Cheapest return flights from Porto to Sofia in September from 140€

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

Return flights

24 Sep - 06 Oct Volotea
26 Sep - 04 Oct Transavia France
17 Sep - 27 Sep Volotea
26 Sep - 30 Sep Ryanair
15 Sep - 16 Sep easyJet
25 Sep - 04 Oct Ryanair
17 Sep - 18 Sep Ryanair
16 Sep - 18 Sep Ryanair
21 Sep - 28 Sep Ryanair
23 Sep - 03 Oct Ryanair
15 Sep - 19 Sep Ryanair

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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