Cheapest return flights from Philadelphia to Toronto in May from $281

Best time to book flights for Philadelphia (PHL) to Toronto (YYZ) flights at AirHint

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

Return flights

15 May - 19 May Spirit Airlines
01 May - 03 May Spirit Airlines
22 May - 25 May Frontier Airlines
15 May - 19 May Air Canada direct
23 May - 26 May Air Canada direct
01 May - 03 May Air Canada direct
22 May - 25 May United direct

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

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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