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

Return flights

31 Dec - 14 Jan	Austrian Airlines
30 Dec - 14 Jan	British Airways
30 Dec - 26 Jan	British Airways
01 Dec - 15 Dec	Lufthansa
30 Dec - 24 Jan	British Airways
25 Dec - 14 Jan	Air Serbia
25 Dec - 01 Jan	Air Serbia
29 Dec - 19 Jan	Lufthansa
25 Dec - 31 Dec	Air Serbia
09 Dec - 23 Dec	LEVEL
26 Dec - 22 Jan	KLM
28 Dec - 24 Jan	Air Serbia
15 Dec - 31 Jan	KLM
01 Dec - 27 Dec	Norse Atlantic Airways
24 Dec - 31 Dec	LOT
26 Dec - 31 Dec	LOT
22 Dec - 29 Dec	Neos Air
23 Dec - 31 Dec	Aer Lingus

Also check the deals for one-way flights from New York 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 New York to Sofia in December from 307€

Return flights