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

Return flights

11 Jun - 16 Jun	SWISS
04 Jun - 09 Jun	SWISS
02 Jun - 16 Jun	SWISS
16 Jun - 30 Jun	SWISS
15 Jun - 01 Jul	SWISS
24 Jun - 08 Jul	SWISS
17 Jun - 24 Jun	SWISS
10 Jun - 30 Jun	SWISS
18 Jun - 02 Jul	SWISS
11 Jun - 23 Jun	SWISS
12 Jun - 20 Jun	SWISS
02 Jun - 15 Jun	SWISS
16 Jun - 23 Jun	SWISS
03 Jun - 09 Jul	SWISS
22 Jun - 13 Jul	Air Canada
22 Jun - 05 Jul	Air Canada
26 Jun - 12 Jul	Air Canada
21 Jun - 04 Jul	Air Canada
26 Jun - 10 Jul	Air Canada
25 Jun - 05 Jul	Air Canada

Also check the deals for one-way flights from London to San Francisco 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.

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Cheapest return flights from London to San Francisco in June from 501€

Return flights