AirHint found the following cheapest return flights from Ontario (ONT) to Ljubljana (LJU) in April 2026 (see full year).
Return flights
| 23 Apr - 30 Apr | British Airways | ||
| 25 Apr - 02 May | British Airways | ||
| 20 Apr - 27 Apr | British Airways | ||
| 27 Apr - 04 May | British Airways | ||
| 26 Apr - 03 May | British Airways |
Also check the deals for one-way flights from Ontario to Ljubljana in April.
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