AirHint found the following cheapest return flights from Ontario (ONT) to Oslo (OSL) in January 2026 (see full year).
Return flights
| 01 Jan - 15 Jan | British Airways | ||
| 09 Jan - 16 Jan | British Airways | ||
| 09 Jan - 18 Jan | British Airways | ||
| 07 Jan - 12 Jan | British Airways |
Also check the deals for one-way flights from Ontario to Oslo in January.
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