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

Return flights

10 Sep - 17 Sep	Air Canada
07 Sep - 18 Sep	United
10 Sep - 19 Sep	United
07 Sep - 16 Sep	United
07 Sep - 24 Sep	United
22 Sep - 03 Oct	United
30 Sep - 07 Oct	United
22 Sep - 01 Oct	United
22 Sep - 24 Sep	Air Canada
12 Sep - 18 Sep	United
25 Sep - 02 Oct	United
08 Sep - 15 Sep	Air Canada
12 Sep - 16 Sep	United
11 Sep - 18 Sep	United
11 Sep - 02 Oct	United
27 Sep - 08 Oct	United
26 Sep - 03 Oct	United
25 Sep - 01 Oct	United
13 Sep - 15 Oct	United
15 Sep - 07 Oct	Air Canada

Also check the deals for one-way flights from New York 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 New York to Rome in September from 336€

Return flights