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

Return flights

12 Dec - 16 Dec	British Airways	direct
12 Dec - 17 Dec	Lufthansa
16 Dec - 06 Jan	Lufthansa
30 Dec - 06 Jan	Lufthansa
10 Dec - 17 Dec	Lufthansa
16 Dec - 31 Dec	Lufthansa
16 Dec - 01 Jan	Lufthansa
16 Dec - 06 Jan	British Airways	direct
16 Dec - 30 Dec	Lufthansa
16 Dec - 29 Dec	Lufthansa
16 Dec - 28 Dec	Lufthansa
29 Dec - 02 Jan	Lufthansa
16 Dec - 02 Jan	Lufthansa
17 Dec - 06 Jan	Lufthansa
17 Dec - 29 Dec	Lufthansa
17 Dec - 30 Dec	Lufthansa
04 Dec - 04 Dec	Lufthansa
22 Dec - 06 Jan	Lufthansa
11 Dec - 04 Jan	Lufthansa
11 Dec - 01 Jan	Lufthansa

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

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 December from 151€

Return flights