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

Return flights

05 Dec - 12 Dec	Air Canada
11 Dec - 15 Dec	Air Canada
10 Dec - 24 Dec	Austrian Airlines
04 Dec - 27 Dec	Air Serbia
24 Dec - 07 Jan	LOT
24 Dec - 05 Jan	LOT
13 Dec - 27 Dec	Norse Atlantic Airways
21 Dec - 30 Dec	Air Serbia
21 Dec - 29 Dec	Air Serbia
22 Dec - 29 Dec	Icelandair
24 Dec - 04 Jan	HiSky Europe
26 Dec - 03 Jan	HiSky Europe
21 Dec - 05 Jan	Icelandair
23 Dec - 04 Jan	Air Serbia
23 Dec - 03 Jan	Air Serbia
20 Dec - 30 Dec	Air Serbia
20 Dec - 29 Dec	LOT
21 Dec - 04 Jan	Air Canada
21 Dec - 03 Jan	Icelandair
19 Dec - 04 Jan	HiSky Europe

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 $428

Return flights