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

Return flights

30 Sep - 21 Oct	Porter Airlines (Canada) Ltd
22 Sep - 29 Sep	Air Transat
23 Sep - 28 Oct	Porter Airlines (Canada) Ltd
23 Sep - 18 Oct	Porter Airlines (Canada) Ltd
26 Sep - 10 Oct	Porter Airlines (Canada) Ltd
29 Sep - 25 Oct	Porter Airlines (Canada) Ltd
22 Sep - 08 Oct	Porter Airlines (Canada) Ltd
26 Sep - 05 Oct	Porter Airlines (Canada) Ltd
19 Sep - 04 Oct	Air Transat
28 Sep - 18 Oct	Porter Airlines (Canada) Ltd
30 Sep - 15 Oct	SWISS
23 Sep - 28 Sep	SWISS
18 Sep - 23 Sep	SWISS
18 Sep - 25 Sep	SWISS

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.

Book a cheap hotel in Bucharest

Cheap car rent in Bucharest

Cheapest return flights from Toronto to Bucharest in September from 617€

Return flights