Cheapest return flights from London to Boston in June from $702

AirHint found the following cheapest return flights from London (LCY) to Boston (BOS) in June 2026 (see full year).

Return flights

30 Jun - 09 Jul Lufthansa
17 Jun - 07 Jul SWISS
30 Jun - 07 Jul Lufthansa
23 Jun - 29 Jun Lufthansa
26 Jun - 08 Jul Lufthansa
01 Jun - 30 Jun Lufthansa
23 Jun - 30 Jun Lufthansa
11 Jun - 15 Jun SWISS
04 Jun - 23 Jun SWISS
10 Jun - 18 Jun SWISS
12 Jun - 16 Jun SWISS
10 Jun - 22 Jun SWISS
10 Jun - 15 Jun SWISS
17 Jun - 24 Jun SWISS
26 Jun - 06 Jul Lufthansa
30 Jun - 12 Jul SWISS
26 Jun - 03 Jul Lufthansa
29 Jun - 01 Jul Delta
29 Jun - 11 Jul KLM

Also check the deals for one-way flights from London to Boston in June.

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