Cheapest return flights from Ontario to Warsaw in May from $1289

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

Return flights

13 May - 27 May British Airways
15 May - 29 May British Airways
20 May - 17 Jun 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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