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

Return flights

15 Apr - 19 Apr	SWISS
14 Apr - 17 Apr	SWISS
10 Apr - 13 Apr	SWISS
26 Apr - 08 May	ITA Airways
23 Apr - 26 Apr	ITA Airways
03 Apr - 07 Apr	SWISS
03 Apr - 08 Apr	SWISS
16 Apr - 20 Apr	Lufthansa
16 Apr - 19 Apr	Lufthansa
18 Apr - 22 Apr	ITA Airways
13 Apr - 17 Apr	Lufthansa
30 Apr - 04 May	ITA Airways

Also check the deals for one-way flights from London to Sofia 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 Sofia in April from 208€

Return flights