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

Return flights

08 Jan - 14 Jan	easyJet
13 Jan - 17 Jan	Ryanair
09 Jan - 14 Jan	easyJet
09 Jan - 12 Jan	easyJet
14 Jan - 19 Jan	Ryanair
24 Jan - 28 Jan	easyJet
22 Jan - 25 Jan	Ryanair
24 Jan - 29 Jan	Ryanair
29 Jan - 01 Feb	Vueling Airlines
30 Jan - 02 Feb	Vueling Airlines
30 Jan - 01 Feb	Vueling Airlines
28 Jan - 02 Feb	Ryanair
06 Jan - 15 Jan	Ryanair
17 Jan - 07 Feb	Vueling Airlines
05 Jan - 15 Jan	Ryanair
25 Jan - 04 Feb	SKY express
28 Jan - 04 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 $133

Return flights