Cheapest return flights from Ontario to Oslo in May from 624€

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

Return flights

05 May - 12 May British Airways
01 May - 08 May British Airways
03 May - 10 May British Airways
04 May - 11 May British Airways
06 May - 13 May British Airways
02 May - 09 May British Airways
13 May - 20 May British Airways
08 May - 15 May British Airways
11 May - 18 May British Airways
19 May - 26 May British Airways
18 May - 01 Jun British Airways
26 May - 02 Jun British Airways
27 May - 03 Jun British Airways
31 May - 07 Jun British Airways
25 May - 01 Jun British Airways
29 May - 05 Jun British Airways
26 May - 20 Jun British Airways
27 May - 20 Jun British Airways
29 May - 20 Jun British Airways
30 May - 20 Jun British Airways

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

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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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