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

Return flights

06 Dec - 08 Dec	Ryanair
06 Dec - 07 Dec	Ryanair
06 Dec - 10 Dec	Ryanair
06 Dec - 14 Dec	Ryanair
03 Dec - 17 Dec	easyJet
13 Dec - 14 Dec	Ryanair
03 Dec - 07 Dec	Ryanair
10 Dec - 17 Dec	easyJet
12 Dec - 15 Dec	transavia
01 Dec - 17 Dec	easyJet
31 Dec - 07 Jan	easyJet
01 Dec - 01 Jan	easyJet
06 Dec - 06 Jan	Ryanair
29 Dec - 07 Jan	Air Serbia
13 Dec - 07 Jan	Ryanair
17 Dec - 13 Jan	transavia
16 Dec - 11 Jan	LOT
30 Dec - 07 Jan	LOT
17 Dec - 01 Jan	Air Serbia
25 Dec - 01 Jan	Air Serbia

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to Sofia in December from $162

Return flights