Cheapest return flights from Ontario to Oslo in August from $737

AirHint found the following cheapest return flights from Ontario (ONT) to Oslo (OSL) in August 2026 (see full year).

Return flights

18 Aug - 25 Aug British Airways
29 Aug - 12 Sep British Airways
11 Aug - 18 Aug British Airways
19 Aug - 26 Aug British Airways
12 Aug - 19 Aug British Airways
22 Aug - 29 Aug British Airways
16 Aug - 23 Aug British Airways
04 Aug - 11 Aug British Airways
23 Aug - 30 Aug British Airways
05 Aug - 12 Aug British Airways
08 Aug - 15 Aug British Airways
26 Aug - 09 Sep British Airways
26 Aug - 02 Sep British Airways
31 Aug - 07 Sep British Airways
28 Aug - 04 Sep British Airways

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

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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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