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

Return flights

11 May - 15 May	British Airways	direct
08 May - 10 May	British Airways	direct
04 May - 08 May	British Airways	direct
29 May - 01 Jun	British Airways
22 May - 25 May	SWISS
23 May - 30 May	Austrian Airlines
23 May - 31 May	Austrian Airlines
18 May - 22 May	Lufthansa
22 May - 25 May	British Airways	direct

Also check the deals for one-way flights from London to Sofia in May.

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 May from 177€

Return flights