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

Return flights

28 Oct - 04 Nov	British Airways
20 Oct - 05 Nov	British Airways
22 Oct - 05 Nov	British Airways
21 Oct - 28 Oct	WestJet
30 Oct - 06 Nov	Air Canada
08 Oct - 15 Oct	WestJet
14 Oct - 21 Oct	Air Transat
27 Oct - 03 Nov	Air Canada
29 Oct - 05 Nov	Air Canada
20 Oct - 27 Oct	British Airways
15 Oct - 28 Oct	British Airways
15 Oct - 22 Oct	Air Canada
01 Oct - 08 Oct	Iberia
26 Oct - 02 Nov	Porter Airlines (Canada) Ltd
07 Oct - 14 Oct	Iberia
22 Oct - 29 Oct	LOT
31 Oct - 07 Nov	LOT
13 Oct - 20 Oct	WestJet
05 Oct - 04 Nov	Air Transat
26 Oct - 10 Nov	LOT

Also check the deals for one-way flights from Toronto 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 Toronto to Bucharest in October from 477€

Return flights