SL1 (about $2.65 (£1.95) per person one-way) is a rapid transit bus connecting South Station with all four terminal buildings (A, B, C, and E). The Blue Line on the subway system (about $2.75 (£2.00) per person one-way) ferries passengers from South Station to Airport Station, where Massport airport shuttles buses will transfer you and your luggage to your terminal.
  • There are a couple of airline lounges at Boston Logan Airport’s John Volpe International Terminal, or Terminal E, where you can relax and enjoy a meal before heading off for London. Air France Lounge (airside Terminal E, Gate 4) and The Club (airside Terminal E) both require prepaid passes for admittance. Lufthansa Business Lounge (airside Terminal E, Gate 11) is reserved for Lufthansa passengers only.
  • For families travelling with children on flights from Boston to London, Boston Logan Airport provides changing tables in all of the Male and Female bathrooms throughout the Volpe International Terminal, and there are Nursing Rooms available at the terminal, near Gates 1 and 9 (Mamava Suites).
  • Keep abreast of your flight’s status and all relevant information including gate number when you download the Boston Logan Airport app to your electronic devices. You can even get special offers on airport services like parking as well as special discounts on behalf of restaurants and shops at the airport.
  • If you're catching one of the cheap flights to London from Boston landing at Stansted Airport (STN), a convenient way to get to the city centre is to hop on the Stansted Express. It leaves the airport roughly every 15 minutes and takes about 45 minutes to get to Liverpool Street in London.
  • While low-cost airlines, like PLAY or easyJet, can be tempting due to their cheaper prices, major airlines often provide added benefits, such as in-flight meals, entertainment options and more comfortable seating arrangements. Additionally, major airlines tend to have better customer service and are more likely to offer refunds.

Prefer to fly direct from Boston to London?

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

Direct departures

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

Direct returns

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

More options for your flight from Boston to London

Complete your trip to London with a hotel stay or car hire