Cheapest return flights from San Diego to London in December from $585

AirHint found the following cheapest return flights from San Diego (SAN) to London (LHR) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec British Airways
04 Dec - 10 Dec Scandinavian Airlines
03 Dec - 10 Dec KLM
08 Dec - 23 Dec KLM
11 Dec - 20 Jan British Airways direct
02 Dec - 09 Dec British Airways
09 Dec - 15 Dec British Airways
01 Dec - 08 Dec Air Canada
30 Dec - 12 Jan Lufthansa
06 Dec - 11 Dec Frontier Airlines
29 Dec - 12 Jan Air Canada
05 Dec - 08 Dec British Airways
04 Dec - 11 Dec British Airways
12 Dec - 20 Jan Delta
11 Dec - 10 Jan KLM
16 Dec - 10 Jan Frontier Airlines
15 Dec - 10 Jan Hawaiian Airlines
12 Dec - 07 Jan Frontier Airlines
24 Dec - 17 Jan Scandinavian Airlines
23 Dec - 09 Jan Air Canada

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

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