AirHint found the following cheapest return flights from London (LCY) to Cluj-napoca (CLJ) in September 2026 (see full year).
Return flights
| 18 Sep - 29 Sep | ITA Airways | ||
| 05 Sep - 10 Sep | SWISS | ||
| 11 Sep - 13 Sep | Aer Lingus | ||
| 04 Sep - 06 Sep | Aer Lingus | ||
| 06 Sep - 09 Sep | SWISS |
Also check the deals for one-way flights from London to Cluj-napoca in September.
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