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

Return flights

08 Dec - 16 Dec	Finnair
08 Dec - 08 Jan	Icelandair
03 Dec - 08 Dec	Lufthansa
31 Dec - 11 Jan	SWISS
31 Dec - 24 Jan	SWISS
10 Dec - 14 Dec	Finnair
10 Dec - 17 Dec	Icelandair
10 Dec - 15 Dec	TAP
06 Dec - 08 Dec	Lufthansa
13 Dec - 17 Dec	Icelandair
12 Dec - 16 Dec	TAP
04 Dec - 27 Dec	Finnair
14 Dec - 19 Dec	American Airlines
22 Dec - 12 Jan	TAP
22 Dec - 17 Jan	TAP
23 Dec - 17 Jan	jetBlue
17 Dec - 06 Jan	Norse Atlantic Airways
22 Dec - 10 Jan	TAP
22 Dec - 09 Jan	TAP
26 Dec - 05 Jan	TAP

Also check the deals for one-way flights from New York to Oslo 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 Oslo in December from $382

Return flights