BOS - LON

$395 Find Cheap Flights from Boston to London – Compare and Save

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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

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
$993Delta
Fri, 25 Sep - Wed, 30 Sep
Delta Logo
13:32 - 06:20BOS  Boston Logan Intl-LHR London Heathrow
11h 48m1 stop New York John F Kennedy Intl
Delta Logo
11:30 - 19:35LHR  London Heathrow-BOS Boston Logan Intl
13h 05m1 stop Paris Charles de Gaulle
$996Delta
Tue, 8 Dec - Tue, 22 Dec
Virgin Atlantic Logo
13:04 - 07:15BOS  Boston Logan Intl-LCY London City
13h 11m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol
Virgin Atlantic Logo
08:40 - 14:20LCY  London City-BOS Boston Logan Intl
10h 40m1 stop Amsterdam Schiphol
$998Virgin Atlantic
Fri, 23 Oct - Fri, 30 Oct
Multiple Airlines Logo
20:05 - 08:00BOS  Boston Logan Intl-LHR London Heathrow
6h 55mdirect
Multiple Airlines Logo
11:25 - 19:00LHR  London Heathrow-BOS Boston Logan Intl
11h 35m1 stop Madrid Barajas
$998Multiple Airlines
Mon, 30 Nov - Sun, 6 Dec
Delta Logo
20:00 - 07:50BOS  Boston Logan Intl-LHR London Heathrow
6h 50mdirect
Delta Logo
12:55 - 15:50LHR  London Heathrow-BOS Boston Logan Intl
7h 55mdirect
$999Delta
Fri, 23 Oct - Fri, 30 Oct
Multiple Airlines Logo
20:45 - 16:55BOS  Boston Logan Intl-STN London Stansted
15h 10m1 stop Madrid Barajas
Multiple Airlines Logo
06:00 - 19:00STN  London Stansted-BOS Boston Logan Intl
17h 00m1 stop Madrid Barajas
$1,000Multiple Airlines
Sun, 6 Dec - Thu, 17 Dec
Scandinavian Airlines Logo
17:35 - 18:50BOS  Boston Logan Intl-LHR London Heathrow
20h 15m2 stops Kastrup Copenhagen Oslo Gardermoen
Scandinavian Airlines Logo
07:05 - 15:45LHR  London Heathrow-BOS Boston Logan Intl
37h 40m2 stops Oslo Gardermoen Kastrup Copenhagen
$1,002Scandinavian Airlines
Wed, 13 Jan - Tue, 19 Jan
Virgin Atlantic Logo
19:20 - 16:35BOS  Boston Logan Intl-LCY London City
16h 15m1 stop Amsterdam Schiphol
Virgin Atlantic Logo
08:40 - 14:23LCY  London City-BOS Boston Logan Intl
10h 43m1 stop Amsterdam Schiphol
$1,003Virgin Atlantic
Wed, 30 Sep - Sun, 4 Oct
Scandinavian Airlines Logo
17:40 - 17:00BOS  Boston Logan Intl-LHR London Heathrow
18h 20m2 stops Kastrup Copenhagen Stockholm Arlanda
Scandinavian Airlines Logo
18:40 - 15:35LHR  London Heathrow-BOS Boston Logan Intl
25h 55m1 stop Kastrup Copenhagen
$1,003Scandinavian Airlines
Sat, 17 Oct - Sun, 1 Nov
TAP AIR PORTUGAL Logo
23:15 - 11:20BOS  Boston Logan Intl-LGW London Gatwick
31h 05m1 stop Porto
TAP AIR PORTUGAL Logo
09:05 - 20:45LGW  London Gatwick-BOS Boston Logan Intl
16h 40m1 stop Porto
$1,005TAP AIR PORTUGAL
Booking Insights

Price, demand, and travel trends for Boston to London flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Boston to London with more confidence.

How much is a return flight from Boston to London?

Return flights from Boston to London start at $993. Prices are typical for this route right now, with typical return fares ranging from $741 to $1,234. The lowest price found in the past 5 days was $993 on Delta.

What is the cheapest Boston to London flight route?

Boston (BOS) to London Luton Airport (LTN) is the cheapest Boston to London route, averaging $819 return. Other Boston to London routes average $1,112, based on KAYAK data over the past 12 months.

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

Monday is the cheapest day of the week to fly from Boston to London and is 2% cheaper than the average day. Tuesday is the most expensive day with flight prices 2% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • January is the cheapest month to fly from Boston to London at $725 return.
  • June ($1,406) and July ($1,211) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 94% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Boston to London the cheapest?

Flights from Boston to London are cheapest 26 weeks before departure. Booking in this window typically costs about 9% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Boston to London flights

Low season

February

Cheapest flight

$395
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flights 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.

Your Boston to London flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • 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.

  • Which airlines offer extra legroom and free seat selection on Boston to London flights?

    Among airlines operating Boston to London flights:

    • British Airways: offers extra legroom; offers free seat selection
    • Virgin Atlantic: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • JetBlue: offers extra legroom; offers free seat selection
    • American Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Boston to London?

    5 airlines operate flights between Boston and London. The airlines offering direct flights on this route include:

    • British Airways
    • JetBlue
    • Virgin Atlantic
    • American Airlines
    • Delta

  • Which airports can I use when flying from Boston to London?

    Flights from Boston to London usually depart from Boston Logan Intl (BOS) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

  • Which airlines include bags at no extra cost on Boston to London flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • British Airways: a cabin bag and a checked bag in Economy class
    • Virgin Atlantic: a cabin bag and a checked bag in Economy class
    • Delta: a cabin bag and a checked bag in Economy class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • Which cabin classes can I book on flights from Boston to London?

    Only Economy class is available on flights from Boston to London.

  • How much can I save by having a stopover when flying from Boston to London?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average $679 return via Porto (OPO), compared with $992 for direct.

  • What is the standard checked bag allowance on flights from Boston to London?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge $74–$139 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which airports do connecting flights from Boston to London pass through?

    One-stop flights from Boston to London most commonly connect through:

    • Reykjavik Keflavik Intl (KEF) – 43% of one-stop connections
    • Shannon (SNN) – 14% of one-stop connections
    • Dublin (DUB) – 9% of one-stop connections
    • Zurich (ZRH) – 5% of one-stop connections

    Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Boston to London?

    Yes. Being flexible with your travel dates can save you up to 4% on the Boston to London route. Monday is the cheapest departure day at $967 return on average, while Tuesday is the most expensive at $1,006, a difference of $39. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed on the route from Boston to London?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Boston to London route, 12% of flights were delayed in the past 3 months, with delays averaging 2 hours 27 minutes.

  • How are flight departures from Boston to London spread across the day?

    Evening is the busiest departure period on Boston to London flights, with 57% leaving in that window. Night departures account for 28%, Morning flights for 15%, and Afternoon flights for 0%.

  • What popular places can I visit in London?

    Some of the most popular sights in London are Paddington Station, London Victoria Station, and King's Cross Railway Station. These are among the most viewed places in London on KAYAK.

  • What are the earliest and latest flights from Boston to London?

    These are the earliest and latest flight times available from Boston to London:

    • Earliest: departs at 07:10 and lands at 13:53
    • Latest: departs at 22:35 and lands at 05:18.

    The flight takes about 6h 43m.

  • How expensive are last-minute Boston to London flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 1% below the route average of $984. Booking late can sometimes save money on this route, but inventory is limited.

  • How long is a flight from Boston to London?

    A direct flight from Boston to London takes 6h 43m, covering 8,461 km.

  • Do I need a passport to fly from Boston to London?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Boston to London looking right now?

    One-way fares from Boston to London are currently lower than usual. Average one-way flight prices are about $413, which is 19% below the typical average for this route.

  • How does American Airlines's on-time performance compare to other airlines on Boston to London flights?

    American Airlines is slightly above the route average for timely arrivals, while Virgin Atlantic has a lower on-time arrival rate. On-time arrival rates on Boston to London flights are:

    • American Airlines: 92% on time
    • Virgin Atlantic: 91% on time
    • British Airways: 88% on time

    On average, flights on this route are punctual 88% of the time.

  • How do delay rates compare for morning and evening flights from Boston to London?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different stopover airport from Boston to London?

    Flying via Dublin (DUB) gives the shortest average 1-stop total travel time of 9h 57m, compared to 10h 26m via Shannon (SNN) and 10h 47m via Newark (EWR).

  • What is the time difference between Boston and London?

    London is 5 hours ahead of Boston (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car hire options are available in London?

    Since London is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
    Near London Heathrow Airport (LHR) – daily rates from around $10:

    · GREEN MOTION
    · DRIVALIA
    · Europcar
    · Alamo
    · Hertz

    Near London Gatwick Airport (LGW) – daily rates from around $12:

    · GREEN MOTION
    · DRIVALIA
    · U-Save
    · Europcar
    · Alamo

    Near London City Airport (LCY) – daily rates from around $15:

    · GREEN MOTION
    · Budget
    · Hertz
    · Avis
    · Sixt

    Near London Luton Airport (LTN) – daily rates from around $15:

    · GREEN MOTION
    · DRIVALIA
    · Alamo
    · Europcar
    · Budget

    Near London Stansted Airport (STN) – daily rates from around $14:

    · GREEN MOTION
    · DRIVALIA
    · Europcar
    · Alamo
    · U-Save

  • How much should I expect to pay for a Boston to London flight?

    Return flights from Boston to London range from $741 to $1,234, with an average of $984 over the past 12 months. Anything below $741 counts as a good deal.

  • Which airlines offer Wi-Fi on Boston to London flights?

    Four airlines offer in-flight Wi-Fi on Boston to London flights:

    • • Delta
    • • JetBlue
    • • American Airlines
    • • Air France

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

Your guide to booking Boston to London flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure instead of Tuesday. On this route, Monday flights average $967 – about $39 less than Tuesday (4% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 9% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to London trip for January. Fares historically average $725 return in that month – typically $682 less than the most expensive month, which is June (based on the last 12 months).
  • If arriving on time is high on your priority list, American Airlines is the strongest pick on this route. 92% of American Airlines flights from Boston to London arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 88%. When flights on this route do arrive late, the average delay is 2 hours27 minutes, so choosing an airline with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Porto Airport (OPO) can be cheaper than flying direct. The cheapest stopover option averages $679 return on this route – about $312 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near London City Airport

    · Crowne Plaza London Docklands By IHG
    · Good Hotel London
    · Novotel London Excel

    Near London Heathrow Airport

    · Hilton London Heathrow Airport

    Near London Gatwick Airport

    · Premier Inn London Gatwick Airport
  • 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.

Prefer to fly direct from Boston Logan Intl 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

Car hire in London
Hotels in London
Holidays in London