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

Return flights

09 Jun - 15 Jun	WestJet
01 Jun - 16 Jun	WestJet
01 Jun - 15 Jun	TAP
04 Jun - 18 Jun	TAP
06 Jun - 19 Jun	Alaska Airlines
15 Jun - 19 Jun	TAP
08 Jun - 19 Jun	TAP
02 Jun - 30 Jun	Air France
03 Jun - 17 Jun	SWISS
06 Jun - 20 Jun	TAP
16 Jun - 23 Jul	Air France
23 Jun - 09 Jul	LEVEL
25 Jun - 15 Jul	Alaska Airlines
21 Jun - 09 Jul	Alaska Airlines
20 Jun - 11 Jul	Alaska Airlines
19 Jun - 09 Jul	Alaska Airlines
24 Jun - 09 Jul	Alaska Airlines
25 Jun - 14 Jul	SWISS

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

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Cheapest return flights from San Francisco to London in June from 666€

Return flights