AirHint found the following cheapest return flights from Montreal (YUL) to Prague (PRG) in October 2025 (see full year).

Return flights

03 Oct - 10 Oct	SWISS
11 Oct - 18 Oct	Air Transat
08 Oct - 15 Oct	Air Transat
17 Oct - 31 Oct	WestJet
04 Oct - 11 Oct	Air Transat
19 Oct - 26 Oct	FrenchBee
10 Oct - 17 Oct	FrenchBee
27 Oct - 03 Nov	British Airways
22 Oct - 03 Nov	British Airways
07 Oct - 14 Oct	British Airways
14 Oct - 21 Oct	British Airways
20 Oct - 27 Oct	British Airways
26 Oct - 02 Nov	British Airways
28 Oct - 04 Nov	British Airways
29 Oct - 05 Nov	British Airways
22 Oct - 13 Nov	British Airways
24 Oct - 07 Nov	TAP
30 Oct - 06 Nov	Air Transat
25 Oct - 01 Nov	British Airways

Also check the deals for one-way flights from Montreal to Prague in October.

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 Prague in October from 516€

Return flights