AirHint found the following cheapest return flights from San Diego (SAN) to Frankfurt (FRA) in September 2026 (see full year).
Return flights
| 17 Sep - 24 Sep | Condor | ||
| 01 Sep - 14 Sep | Condor | ||
| 30 Sep - 14 Oct | Condor | ||
| 27 Sep - 11 Oct | Condor |
Also check the deals for one-way flights from San Diego to Frankfurt in September.
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