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

Return flights

15 Mar - 20 Mar	SWISS
09 Mar - 12 Mar	Lufthansa
13 Mar - 19 Mar	Lufthansa
06 Mar - 13 Mar	Lufthansa
09 Mar - 13 Mar	Lufthansa
04 Mar - 09 Mar	Lufthansa
05 Mar - 10 Mar	Lufthansa
06 Mar - 11 Mar	Lufthansa
13 Mar - 18 Mar	Lufthansa
20 Mar - 25 Mar	Lufthansa
31 Mar - 10 Apr	SWISS
26 Mar - 01 Apr	Lufthansa
28 Mar - 13 Apr	ITA Airways
07 Mar - 01 Apr	SWISS
29 Mar - 03 Apr	SWISS
27 Mar - 01 Apr	SWISS
28 Mar - 01 Apr	ITA Airways
27 Mar - 13 Apr	Lufthansa
27 Mar - 12 Apr	Lufthansa
31 Mar - 04 Apr	KLM

Also check the deals for one-way flights from London to Sofia 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 Sofia in March from 220€

Return flights