฿10,675 Cheap Finnair flights from Boston to London (BOS→LON)

View ฿10,675 flight on Thu, 22 Oct 2026Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Finnair flights from Boston to London (BOS→LON)

Prices were available within the past 7 days and start at ฿10,675 for one-way flights and ฿22,985 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Wed, 11 Feb - Mon, 16 Feb
BOS
Boston
LHR
London
฿22,985 Return, found 4 days ago
฿22,985
Return
found 4 days ago
Select Finnair flight, departing Wed, 11 Feb from Boston to London, returning Mon, 16 Feb, priced at ฿22,985 found 4 days ago

Find the cheapest month to fly from Boston (BOS) to London (LON)

February is typically the cheapest month to fly

From ฿11,222 - ฿18,083 per traveller.
Flight from Boston to London route information
Origin airport
Logan Intl.
Destination airport
Heathrow
Distance
5210 km
*Available to Expedia members.