AirHint found the following cheapest return flights from San Diego (SAN) to London (LHR) in July 2025 (see full year).

Return flights

30 Jul - 06 Aug	British Airways	direct
30 Jul - 08 Aug	British Airways	direct
22 Jul - 30 Jul	Spirit Airlines
16 Jul - 29 Jul	jetBlue
26 Jul - 02 Aug	jetBlue
16 Jul - 27 Jul	jetBlue
30 Jul - 05 Aug	jetBlue
18 Jul - 02 Aug	jetBlue
17 Jul - 02 Aug	jetBlue
24 Jul - 03 Aug	jetBlue
22 Jul - 26 Jul	jetBlue
28 Jul - 04 Aug	British Airways
11 Jul - 26 Jul	jetBlue
15 Jul - 21 Jul	Hawaiian Airlines
10 Jul - 17 Jul	jetBlue
09 Jul - 16 Jul	jetBlue
15 Jul - 18 Jul	Scandinavian Airlines
14 Jul - 17 Jul	Hawaiian Airlines

Also check the deals for one-way flights from San Diego 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 Diego to London in July from $787

Return flights