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

Return flights

18 Mar - 31 Mar	KLM
06 Mar - 27 Mar	KLM
06 Mar - 20 Mar	KLM
03 Mar - 15 Mar	KLM
07 Mar - 20 Mar	KLM
12 Mar - 25 Mar	KLM
03 Mar - 08 Mar	KLM
04 Mar - 09 Mar	KLM
05 Mar - 10 Mar	KLM
07 Mar - 14 Mar	KLM
26 Mar - 01 Apr	SWISS
23 Mar - 03 Apr	KLM
25 Mar - 03 Apr	KLM
25 Mar - 12 Apr	SWISS
30 Mar - 09 Apr	SWISS
30 Mar - 08 Apr	SWISS
31 Mar - 01 Apr	SWISS
17 Mar - 14 Apr	SWISS
27 Mar - 01 Apr	SWISS
26 Mar - 03 Apr	SWISS

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

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 March from 186€

Return flights