Cheapest return flights from Philadelphia to Zurich in September from $571

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

Return flights

11 Sep - 15 Sep American Airlines
14 Sep - 04 Oct Air Canada
15 Sep - 11 Oct Air Canada
15 Sep - 11 Oct Finnair direct
07 Sep - 27 Sep Frontier Airlines
06 Sep - 10 Sep Spirit Airlines
06 Sep - 27 Sep Spirit Airlines
12 Sep - 26 Sep American Airlines
06 Sep - 27 Sep Finnair direct
06 Sep - 10 Sep American Airlines direct

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