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

Return flights

16 Jul - 21 Jul	SWISS
15 Jul - 18 Jul	Lufthansa
15 Jul - 29 Jul	Lufthansa
15 Jul - 17 Jul	Lufthansa
15 Jul - 23 Jul	Lufthansa
15 Jul - 22 Jul	Lufthansa
15 Jul - 19 Jul	Lufthansa
15 Jul - 21 Jul	Lufthansa
16 Jul - 23 Jul	SWISS
16 Jul - 17 Jul	SWISS
23 Jul - 06 Aug	SWISS
31 Jul - 05 Aug	British Airways	direct
29 Jul - 05 Aug	British Airways	direct
31 Jul - 09 Aug	British Airways
29 Jul - 02 Aug	British Airways
26 Jul - 09 Aug	British Airways
26 Jul - 02 Aug	British Airways
29 Jul - 01 Aug	British Airways
31 Jul - 02 Aug	British Airways
23 Jul - 08 Aug	SWISS

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

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 July from $262

Return flights