Find Cheapest Airlines Flying from Boston to London

Choose from 1 airlines flying from Boston to London, including Virgin Atlantic, and . Virgin Atlantic currently offers the cheapest ticket on this route.

Find the cheapest direct flight options from Boston to London over the next three months. Book one-way tickets from CAD 278 and round-trip tickets from CAD 672.

Displayed flight fares from Boston to London are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Information for Boston to London Flights

The distance between Boston and London is 5,260.27km. It takes around 6 hours 31 minutes on average to fly from Boston to London. Based on Trip.com's data, travel demand peaks in January. The off-season for travel is October.

Cheapest one-way flight priceCAD 261
Cheapest return ticket priceCAD 537
Off-season travel monthOctober
Peak season for travelJanuary
Flight distance5,260.27km
Average flight time6 hours 31 minutes
Popular airlineVirgin Atlantic

When is the cheapest time to fly from Boston to London?

The cheapest time for Boston to London flights: Feb 1 to Feb 8 — one way flight prices from CAD 261.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
  • 18
  • 815
  • 1522
  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Boston to London, calculated over the upcoming 10 weeks.

Flight FAQs

  • Which airlines offer the cheapest flights from Boston (BOS) to London (LON)?

    Based on Trip.com data, Jetblue Airways offers one-way fares as low as CAD 261 on Cheapest nonstop routes (e.g. BOS to LHR on Sat, Feb 7), while Air Canada offers Cheapest nonstop round-trips from CAD 537 departing on Sun, Jan 25 and returning on Fri, Jan 30.
  • It takes about 6 hours 31 minutes to fly from Boston (BOS) to London (LON).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to London is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Boston to London, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Feb 7, with one-way flights priced at just CAD 261.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Virgin Atlantic.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for London travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to London is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Boston to London on December 12, 2025 with Iberia, with prices starting at CAD 611.
  • The time difference between London and Boston is 5h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.