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

Return flights

02 Dec - 10 Dec	Wizz Air
02 Dec - 04 Dec	Wizz Air
02 Dec - 06 Dec	Wizz Air
01 Dec - 16 Dec	Ryanair
03 Dec - 06 Dec	Wizz Air
06 Dec - 13 Dec	Ryanair
10 Dec - 13 Dec	Ryanair
01 Dec - 04 Dec	Ryanair
09 Dec - 13 Dec	Ryanair
16 Dec - 10 Jan	Wizz Air
01 Dec - 10 Dec	Ryanair
17 Dec - 09 Jan	Wizz Air
17 Dec - 11 Jan	Wizz Air
18 Dec - 10 Jan	Wizz Air
18 Dec - 07 Jan	Wizz Air
18 Dec - 06 Jan	Wizz Air
30 Dec - 01 Jan	Ryanair
19 Dec - 07 Jan	Ryanair
25 Dec - 01 Jan	Air Serbia
20 Dec - 05 Jan	Ryanair

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 103€

Return flights