Cheapest return flights from London to Bucharest in September from $181

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

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

Return flights

24 Sep - 27 Sep British Airways
23 Sep - 27 Sep British Airways
16 Sep - 20 Sep British Airways
24 Sep - 01 Oct British Airways direct
13 Sep - 20 Sep British Airways
20 Sep - 27 Sep British Airways
14 Sep - 20 Sep British Airways
21 Sep - 27 Sep British Airways
10 Sep - 01 Oct British Airways direct
24 Sep - 29 Sep British Airways direct
27 Sep - 01 Oct British Airways direct
23 Sep - 30 Sep British Airways direct
22 Sep - 29 Sep British Airways direct
14 Sep - 06 Oct British Airways direct
25 Sep - 02 Oct British Airways direct
28 Sep - 02 Oct British Airways direct
26 Sep - 03 Oct Lufthansa
26 Sep - 03 Oct British Airways direct

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

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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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