Cheapest return flights from Ontario to Oslo in March from $664

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

Return flights

04 Mar - 11 Mar British Airways
17 Mar - 24 Mar Delta
26 Mar - 02 Apr British Airways
19 Mar - 26 Mar British Airways
23 Mar - 30 Mar British Airways
02 Mar - 09 Mar British Airways
02 Mar - 18 Mar British Airways
09 Mar - 16 Mar British Airways
06 Mar - 13 Mar British Airways
28 Mar - 04 Apr Alaska Airlines
05 Mar - 12 Mar British Airways
01 Mar - 08 Mar British Airways
30 Mar - 13 Apr British Airways
27 Mar - 03 Apr British Airways
30 Mar - 06 Apr British Airways
27 Mar - 06 Apr British Airways

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

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