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

Return flights

11 Dec - 12 Dec	SKY express	direct
22 Dec - 31 Dec	SKY express
05 Dec - 13 Dec	SKY express
05 Dec - 10 Dec	SKY express	direct
12 Dec - 08 Jan	Ryanair
09 Dec - 10 Dec	Bulgaria Air
08 Dec - 15 Dec	Ryanair
19 Dec - 09 Jan	SKY express	direct
11 Dec - 14 Dec	Wizz Air
09 Dec - 16 Dec	Aegean Airlines
10 Dec - 14 Dec	Ryanair
10 Dec - 13 Dec	Ryanair
18 Dec - 06 Jan	Wizz Air
18 Dec - 07 Jan	Ryanair
19 Dec - 08 Jan	SKY express	direct
31 Dec - 19 Jan	SKY express	direct
31 Dec - 08 Jan	Ryanair
18 Dec - 05 Jan	Ryanair
31 Dec - 07 Jan	Ryanair
19 Dec - 07 Jan	SKY express	direct

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

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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Cheapest return flights from Sofia to Athens in December from 121€

Return flights