AirHint found the following cheapest return flights from Montreal (YUL) to Krakow (KRK) in September 2025 (see full year).

Return flights

28 Sep - 05 Oct	FrenchBee
30 Sep - 07 Oct	Air Transat
29 Sep - 06 Oct	FrenchBee
26 Sep - 03 Oct	FrenchBee
24 Sep - 01 Oct	FrenchBee
30 Sep - 15 Oct	Porter Airlines (Canada) Ltd
23 Sep - 30 Sep	SWISS
19 Sep - 10 Oct	FrenchBee
30 Sep - 25 Oct	SWISS
25 Sep - 02 Oct	Air France
19 Sep - 26 Sep	Air France
18 Sep - 11 Oct	WestJet
22 Sep - 29 Sep	FrenchBee
20 Sep - 25 Sep	KLM
21 Sep - 28 Sep	FrenchBee
20 Sep - 27 Sep	Air Transat

Also check the deals for one-way flights from Montreal to Krakow in September.

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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Cheapest return flights from Montreal to Krakow in September from $675

Return flights