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

Return flights

24 Sep - 08 Oct	Icelandair
23 Sep - 08 Oct	Icelandair
24 Sep - 02 Oct	Icelandair
07 Sep - 24 Sep	Icelandair
06 Sep - 14 Sep	Icelandair
07 Sep - 14 Sep	Icelandair
06 Sep - 24 Sep	Icelandair
18 Sep - 25 Sep	Icelandair
30 Sep - 13 Oct	TAP
21 Sep - 06 Oct	TAP
22 Sep - 03 Oct	TAP
23 Sep - 30 Sep	TAP
18 Sep - 02 Oct	Icelandair
24 Sep - 01 Oct	TAP
24 Sep - 29 Sep	TAP
07 Sep - 12 Sep	Icelandair
07 Sep - 11 Sep	Icelandair
06 Sep - 12 Sep	Icelandair
30 Sep - 23 Oct	TAP
23 Sep - 01 Oct	TAP

Also check the deals for one-way flights from Newark to Rome 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 Newark to Rome in September from $377

Return flights