AirHint found the following cheapest one-way flights from St. John (YSJ) to Toronto (YYZ) in September 2025 (see full year).

One-Way flights

29 Sep	Flair Airlines	direct
26 Sep	Flair Airlines	direct
30 Sep	Air Canada	direct
23 Sep	Air Canada	direct
25 Sep	Privilege Style
18 Sep	Privilege Style
17 Sep	Privilege Style
18 Sep	Air Canada	direct
17 Sep	Air Canada	direct

Also check the deals for return flights from St. John 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.

Book a cheap hotel in Toronto

Cheap car rent in Toronto

Cheapest one-way flights from St. John to Toronto in September from $114

One-Way flights