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

Return flights

27 Jan - 03 Feb	Ryanair
22 Jan - 26 Jan	Ryanair
29 Jan - 02 Feb	Ryanair
14 Jan - 19 Jan	Ryanair
12 Jan - 19 Jan	Ryanair
22 Jan - 28 Jan	Ryanair
16 Jan - 19 Jan	Ryanair
12 Jan - 17 Jan	Ryanair
19 Jan - 21 Jan	Ryanair
21 Jan - 28 Jan	Ryanair
11 Jan - 14 Jan	Ryanair
17 Jan - 25 Jan	Ryanair
28 Jan - 02 Feb	Ryanair
31 Jan - 06 Feb	Ryanair
17 Jan - 07 Feb	Ryanair
31 Jan - 07 Feb	Ryanair
16 Jan - 07 Feb	Ryanair
30 Jan - 01 Feb	Ryanair
25 Jan - 04 Feb	SKY express
25 Jan - 11 Feb	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 $99

Return flights