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

Return flights

31 Jul - 22 Aug	British Airways
27 Jul - 03 Aug	British Airways
21 Jul - 28 Jul	British Airways
10 Jul - 17 Jul	British Airways
31 Jul - 09 Aug	British Airways
28 Jul - 04 Aug	British Airways
13 Jul - 20 Jul	British Airways
19 Jul - 26 Jul	British Airways
14 Jul - 21 Jul	British Airways
22 Jul - 29 Jul	British Airways
05 Jul - 12 Jul	British Airways
18 Jul - 25 Jul	British Airways
26 Jul - 02 Aug	British Airways
10 Jul - 19 Jul	British Airways
11 Jul - 18 Jul	British Airways
10 Jul - 01 Aug	British Airways
25 Jul - 01 Aug	British Airways

Also check the deals for one-way flights from Ontario 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 Ontario to Oslo in July from 757€

Return flights