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

Return flights

01 Sep - 19 Sep	Vueling Airlines
14 Sep - 24 Sep	ITA Airways
17 Sep - 04 Oct	Kuwait Airways
02 Sep - 14 Sep	Etihad Airways
07 Sep - 27 Sep	Wizz Air
06 Sep - 27 Sep	Ryanair
01 Sep - 12 Sep	ITA Airways
05 Sep - 19 Sep	Ryanair
06 Sep - 20 Sep	Ryanair
05 Sep - 12 Sep	Wizz Air Malta

Also check the deals for one-way flights from Barcelona 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.

Book a cheap hotel in Phnom-penh

Cheap car rent in Phnom-penh

Cheapest return flights from Barcelona to Phnom-penh in September from 768€

Return flights