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

Return flights

24 Mar - 31 Mar	Lufthansa
17 Mar - 25 Mar	Lufthansa
01 Mar - 31 Mar	Lufthansa
04 Mar - 07 Mar	Lufthansa
02 Mar - 09 Mar	Frontier Airlines
23 Mar - 14 Apr	Hawaiian Airlines
22 Mar - 31 Mar	KLM
04 Mar - 08 Mar	Hawaiian Airlines
19 Mar - 02 Apr	Lufthansa
30 Mar - 22 Apr	Hawaiian Airlines
18 Mar - 25 Mar	Lufthansa
05 Mar - 08 Mar	Lufthansa
01 Mar - 13 Mar	Lufthansa
22 Mar - 03 Apr	Lufthansa
27 Mar - 10 Apr	Hawaiian Airlines
26 Mar - 01 Apr	Alaska Airlines
27 Mar - 05 Apr	Alaska Airlines
27 Mar - 04 Apr	Alaska Airlines
20 Mar - 03 Apr	Hawaiian Airlines

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 496€

Return flights