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

Return flights

10 Jun - 18 Jun	SWISS
04 Jun - 08 Jun	SWISS
01 Jun - 07 Jun	SWISS
11 Jun - 15 Jun	SWISS
10 Jun - 15 Jun	SWISS
02 Jun - 14 Jun	SWISS
08 Jun - 14 Jun	SWISS
01 Jun - 05 Jun	Icelandair
13 Jun - 20 Jun	TAP
09 Jun - 19 Jun	Icelandair
23 Jun - 05 Jul	Air Canada
29 Jun - 06 Jul	Air Canada
22 Jun - 08 Jul	Air Canada
23 Jun - 09 Jul	Brussels Airlines
23 Jun - 13 Jul	Brussels Airlines
24 Jun - 05 Jul	Lufthansa
24 Jun - 02 Jul	Lufthansa
30 Jun - 21 Jul	TAP
24 Jun - 01 Jul	Icelandair
24 Jun - 20 Jul	Lufthansa

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Boston to London in June from $676

Return flights