Cheapest return flights from Philadelphia to Frankfurt in September from 568€

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

Return flights

16 Sep - 30 Sep Condor
28 Sep - 09 Oct Condor
22 Sep - 12 Oct Condor
08 Sep - 15 Sep Frontier Airlines
12 Sep - 29 Sep Condor
17 Sep - 22 Sep Frontier Airlines
01 Sep - 09 Sep Lufthansa direct
08 Sep - 17 Sep Lufthansa direct
16 Sep - 30 Sep Discover Airlines direct
27 Sep - 08 Oct jetBlue
28 Sep - 09 Oct Discover Airlines direct
08 Sep - 15 Sep Lufthansa direct
13 Sep - 27 Sep Air Canada
17 Sep - 22 Sep Discover Airlines direct
22 Sep - 12 Oct United direct

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

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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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