AirHint found the following cheapest return flights from Ontario (ONT) to Warsaw (WAW) in July 2025 (see full year).

Return flights

22 Jul - 29 Jul	LOT
16 Jul - 30 Jul	LOT
06 Jul - 20 Jul	LOT
18 Jul - 25 Jul	British Airways
28 Jul - 29 Aug	British Airways
21 Jul - 26 Jul	LOT
07 Jul - 08 Aug	British Airways
02 Jul - 09 Jul	LOT
09 Jul - 23 Jul	Iberia
06 Jul - 12 Jul	Iberia
02 Jul - 05 Jul	LOT

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

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.

Book a cheap hotel in Warsaw

Cheap car rent in Warsaw

Cheapest return flights from Ontario to Warsaw in July from $1258

Return flights