AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Rome (FCO) in September 2025 (see full year).

Return flights

25 Sep - 08 Oct	Frontier Airlines
11 Sep - 20 Sep	Frontier Airlines
06 Sep - 23 Sep	Frontier Airlines
05 Sep - 12 Sep	Spirit Airlines
01 Sep - 12 Sep	Frontier Airlines
04 Sep - 12 Sep	Frontier Airlines
28 Sep - 04 Oct	Frontier Airlines
06 Sep - 13 Sep	Frontier Airlines
05 Sep - 13 Sep	Spirit Airlines
09 Sep - 16 Sep	United
30 Sep - 07 Oct	United
15 Sep - 23 Sep	United
04 Sep - 13 Sep	Frontier Airlines
24 Sep - 01 Oct	United
27 Sep - 04 Oct	United

Also check the deals for one-way flights from Raleigh-durham 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 Raleigh-durham to Rome in September from 378€

Return flights