Cheapest one-way flights from Athens to Sofia in September from $64

Best time to book flights for Athens (ATH) to Sofia (SOF) flights at AirHint

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

One-Way flights

24 Sep Aegean Airlines direct
26 Sep SKY express direct

Also check the deals for return flights from Athens 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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