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

Return flights

02 Dec - 07 Dec	easyJet
04 Dec - 13 Dec	Vueling Airlines
05 Dec - 07 Dec	easyJet
19 Dec - 26 Dec	transavia
27 Dec - 17 Jan	easyJet
22 Dec - 30 Dec	Air Serbia
24 Dec - 30 Dec	Air Serbia
24 Dec - 05 Jan	Air Serbia
18 Dec - 20 Jan	easyJet
19 Dec - 29 Dec	transavia
19 Dec - 11 Jan	transavia
17 Dec - 13 Jan	Vueling Airlines
13 Dec - 01 Jan	easyJet
16 Dec - 02 Jan	Air Serbia
21 Dec - 04 Jan	Air Serbia
26 Dec - 03 Jan	Air Serbia
21 Dec - 02 Jan	Air Serbia
23 Dec - 26 Dec	easyJet
20 Dec - 26 Dec	easyJet
23 Dec - 30 Dec	easyJet

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 675PLN

Return flights