AirHint found the following cheapest return flights from Milan (LIN) to Sofia (SOF) in December 2025 (see full year).

Return flights

12 Dec - 16 Dec	Lufthansa
04 Dec - 11 Dec	Lufthansa
12 Dec - 14 Dec	Lufthansa
05 Dec - 08 Dec	Lufthansa
06 Dec - 08 Dec	Lufthansa
01 Dec - 06 Dec	ITA Airways
30 Dec - 03 Jan	Austrian Airlines
31 Dec - 03 Jan	Austrian Airlines
18 Dec - 19 Dec	easyJet
30 Dec - 02 Jan	ITA Airways
22 Dec - 24 Dec	Lufthansa

Also check the deals for one-way flights from Milan 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 Milan to Sofia in December from $223

Return flights