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

Return flights

12 Dec - 21 Dec	Ryanair	direct
12 Dec - 22 Dec	Ryanair	direct
14 Dec - 21 Dec	Ryanair	direct
14 Dec - 22 Dec	Ryanair	direct
26 Dec - 09 Jan	Ryanair	direct
19 Dec - 21 Dec	Ryanair	direct
19 Dec - 09 Jan	Ryanair	direct
08 Dec - 21 Dec	Ryanair	direct
19 Dec - 22 Dec	Ryanair	direct
28 Dec - 09 Jan	Ryanair	direct
08 Dec - 22 Dec	Ryanair	direct
21 Dec - 09 Jan	Ryanair	direct
21 Dec - 22 Dec	Ryanair	direct
08 Dec - 12 Dec	Ryanair	direct

Also check the deals for one-way flights from Budapest 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 Budapest to Sofia in December from 70€

Return flights