Cheapest return flights from Ontario to Warsaw in May from $527

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

Return flights

10 May - 24 May British Airways
12 May - 26 May British Airways
09 May - 23 May British Airways
23 May - 30 May British Airways

Also check the deals for one-way flights from Ontario to Warsaw 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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