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

Return flights

14 Oct - 07 Nov	Air Transat
05 Oct - 12 Oct	FrenchBee
06 Oct - 10 Oct	FrenchBee
07 Oct - 09 Oct	Porter Airlines (Canada) Ltd
01 Oct - 08 Oct	FrenchBee
15 Oct - 08 Nov	FrenchBee
14 Oct - 02 Nov	Air Transat
21 Oct - 04 Nov	Air Transat
08 Oct - 31 Oct	Air Canada
14 Oct - 31 Oct	Air Canada
15 Oct - 30 Oct	SWISS
02 Oct - 09 Oct	Air Canada
08 Oct - 15 Oct	Air Canada
14 Oct - 21 Oct	Air Canada
26 Oct - 02 Nov	SWISS
28 Oct - 04 Nov	Air Canada
29 Oct - 05 Nov	Air Canada
27 Oct - 03 Nov	Air Canada
15 Oct - 03 Nov	Air Canada
30 Oct - 06 Nov	Air Canada

Also check the deals for one-way flights from Montreal to Bucharest 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 Bucharest in October from $631

Return flights