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

Return flights

13 Dec - 17 Dec	Wizz Air
10 Dec - 13 Dec	Wizz Air
13 Dec - 20 Dec	Ryanair
03 Dec - 07 Dec	Wizz Air
10 Dec - 14 Dec	Wizz Air
13 Dec - 10 Jan	Ryanair
11 Dec - 16 Dec	Ryanair
05 Dec - 07 Dec	Wizz Air
15 Dec - 17 Jan	Ryanair
15 Dec - 06 Jan	Wizz Air
20 Dec - 27 Dec	Wizz Air
26 Dec - 30 Dec	Wizz Air
22 Dec - 02 Jan	Wizz Air
23 Dec - 07 Jan	Wizz Air
24 Dec - 02 Jan	Wizz Air
26 Dec - 02 Jan	Wizz Air
25 Dec - 03 Jan	Wizz Air
25 Dec - 02 Jan	Air Serbia
31 Dec - 03 Jan	Wizz Air

Also check the deals for one-way flights from Sofia to Lisbon 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 Sofia to Lisbon in December from 114€

Return flights