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

Return flights

31 Aug - 13 Sep	Vueling Airlines
30 Aug - 06 Sep	British Airways
29 Aug - 05 Sep	Lufthansa
28 Aug - 04 Sep	Lufthansa
28 Aug - 06 Sep	Lufthansa
30 Aug - 13 Sep	British Airways
27 Aug - 06 Sep	Aegean Airlines
25 Aug - 06 Sep	Aegean Airlines
26 Aug - 06 Sep	Aegean Airlines
30 Aug - 04 Sep	Lufthansa
27 Aug - 28 Aug	Lufthansa
28 Aug - 28 Aug	Austrian Airlines
25 Aug - 28 Aug	SWISS
28 Aug - 29 Aug	Lufthansa
29 Aug - 30 Aug	Lufthansa
25 Aug - 29 Aug	Lufthansa
24 Aug - 29 Aug	Austrian Airlines
26 Aug - 30 Aug	Lufthansa
27 Aug - 27 Aug	Austrian Airlines
24 Aug - 28 Aug	Austrian Airlines

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

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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Cheapest return flights from London to Bucharest in August from $238

Return flights