Flights from London to Boston available from GBP 391*

Promo code

Our best rates from London to Boston

Displaying fares for September-2026
  • LON–BOS, 28 09 2026 – 12 10 2026: From GBP 644
    28

    Mo

    SEP

  • LON–BOS, 29 09 2026 – 12 10 2026: From GBP 642
    29

    Tu

  • LON–BOS, 30 09 2026 – 14 10 2026: From GBP 592
    30

    We

  • LON–BOS, 01 10 2026 – 13 10 2026: From GBP 668
    01

    Th

    OCT

  • LON–BOS, 02 10 2026 – 14 10 2026: From GBP 616
    02

    Fr

  • LON–BOS, 03 10 2026 – 14 10 2026: From GBP 617
    03

    Sa

  • LON–BOS, 04 10 2026 – 12 10 2026: From GBP 638
    04

    Su

  • LON–BOS, 05 10 2026 – 12 10 2026: From GBP 913
    05

    Mo

  • LON–BOS, 06 10 2026 – 13 10 2026: From GBP 393
    06

    Tu

  • LON–BOS, 07 10 2026 – 14 10 2026: From GBP 391
    07

    We

  • LON–BOS, 08 10 2026 – 14 10 2026: From GBP 393
    08

    Th

  • LON–BOS, 09 10 2026 – 12 10 2026: From GBP 456
    09

    Fr

  • LON–BOS, 10 10 2026 – 18 10 2026: From GBP 563
    10

    Sa

  • LON–BOS, 11 10 2026 – 23 10 2026: From GBP 1,033
    11

    Su

  • LON–BOS, 12 10 2026 – 09 11 2026: From GBP 1,033
    12

    Mo

  • LON–BOS, 13 10 2026 – 23 10 2026: From GBP 406
    13

    Tu

  • LON–BOS, 14 10 2026 – 08 11 2026: From GBP 436
    14

    We

  • LON–BOS, 15 10 2026 – 23 10 2026: From GBP 460
    15

    Th

  • LON–BOS, 16 10 2026 – 09 11 2026: From GBP 611
    16

    Fr

  • LON–BOS, 17 10 2026 – 03 11 2026: From GBP 712
    17

    Sa

  • LON–BOS, 18 10 2026 – 09 11 2026: From GBP 532
    18

    Su

  • LON–BOS, 19 10 2026 – 15 11 2026: From GBP 531
    19

    Mo

  • LON–BOS, 20 10 2026 – 03 11 2026: From GBP 406
    20

    Tu

  • LON–BOS, 21 10 2026 – 03 11 2026: From GBP 404
    21

    We

  • LON–BOS, 22 10 2026 – 10 11 2026: From GBP 453
    22

    Th

  • LON–BOS, 23 10 2026 – 14 11 2026: From GBP 773
    23

    Fr

  • LON–BOS, 24 10 2026 – 03 11 2026: From GBP 937
    24

    Sa

  • LON–BOS, 25 10 2026 – 03 11 2026: From GBP 773
    25

    Su

  • LON–BOS, 26 10 2026 – 03 11 2026: From GBP 533
    26

    Mo

  • LON–BOS, 27 10 2026 – 03 11 2026: From GBP 532
    27

    Tu

  • Fly in the next 3 months: flights from London to Boston (BOS)

    Icelandair airfare from London to Boston - starting at GBP 391

    GBP

    London (LON)to

    Boston (BOS)
    11 11 2026 - 14 11 2026
    From
    GBP 391
    Viewed 15 hrs ago
    Round trip
    Economy

    London (LON)to

    Boston (BOS)
    11 11 2026 - 23 11 2026
    From
    GBP 391
    Viewed 15 hrs ago
    Round trip
    Economy

    London (LON)to

    Boston (BOS)
    11 11 2026 - 27 11 2026
    From
    GBP 391
    Viewed 15 hrs ago
    Round trip
    Economy

    London (LON)to

    Boston (BOS)
    11 11 2026 - 30 11 2026
    From
    GBP 391
    Viewed 15 hrs ago
    Round trip
    Economy

    London (LON)to

    Boston (BOS)
    11 11 2026 - 02 12 2026
    From
    GBP 391
    Viewed 15 hrs ago
    Round trip
    Economy
    *Fares displayed have been collected within the last 72 hours and may no longer be available at the time of booking. We display fares for Economy Light as standard, but it is possible to change your class of service during the booking process. You can also add baggage meals and extra legroom to your trip during booking.

    Flights from London (LON) to Boston (BOS) in the next 365 days

    Book ahead and find our best prices in 2026 and beyond

    GBP
    Flights from London (LON) to Boston (BOS) in the next 365 days
    From
    To
    Fare type
    Dates
    Price
    London (LON)Boston (BOS)Round trip
    /
    Economy
    11 11 2026 - 14 11 2026

    From

    GBP 391

    Viewed 15 hrs ago

    London (LON)Boston (BOS)Round trip
    /
    Economy
    11 11 2026 - 23 11 2026

    From

    GBP 391

    Viewed 15 hrs ago

    London (LON)Boston (BOS)Round trip
    /
    Economy
    11 11 2026 - 27 11 2026

    From

    GBP 391

    Viewed 15 hrs ago

    London (LON)Boston (BOS)Round trip
    /
    Economy
    11 11 2026 - 30 11 2026

    From

    GBP 391

    Viewed 15 hrs ago

    London (LON)Boston (BOS)Round trip
    /
    Economy
    11 11 2026 - 02 12 2026

    From

    GBP 391

    Viewed 15 hrs ago

    *Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

    Make the most of your trip

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    Flights from London to Boston with a touch of Iceland

    For the best fares and an unparalleled flying experience, choose Icelandair to fly from London (LHR/LGW) to Boston (BOS). Icelandair provides hundreds of hours of movies and music in the in-flight entertainment system, Wi-Fi access on most flights, and a USB power port at every seat to power up your laptop or smartphone. You'll enjoy an easy transit at our Keflavik hub and one of the shortest flying times over the Atlantic.

    A historic city

    Boston has a historical aura matched by few American cities. It is among the oldest cities in the country, having been founded by English Puritans in 1630. Events leading up to the American Revolution took place here in the 18th century, among them the rebellious disposal of a British tea shipment to the bottom of Boston Harbor.

    Notwithstanding its revolutionary past, today’s Boston is a peaceful place. For those who like to explore by foot, there are plenty of idyllic paths to choose from. Saunter through the well-kept grounds of Boston common, the oldest city park in the United States, and through narrow lamp-lit streets in the downtown area, populated with houses betraying the English origin of the city’s founders. Visitors who follow the designated Freedom Trail in downtown will pass some of the buildings and locations most relevant to the city’s history. Boston has since the 17th century been a seat of education and learning, as attested to by its wealth of bookstores and museums and by the presence of Harvard University.

    Cuisine and competition

    There are plenty of options when it comes to dining. Seafood features prominently on the traditional Bostonian menu. Have a taste of New England Clam Chowder at the Union Oyster House, the oldest restaurant in the United States. Or make your way to Boston’s Chinatown, where you will find a wide variety of Asian cuisine. In Boston, sport-enthusiasts are well-placed to experience the USA’s major competitive games. Visit the home of the renowned Boston Red Sox at Fenway Park. Or witness the Boston Celtics play the quintessential New England sport, basketball, at the TD Garden.

    Check out Icelandair’s flights from London to Boston and experience the City on a Hill first-hand.

    Add a stopover in Iceland to your journey

    If flying from London to Boston with Icelandair, why not stopover in Iceland? You could simply change planes and be in and out of the airport in under an hour, but you could also do a stopover on our island for anywhere from 1 to 7 days, at no additional airfare. You will have the opportunity to explore Iceland's natural wonders and enjoy the culture and charming boutiques of Reykjavik.

    Flying with Icelandair: more than just a journey