Cheapest return flights from Ontario to Prague in September from $688

AirHint found the following cheapest return flights from Ontario (ONT) to Prague (PRG) in September 2025 (see full year).

Return flights

02 Sep - 16 Sep Alaska Airlines
14 Sep - 21 Sep Condor
21 Sep - 02 Oct Iberia
22 Sep - 06 Oct Iberia
23 Sep - 07 Oct LOT
05 Sep - 16 Sep LOT
19 Sep - 03 Oct Condor
01 Sep - 21 Sep LOT
04 Sep - 11 Sep Alaska Airlines
01 Sep - 08 Sep jetBlue
02 Sep - 23 Sep China Airlines

Also check the deals for one-way flights from Ontario to Prague in September.

Skyscanner

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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