Cheapest one-way flights from Helsinki to Sofia in September from 92€

Best time to book flights for Helsinki (HEL) to Sofia (SOF) flights at AirHint

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

One-Way flights

24 Sep airBaltic

Also check the deals for return flights from Helsinki 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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