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

Return flights

10 Dec - 17 Dec	Scandinavian Airlines
10 Dec - 16 Dec	Ryanair
07 Dec - 10 Dec	Air Serbia
08 Dec - 12 Dec	Wizz Air
13 Dec - 06 Jan	Ryanair
06 Dec - 09 Dec	Air Serbia
19 Dec - 22 Dec	Ryanair
22 Dec - 06 Jan	Ryanair
21 Dec - 05 Jan	Ryanair
21 Dec - 03 Jan	Ryanair
20 Dec - 03 Jan	Ryanair
27 Dec - 03 Jan	Ryanair

Also check the deals for one-way flights from Stockholm to Sofia 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 Stockholm to Sofia in December from 121€

Return flights