Cheapest return flights from San Diego to London in April from $631

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

Return flights

14 Apr - 22 Apr KLM
22 Apr - 29 Apr Air Canada
22 Apr - 27 Apr Air Canada
05 Apr - 29 Apr Air Canada
07 Apr - 21 Apr United
12 Apr - 21 Apr Delta
01 Apr - 08 Apr Virgin Atlantic
16 Apr - 29 Apr Lufthansa
01 Apr - 06 Apr Air Canada
16 Apr - 23 Apr Air Canada
20 Apr - 09 May Air Canada
22 Apr - 03 May Air Canada
29 Apr - 03 May United
29 Apr - 03 May British Airways direct
09 Apr - 01 May United
24 Apr - 02 May jetBlue
22 Apr - 03 May Finnair direct

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

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