AirHint found the following cheapest return flights from Phoenix (PHX) to Rome (FCO) in May 2026 (see full year).

Return flights

13 May - 20 May	WestJet
13 May - 21 May	WestJet
09 May - 16 May	Frontier Airlines
06 May - 20 May	Frontier Airlines
12 May - 19 May	United
13 May - 25 May	Air France
15 May - 22 May	Alaska Airlines
30 May - 08 Jun	WestJet
25 May - 30 Jun	Air France
31 May - 12 Jun	WestJet
21 May - 04 Jun	WestJet
22 May - 05 Jun	WestJet
05 May - 12 May	ITA Airways
08 May - 15 May	ITA Airways
02 May - 09 May	ITA Airways
28 May - 04 Jun	ITA Airways

Also check the deals for one-way flights from Phoenix to Rome in May.

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 Phoenix to Rome in May from 543€

Return flights