AirHint found the following cheapest return flights from London (LHR) to Bucharest (OTP) in April 2026 (see full year).

Return flights

17 Apr - 19 Apr	Aegean Airlines
30 Apr - 03 May	British Airways	direct
16 Apr - 19 Apr	British Airways	direct
17 Apr - 19 Apr	British Airways	direct
20 Apr - 22 Apr	British Airways	direct
23 Apr - 26 Apr	British Airways	direct
04 Apr - 05 Apr	British Airways	direct
09 Apr - 11 Apr	British Airways
01 Apr - 03 Apr	British Airways	direct
10 Apr - 13 Apr	British Airways	direct
08 Apr - 10 Apr	British Airways

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

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 April from 139€

Return flights