AirHint found the following cheapest return flights from Newburgh (SWF) to Oslo (OSL) in August 2025 (see full year).

Return flights

20 Aug - 28 Aug	Fly Play
20 Aug - 26 Aug	Fly Play
13 Aug - 26 Aug	Fly Play
22 Aug - 26 Aug	Allegiant Air
23 Aug - 26 Aug	Fly Play
06 Aug - 12 Aug	Fly Play
11 Aug - 19 Aug	Fly Play
21 Aug - 30 Aug	Fly Play
24 Aug - 31 Aug	Allegiant Air
07 Aug - 18 Aug	Fly Play

Also check the deals for one-way flights from Newburgh to Oslo in August.

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 Newburgh to Oslo in August from $643

Return flights