AirHint found the following cheapest return flights from San Diego (SAN) to London (LGW) in September 2026 (see full year).
Return flights
| 20 Sep - 29 Sep | Lufthansa | ||
| 19 Sep - 13 Oct | SWISS | ||
| 13 Sep - 02 Oct | Lufthansa | ||
| 13 Sep - 25 Sep | Icelandair |
Also check the deals for one-way flights from San Diego to London in September.
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