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

Return flights

16 Jan - 19 Jan	Vueling Airlines
12 Jan - 16 Jan	Ryanair
17 Jan - 07 Feb	Vueling Airlines
30 Jan - 02 Feb	Ryanair
14 Jan - 21 Jan	Ryanair
23 Jan - 26 Jan	Ryanair
15 Jan - 18 Jan	Vueling Airlines
14 Jan - 19 Jan	Ryanair
12 Jan - 18 Jan	Wizz Air Malta
29 Jan - 01 Feb	Vueling Airlines
16 Jan - 18 Jan	Ryanair
14 Jan - 04 Feb	SKY express
25 Jan - 04 Feb	SKY express
11 Jan - 21 Jan	SKY express
11 Jan - 14 Jan	SKY express

Also check the deals for one-way flights from Lisbon 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 Lisbon to Sofia in January from 87€

Return flights