Cheapest return flights from Lisbon to Sofia in September from $150

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

Return flights

16 Sep - 08 Oct Ryanair
15 Sep - 08 Oct Ryanair
28 Sep - 07 Oct Air Europa
29 Sep - 08 Oct Vueling Airlines
18 Sep - 25 Sep Iberia
23 Sep - 26 Sep Ryanair
10 Sep - 20 Oct TAP
16 Sep - 19 Sep Vueling Airlines
14 Sep - 07 Oct easyJet
14 Sep - 16 Sep Ryanair
30 Sep - 21 Oct SKY express
02 Sep - 16 Sep SKY express

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

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