AirHint found the following cheapest return flights from San Jose (SJC) to London (LHR) in July 2026 (see full year).

Return flights

06 Jul - 31 Jul	British Airways
21 Jul - 30 Jul	Alaska Airlines
12 Jul - 21 Jul	British Airways
14 Jul - 25 Jul	British Airways
20 Jul - 28 Jul	Icelandair
05 Jul - 26 Jul	British Airways
07 Jul - 14 Jul	Icelandair
14 Jul - 23 Jul	Icelandair
18 Jul - 23 Jul	Alaska Airlines
01 Jul - 15 Jul	Icelandair
23 Jul - 03 Aug	British Airways
20 Jul - 01 Aug	Finnair
19 Jul - 03 Aug	Finnair
07 Jul - 01 Aug	Finnair

Also check the deals for one-way flights from San Jose to London in July.

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 Jose to London in July from $955

Return flights