Cheapest return flights from Philadelphia to Montreal in September from 275€

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

Return flights

26 Sep - 28 Sep Frontier Airlines
03 Sep - 07 Sep Spirit Airlines
11 Sep - 15 Sep Air Canada direct
03 Sep - 07 Sep Air Canada direct
26 Sep - 28 Sep Air Canada direct
28 Sep - 05 Oct Air Canada direct

Also check the deals for one-way flights from Philadelphia to Montreal 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.

Book a cheap hotel in Montreal

Cheap car rent in Montreal

Feel free to contact us with any feedback or request another flight research.