Cheapest one-way flights from Ottawa to Cairns in May from $610

AirHint found the following cheapest one-way flights from Ottawa (YOW) to Cairns (CNS) in May 2026 (see full year).

One-Way flights

29 May Porter Airlines (Canada) Ltd
30 May WestJet

Also check the deals for return flights from Ottawa to Cairns in May.

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