Cheapest return flights from Porto to Sofia in September from 126€

AirHint found the following cheapest return flights from Porto (OPO) to Sofia (SOF) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep Vueling Airlines
25 Sep - 06 Oct easyJet
12 Sep - 15 Sep Volotea
10 Sep - 15 Sep Volotea
25 Sep - 29 Sep easyJet
26 Sep - 06 Oct Ryanair
25 Sep - 04 Oct Ryanair
12 Sep - 16 Sep Volotea
26 Sep - 29 Sep Volotea
25 Sep - 05 Oct easyJet
11 Sep - 16 Sep easyJet
11 Sep - 20 Sep easyJet
11 Sep - 14 Sep easyJet
08 Sep - 15 Sep Volotea

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

Skyscanner

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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