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

Return flights

03 Dec - 08 Dec	SWISS
08 Dec - 16 Dec	Finnair
02 Dec - 05 Dec	Austrian Airlines
04 Dec - 10 Dec	Austrian Airlines
01 Dec - 13 Dec	Lufthansa
02 Dec - 09 Dec	Austrian Airlines
04 Dec - 11 Dec	Austrian Airlines
05 Dec - 12 Dec	Lufthansa
06 Dec - 13 Dec	Lufthansa
01 Dec - 08 Dec	Lufthansa
29 Dec - 24 Jan	Finnair
28 Dec - 17 Jan	United
25 Dec - 17 Jan	Lufthansa
29 Dec - 06 Jan	Finnair
16 Dec - 10 Jan	Scandinavian Airlines
24 Dec - 17 Jan	TAP
27 Dec - 17 Jan	United
26 Dec - 17 Jan	TAP
17 Dec - 10 Jan	APG Distribution System
23 Dec - 17 Jan	Finnair

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 333€

Return flights