Cheapest return flights from Philadelphia to Frankfurt in September from $930

Best time to book flights for Philadelphia (PHL) to Frankfurt (FRA) flights at AirHint

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

Return flights

08 Sep - 22 Sep Air Canada
11 Sep - 25 Sep Aer Lingus
11 Sep - 25 Sep Lufthansa direct
06 Sep - 27 Sep Aer Lingus
08 Sep - 15 Sep Lufthansa direct
18 Sep - 25 Sep Lufthansa direct
08 Sep - 22 Sep Lufthansa direct
28 Sep - 05 Oct Lufthansa direct

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