AirHint found the following cheapest return flights from Phoenix (PHX) to Paris (ORY) in September 2025 (see full year).

Return flights

24 Sep - 01 Oct	Frontier Airlines
21 Sep - 25 Sep	Frontier Airlines
18 Sep - 25 Sep	Spirit Airlines
26 Sep - 03 Oct	Frontier Airlines
06 Sep - 11 Sep	Frontier Airlines
11 Sep - 18 Sep	Frontier Airlines
21 Sep - 05 Oct	Frontier Airlines
18 Sep - 21 Sep	Spirit Airlines
10 Sep - 17 Sep	Frontier Airlines
20 Sep - 04 Oct	Royal Air Maroc
25 Sep - 08 Oct	Royal Air Maroc
06 Sep - 13 Sep	British Airways

Also check the deals for one-way flights from Phoenix to Paris 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 Phoenix to Paris in September from $696

Return flights