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

Return flights

19 Sep - 07 Oct	TAP
23 Sep - 28 Sep	TAP
12 Sep - 23 Sep	TAP
11 Sep - 15 Sep	TAP
22 Sep - 28 Sep	TAP
11 Sep - 21 Sep	TAP
12 Sep - 21 Sep	TAP
11 Sep - 05 Oct	TAP
23 Sep - 05 Oct	TAP
19 Sep - 05 Oct	TAP
11 Sep - 25 Sep	TAP
24 Sep - 29 Sep	TAP
22 Sep - 29 Sep	TAP
07 Sep - 16 Sep	Austrian Airlines
23 Sep - 04 Oct	TAP
19 Sep - 04 Oct	TAP
24 Sep - 06 Oct	Scandinavian Airlines
05 Sep - 06 Oct	Scandinavian Airlines
25 Sep - 02 Oct	Scandinavian Airlines
18 Sep - 02 Oct	Scandinavian Airlines

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

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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Cheapest return flights from Frankfurt to Newark in September from $389

Return flights