Cheapest return flights from Philadelphia to Toronto in September from $226

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

Return flights

27 Sep - 28 Sep Spirit Airlines
13 Sep - 14 Sep Spirit Airlines
26 Sep - 28 Sep Spirit Airlines
24 Sep - 27 Sep Spirit Airlines
19 Sep - 21 Sep Spirit Airlines
22 Sep - 25 Sep Spirit Airlines
26 Sep - 03 Oct Spirit Airlines
23 Sep - 27 Sep Spirit Airlines
29 Sep - 06 Oct Frontier Airlines
13 Sep - 20 Sep Frontier Airlines
19 Sep - 23 Sep Spirit Airlines
20 Sep - 25 Sep Spirit Airlines
29 Sep - 06 Oct Air Canada direct
26 Sep - 03 Oct Air Canada direct

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

Skyscanner

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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