Cheapest return flights from Athens to Sofia in December from $88

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

AirHint found the following cheapest return flights from Athens (ATH) to Sofia (SOF) in December 2025 (see full year).

Return flights

04 Dec - 07 Dec SKY express direct
10 Dec - 14 Dec SKY express direct
28 Dec - 07 Jan SKY express direct
24 Dec - 07 Jan SKY express direct
06 Dec - 09 Dec Aegean Airlines direct
24 Dec - 28 Dec SKY express direct
17 Dec - 28 Dec SKY express direct
26 Dec - 06 Jan Bulgaria Air direct

Also check the deals for one-way flights from Athens to Sofia in December.

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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