Cheapest return flights from Boston to London in June from 548€

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

Return flights

09 Jun - 16 Jun Air Canada
12 Jun - 19 Jun Air Canada
12 Jun - 20 Jun Air Canada
10 Jun - 17 Jun Lufthansa
11 Jun - 14 Jun Air Canada
05 Jun - 12 Jun United
10 Jun - 14 Jun Iberia
15 Jun - 19 Jun Air Canada
11 Jun - 26 Jun Air Canada
01 Jun - 30 Jun Air Canada
22 Jun - 01 Jul Air Canada
30 Jun - 07 Jul Air Canada
27 Jun - 04 Jul Air Canada
17 Jun - 20 Jul United
11 Jun - 27 Jul Air France direct
27 Jun - 15 Jul Air Canada
28 Jun - 15 Jul Air Canada
25 Jun - 04 Jul Air Canada
26 Jun - 04 Jul Air Canada
25 Jun - 02 Jul Air Canada

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

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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.

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