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

Return flights

21 Apr - 28 Apr	SWISS
28 Apr - 05 May	SWISS
22 Apr - 29 Apr	SWISS
29 Apr - 04 May	SWISS
08 Apr - 13 Apr	SWISS
03 Apr - 08 Apr	SWISS
03 Apr - 15 Apr	SWISS
22 Apr - 24 Apr	SWISS
24 Apr - 29 Apr	SWISS
05 Apr - 15 Apr	SWISS
16 Apr - 23 Apr	Lufthansa
15 Apr - 17 Apr	SWISS
30 Apr - 05 May	Lufthansa
30 Apr - 04 May	Lufthansa
28 Apr - 03 May	ITA Airways
28 Apr - 01 May	SWISS
25 Apr - 10 May	ITA Airways
18 Apr - 03 May	ITA Airways
26 Apr - 03 May	ITA Airways
29 Apr - 02 May	KLM

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 195€

Return flights