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

Return flights

27 Oct - 03 Nov	Porter Airlines (Canada) Ltd
29 Oct - 05 Nov	Porter Airlines (Canada) Ltd
28 Oct - 04 Nov	Porter Airlines (Canada) Ltd
30 Oct - 06 Nov	Porter Airlines (Canada) Ltd
01 Oct - 08 Oct	FrenchBee
05 Oct - 12 Oct	Air Transat
14 Oct - 21 Oct	Air Transat
10 Oct - 21 Oct	Air Transat
03 Oct - 10 Oct	Air Transat
07 Oct - 14 Oct	Air Transat
12 Oct - 19 Oct	Air Transat
06 Oct - 13 Oct	FrenchBee
04 Oct - 14 Oct	Air Transat
04 Oct - 11 Oct	Air Transat
31 Oct - 07 Nov	Condor
26 Oct - 02 Nov	Condor

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 524€

Return flights