AirHint found the following cheapest return flights from Ontario (ONT) to Sulaymaniyah (ISU) in April 2026 (see full year).

Return flights

02 Apr - 23 Apr	Alaska Airlines
21 Apr - 29 Apr	Alaska Airlines
07 Apr - 29 Apr	Alaska Airlines
16 Apr - 11 May	Alaska Airlines
21 Apr - 08 May	Alaska Airlines
07 Apr - 04 May	Alaska Airlines
28 Apr - 19 May	Alaska Airlines
16 Apr - 05 May	Alaska Airlines
01 Apr - 09 Apr	Qatar Airways
01 Apr - 21 Apr	Qatar Airways
01 Apr - 28 Apr	Qatar Airways
01 Apr - 22 Apr	Qatar Airways
08 Apr - 17 Apr	Qatar Airways
08 Apr - 23 Apr	Qatar Airways
08 Apr - 29 Apr	Qatar Airways
22 Apr - 13 May	Qatar Airways
15 Apr - 06 May	Qatar Airways
22 Apr - 07 May	Qatar Airways
29 Apr - 25 May	Qatar Airways
05 Apr - 01 May	Qatar Airways

Also check the deals for one-way flights from Ontario to Sulaymaniyah in April.

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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Cheapest return flights from Ontario to Sulaymaniyah in April from $1101

Return flights