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

Return flights

06 Dec - 24 Jan	Ryanair
12 Dec - 15 Dec	easyJet
01 Dec - 03 Dec	easyJet
11 Dec - 14 Dec	easyJet
17 Dec - 22 Dec	easyJet
04 Dec - 08 Dec	easyJet
13 Dec - 31 Jan	easyJet
16 Dec - 11 Jan	easyJet
13 Dec - 31 Dec	easyJet
30 Dec - 02 Jan	easyJet
23 Dec - 30 Dec	easyJet
16 Dec - 05 Jan	easyJet
22 Dec - 31 Dec	Air Serbia
25 Dec - 07 Jan	Air Serbia
19 Dec - 22 Dec	easyJet
23 Dec - 28 Dec	easyJet
18 Dec - 05 Jan	easyJet
20 Dec - 31 Jan	easyJet
19 Dec - 02 Jan	Air Serbia
23 Dec - 05 Jan	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 146€

Return flights