Cheapest return flights from San Diego to London in April from $770

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

Return flights

22 Apr - 29 Apr Alaska Airlines
30 Apr - 07 May Alaska Airlines
20 Apr - 04 May Alaska Airlines
09 Apr - 29 Apr Frontier Airlines
02 Apr - 12 Apr Alaska Airlines
29 Apr - 06 May Icelandair
03 Apr - 13 Apr Hawaiian Airlines
23 Apr - 29 Apr Alaska Airlines
06 Apr - 13 Apr Icelandair
10 Apr - 17 Apr jetBlue
07 Apr - 21 Apr Icelandair

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

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