Cheapest return flights from Ontario to Ljubljana in May from $808

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

Return flights

01 May - 01 Jun British Airways
26 May - 02 Jun Turkish Airlines
23 May - 31 May Turkish Airlines
29 May - 05 Jun Alaska Airlines
17 May - 24 May Turkish Airlines
24 May - 31 May Alaska Airlines
21 May - 31 May Turkish Airlines
27 May - 03 Jun British Airways
05 May - 12 May Alaska Airlines
23 May - 30 May British Airways

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

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