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

Return flights

18 Aug - 26 Aug	Air Canada
19 Aug - 28 Aug	Air Canada
18 Aug - 28 Aug	Air Canada
11 Aug - 17 Aug	Air Canada
11 Aug - 21 Aug	Air Canada
29 Aug - 01 Sep	Air Canada
22 Aug - 01 Sep	Air Canada
26 Aug - 01 Sep	Air Canada
26 Aug - 02 Sep	Air Canada
07 Aug - 18 Aug	Air Canada
22 Aug - 26 Aug	Spirit Airlines
21 Aug - 25 Aug	Air Canada
25 Aug - 31 Aug	Air Canada
13 Aug - 17 Aug	Air Canada
28 Aug - 02 Sep	Air Canada
29 Aug - 02 Sep	Air Canada
29 Aug - 09 Sep	Air Canada
29 Aug - 20 Sep	Air Canada

Also check the deals for one-way flights from New York 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 New York to Oslo in August from $493

Return flights