Cheapest return flights from London to Bucharest in September from 135€

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

Return flights

01 Sep - 04 Sep British Airways
20 Sep - 09 Oct British Airways direct
27 Sep - 30 Sep British Airways direct
25 Sep - 04 Oct British Airways
24 Sep - 04 Oct British Airways
29 Sep - 04 Oct British Airways
24 Sep - 27 Sep British Airways direct
25 Sep - 27 Sep British Airways direct
25 Sep - 04 Oct British Airways direct
29 Sep - 04 Oct British Airways direct
09 Sep - 23 Sep Vueling Airlines
23 Sep - 25 Oct British Airways direct
01 Sep - 09 Sep British Airways
30 Sep - 01 Oct British Airways
27 Sep - 06 Oct British Airways
29 Sep - 06 Oct British Airways
17 Sep - 20 Sep Air Serbia
01 Sep - 18 Sep Austrian Airlines
02 Sep - 18 Sep Austrian Airlines
23 Sep - 27 Sep 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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