Cheapest return flights from London to Bucharest in September from $266

AirHint found the following cheapest return flights from London (LCY) to Bucharest (OTP) in September 2026 (see full year).

Return flights

22 Sep - 30 Sep KLM
29 Sep - 06 Oct KLM
22 Sep - 06 Oct KLM
02 Sep - 08 Sep SWISS
02 Sep - 09 Sep SWISS
01 Sep - 08 Sep SWISS
08 Sep - 15 Sep SWISS
15 Sep - 20 Oct SWISS
03 Sep - 09 Sep KLM
15 Sep - 18 Sep SWISS
15 Sep - 22 Oct SWISS
08 Sep - 11 Sep SWISS
14 Sep - 15 Sep Lufthansa
14 Sep - 16 Sep Lufthansa

Also check the deals for one-way flights from London to Bucharest in September.

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