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

Return flights

24 Apr - 28 Apr	Vueling Airlines
01 Apr - 15 Apr	easyJet
29 Apr - 06 May	Vueling Airlines
24 Apr - 26 Apr	Vueling Airlines
28 Apr - 05 May	Ryanair
24 Apr - 29 Apr	Ryanair
29 Apr - 02 May	Ryanair
13 Apr - 19 Apr	Wizz Air
13 Apr - 16 Apr	Ryanair
03 Apr - 11 Apr	Iberia
07 Apr - 11 Apr	Ryanair
01 Apr - 08 Apr	easyJet
07 Apr - 18 Apr	Ryanair
30 Apr - 03 May	Iberia
22 Apr - 06 May	SKY express
22 Apr - 13 May	SKY express
26 Apr - 06 May	SKY express
26 Apr - 13 May	SKY express
29 Apr - 06 May	Bulgaria Air	direct
29 Apr - 13 May	SKY express

Also check the deals for one-way flights from Lisbon to Sofia in April.

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 April from $159

Return flights