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

Return flights

06 Oct - 13 Oct	FrenchBee
08 Oct - 15 Oct	FrenchBee
03 Oct - 10 Oct	FrenchBee
01 Oct - 15 Oct	FrenchBee
01 Oct - 10 Oct	FrenchBee
05 Oct - 10 Oct	FrenchBee
09 Oct - 20 Oct	Air Transat
03 Oct - 12 Oct	FrenchBee
01 Oct - 08 Oct	FrenchBee
13 Oct - 20 Oct	FrenchBee
29 Oct - 05 Nov	British Airways
29 Oct - 19 Nov	Air Canada
14 Oct - 04 Nov	Air Canada
21 Oct - 11 Nov	Air Canada
30 Oct - 06 Nov	Air Canada
28 Oct - 18 Nov	Air Canada
22 Oct - 12 Nov	Air Canada
28 Oct - 04 Nov	Air Canada
31 Oct - 07 Nov	Air Transat
26 Oct - 02 Nov	Air Transat

Also check the deals for one-way flights from Montreal to Istanbul 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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Montreal to Istanbul in October from 544€

Return flights