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

Return flights

05 Dec - 08 Dec	airBaltic	direct
11 Dec - 15 Dec	Ryanair
22 Dec - 26 Dec	airBaltic	direct
23 Dec - 28 Dec	LOT
24 Dec - 28 Dec	Wizz Air
29 Dec - 02 Jan	Lufthansa
30 Dec - 03 Jan	Austrian Airlines
29 Dec - 02 Jan	airBaltic	direct

Also check the deals for one-way flights from Sofia to Riga 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 Riga in December from 139€

Return flights