AirHint found the following cheapest return flights from San Diego (SAN) to London (LHR) in January 2026 (see full year).

Return flights

10 Jan - 25 Jan	Lufthansa
07 Jan - 14 Jan	British Airways	direct
10 Jan - 25 Jan	British Airways	direct
26 Jan - 09 Feb	Delta
17 Jan - 24 Jan	British Airways
02 Jan - 09 Jan	British Airways	direct
12 Jan - 19 Jan	British Airways	direct
22 Jan - 29 Jan	British Airways

Also check the deals for one-way flights from San Diego to London in January.

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 January from 472€

Return flights