Cheapest return flights from Sofia to Helsinki in September from 167€

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

Return flights

22 Sep - 29 Sep Wizz Air
20 Sep - 24 Sep Wizz Air
16 Sep - 20 Sep airBaltic
05 Sep - 09 Sep Ryanair
29 Sep - 03 Oct Ryanair
07 Sep - 11 Sep Ryanair
10 Sep - 20 Sep Wizz Air
18 Sep - 22 Sep Lufthansa
03 Sep - 06 Sep Lufthansa

Also check the deals for one-way flights from Sofia to Helsinki 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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