Earn point on your loyalty program!arrow arc left

Cheap flights from London (LCY) to Boston (BOS)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from London (LCY) to Boston (BOS)

How to find the cheapest flight from London (LCY) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from London to Boston in April , May 2025

30 Apr - 06 May $ 556.00
LCY
London
Swiss International Air Lines
1 STOPS
BOS
Boston
BOS
Boston
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates
23 Apr - 05 May $ 1,386.00
LCY
London
ITA Airways
1 STOPS
BOS
Boston
BOS
Boston
ITA Airways
1 STOPS
LCY
London
Pick dates
20 Apr - 03 May $ 3,727.00
LCY
London
Aer Lingus
1 STOPS
BOS
Boston
BOS
Boston
Aer Lingus
1 STOPS
LCY
London
Pick dates

Last minute flights from London to Boston

22 Apr - 01 May $ 551.00
LCY
London
Swiss International Air Lines
1 STOPS
BOS
Boston
BOS
Boston
Swiss International Air Lines
2 STOPS
LCY
London
Pick dates
22 Apr - 01 May $ 592.00
LCY
London
KLM Royal Dutch Airlines
1 STOPS
BOS
Boston
BOS
Boston
KLM Royal Dutch Airlines
1 STOPS
LCY
London
Pick dates
20 Apr - 01 May $ 1,383.00
LCY
London
KLM Royal Dutch Airlines
1 STOPS
BOS
Boston
BOS
Boston
KLM Royal Dutch Airlines
1 STOPS
LCY
London
Pick dates

One-way flights to Boston from London

6:45 AM - 3:45 PM
Play
2 Stops
16h 5m
LCY - BOS
$ 529
Kiwi
Pick dates
6:45 AM - 12:40 PM
Aer Lingus
1 Stops
12h 55m
LCY - BOS
$ 973
Kiwi
Pick dates
1:45 PM - 4:55 PM
KLM Royal Dutch Airlines
1 Stops
9h 35m
LCY - BOS
$ 2,703
Kiwi
Pick dates

How to find the cheapest flight from London (LCY) to Boston (BOS)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.