Cheapest one-way flights from Phoenix to Rome in September from $258

AirHint found the following cheapest one-way flights from Phoenix (PHX) to Rome (FCO) in September 2025 (see full year).

One-Way flights

27 Sep Frontier Airlines
29 Sep Frontier Airlines
13 Sep Frontier Airlines
20 Sep Frontier Airlines
08 Sep Frontier Airlines
12 Sep Frontier Airlines
19 Sep Frontier Airlines
14 Sep Frontier Airlines
15 Sep Frontier Airlines
06 Sep Frontier Airlines

Also check the deals for return flights from Phoenix to Rome in September.

Skyscanner

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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