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

Return flights

28 Jan - 02 Feb	British Airways	direct
14 Jan - 21 Jan	British Airways	direct
24 Jan - 28 Jan	British Airways	direct
22 Jan - 26 Jan	British Airways
25 Jan - 29 Jan	British Airways
25 Jan - 30 Jan	British Airways
31 Jan - 07 Feb	British Airways
24 Jan - 31 Jan	British Airways
24 Jan - 29 Jan	British Airways
28 Jan - 01 Feb	British Airways	direct
22 Jan - 28 Jan	British Airways
08 Jan - 12 Jan	Lufthansa
23 Jan - 27 Jan	Lufthansa
27 Jan - 01 Feb	Lufthansa

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

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 January from $173

Return flights