AirHint found the following cheapest return flights from Paris (ORY) to Phnom-penh (PNH) in September 2025 (see full year).

Return flights

25 Sep - 16 Oct	Vueling Airlines
15 Sep - 14 Oct	Transavia France
16 Sep - 26 Sep	Transavia France
25 Sep - 05 Oct	Iberia
05 Sep - 05 Oct	Iberia
19 Sep - 30 Sep	Iberia
20 Sep - 05 Oct	Iberia
17 Sep - 28 Sep	Iberia
03 Sep - 18 Sep	Iberia
12 Sep - 03 Oct	Iberia
01 Sep - 01 Oct	Iberia
09 Sep - 20 Sep	Iberia
02 Sep - 12 Sep	Iberia
01 Sep - 20 Sep	Iberia
02 Sep - 08 Sep	Iberia
03 Sep - 03 Oct	Iberia
27 Sep - 12 Oct	Iberia
01 Sep - 19 Sep	Iberia
06 Sep - 18 Oct	Iberia
08 Sep - 20 Sep	Qatar Airways

Also check the deals for one-way flights from Paris to Phnom-penh 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 Paris to Phnom-penh in September from 555€

Return flights