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

Return flights

26 Sep - 13 Oct	WestJet
11 Sep - 19 Sep	Air Transat
11 Sep - 23 Sep	WestJet
23 Sep - 30 Sep	Aer Lingus
02 Sep - 20 Sep	Flair Airlines
06 Sep - 20 Sep	Flair Airlines
02 Sep - 23 Sep	Flair Airlines
26 Sep - 10 Oct	WestJet
30 Sep - 06 Oct	Aer Lingus
22 Sep - 08 Oct	Condor
22 Sep - 07 Oct	Condor
23 Sep - 07 Oct	Condor
01 Sep - 07 Sep	Porter Airlines (Canada) Ltd
11 Sep - 22 Sep	WestJet
11 Sep - 21 Sep	WestJet
09 Sep - 15 Oct	Flair Airlines
04 Sep - 02 Oct	Flair Airlines
02 Sep - 28 Sep	Flair Airlines
26 Sep - 14 Oct	SWISS
17 Sep - 15 Oct	Air Canada

Also check the deals for one-way flights from Toronto to Bucharest in September.

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 September from 485€

Return flights