Cheapest return flights from San Diego to London in April from $644

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

Return flights

13 Apr - 27 Apr Frontier Airlines
01 Apr - 13 Apr Lufthansa
06 Apr - 13 Apr Frontier Airlines
08 Apr - 28 Apr Hawaiian Airlines
05 Apr - 27 Apr Hawaiian Airlines
22 Apr - 29 Apr Alaska Airlines
09 Apr - 01 May Frontier Airlines
20 Apr - 30 Apr Hawaiian Airlines
09 Apr - 29 Apr Frontier Airlines
23 Apr - 29 Apr Alaska Airlines
03 Apr - 10 Apr Hawaiian Airlines

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

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