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

Return flights

18 Dec - 22 Dec	Ryanair
19 Dec - 23 Dec	Ryanair
12 Dec - 14 Dec	Ryanair
10 Dec - 14 Dec	easyJet
31 Dec - 04 Jan	Ryanair
06 Dec - 13 Dec	Jet2
30 Dec - 13 Jan	Ryanair	direct
19 Dec - 09 Jan	Ryanair
06 Dec - 09 Dec	Jet2
06 Dec - 10 Dec	Jet2
19 Dec - 21 Dec	Ryanair
09 Dec - 12 Dec	Ryanair
30 Dec - 04 Jan	Air Europa
09 Dec - 11 Dec	Ryanair
30 Dec - 16 Jan	Ryanair	direct
30 Dec - 01 Jan	Air Europa
19 Dec - 06 Jan	Ryanair
30 Dec - 06 Jan	Air Europa
23 Dec - 02 Jan	Ryanair
26 Dec - 13 Jan	Ryanair	direct

Also check the deals for one-way flights from Alicante 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 Alicante to Sofia in December from 104€

Return flights