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

Return flights

16 Jul - 29 Jul	Icelandair
14 Jul - 24 Jul	Icelandair
23 Jul - 30 Jul	KLM
09 Jul - 23 Jul	Icelandair
14 Jul - 23 Jul	Icelandair
09 Jul - 15 Jul	Icelandair
15 Jul - 22 Jul	Icelandair
10 Jul - 15 Jul	Icelandair
30 Jul - 16 Aug	Scandinavian Airlines
21 Jul - 26 Jul	TAP
14 Jul - 22 Jul	United
30 Jul - 14 Aug	Delta

Also check the deals for one-way flights from Newark to Oslo in July.

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 July from 409€

Return flights