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

Return flights

10 Dec - 17 Dec	Scandinavian Airlines
13 Dec - 10 Jan	Icelandair
12 Dec - 24 Dec	Scandinavian Airlines
24 Dec - 31 Dec	Scandinavian Airlines	direct
10 Dec - 17 Dec	Scandinavian Airlines	direct
12 Dec - 24 Dec	Scandinavian Airlines	direct
08 Dec - 14 Dec	Scandinavian Airlines	direct

Also check the deals for one-way flights from Newark 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 Newark to Oslo in December from $378

Return flights