Cheapest return flights from London to Bucharest in September from $256

Best time to book flights for London (LCY) to Bucharest (OTP) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to Bucharest (OTP) in September 2025 (see full year).

Return flights

22 Sep - 26 Sep KLM
25 Sep - 30 Sep KLM
01 Sep - 30 Sep Lufthansa
17 Sep - 30 Sep Lufthansa
17 Sep - 22 Sep Lufthansa
22 Sep - 24 Sep Lufthansa
03 Sep - 04 Sep Lufthansa
01 Sep - 04 Sep Lufthansa
18 Sep - 29 Sep Lufthansa
18 Sep - 24 Sep Lufthansa
16 Sep - 15 Oct Lufthansa
25 Sep - 01 Oct Lufthansa
26 Sep - 07 Oct KLM
26 Sep - 02 Oct KLM
26 Sep - 01 Oct SWISS
26 Sep - 04 Oct KLM
25 Sep - 04 Oct KLM
29 Sep - 09 Oct Lufthansa
26 Sep - 11 Oct KLM
14 Sep - 07 Oct KLM

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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