Cheapest return flights from Athens to Sofia in December from $78

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

Return flights

05 Dec - 07 Dec SKY express direct
12 Dec - 01 Jan SKY express direct
08 Dec - 21 Dec SKY express direct
11 Dec - 15 Dec Aegean Airlines direct
11 Dec - 21 Dec SKY express direct
12 Dec - 21 Dec SKY express direct
05 Dec - 21 Dec SKY express direct
18 Dec - 01 Jan SKY express direct
05 Dec - 10 Dec SKY express direct
08 Dec - 11 Dec SKY express direct
08 Dec - 10 Dec SKY express direct
05 Dec - 11 Dec SKY express direct
18 Dec - 04 Jan SKY express direct
18 Dec - 05 Jan SKY express direct
22 Dec - 08 Jan SKY express direct
22 Dec - 11 Jan SKY express direct
24 Dec - 08 Jan SKY express direct
24 Dec - 11 Jan SKY express direct
18 Dec - 07 Jan SKY express direct
26 Dec - 08 Jan SKY express direct

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

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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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