AirHint found the following cheapest one-way flights from Newark (EWR) to Toronto (YTZ) in September 2025 (see full year).

One-Way flights

03 Sep	Porter Airlines (Canada) Ltd	direct
10 Sep	Air Canada
18 Sep	Air Canada
09 Sep	Porter Airlines (Canada) Ltd	direct
10 Sep	Porter Airlines (Canada) Ltd	direct
21 Sep	Porter Airlines (Canada) Ltd
14 Sep	Porter Airlines (Canada) Ltd	direct
11 Sep	Porter Airlines (Canada) Ltd	direct
11 Sep	Air Canada
20 Sep	Porter Airlines (Canada) Ltd

Also check the deals for return flights from Newark to Toronto 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 one-way flights from Newark to Toronto in September from 83€

One-Way flights