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

Return flights

05 Mar - 09 Mar	Lufthansa
05 Mar - 10 Mar	Lufthansa
17 Mar - 25 Mar	Lufthansa
18 Mar - 30 Mar	Lufthansa
01 Mar - 31 Mar	Lufthansa
07 Mar - 31 Mar	Hawaiian Airlines
10 Mar - 18 Mar	Lufthansa
11 Mar - 22 Mar	Lufthansa
28 Mar - 21 Apr	Frontier Airlines
04 Mar - 14 Mar	Lufthansa
18 Mar - 25 Mar	Lufthansa
28 Mar - 05 Apr	Frontier Airlines
27 Mar - 05 Apr	Frontier Airlines
22 Mar - 04 Apr	Frontier Airlines
31 Mar - 10 Apr	Hawaiian Airlines
27 Mar - 30 Apr	Hawaiian Airlines
27 Mar - 04 Apr	Air Canada
27 Mar - 08 Apr	Air Canada
26 Mar - 08 Apr	Lufthansa
27 Mar - 10 Apr	jetBlue

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

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 March from $515

Return flights