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

Return flights

10 Sep - 10 Sep	Spring Airlines	direct
10 Sep - 25 Sep	Spring Airlines	direct
20 Sep - 25 Sep	Spring Airlines	direct
20 Sep - 01 Oct	Spring Airlines	direct
01 Sep - 05 Sep	Spring Airlines	direct
20 Sep - 06 Oct	Spring Airlines	direct
26 Sep - 01 Oct	Spring Airlines	direct
01 Sep - 10 Sep	Thai AirAsia
26 Sep - 06 Oct	Spring Airlines	direct
10 Sep - 01 Oct	Thai AirAsia

Also check the deals for one-way flights from Shenzhen 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 Shenzhen to Phnom-penh in September from $185

Return flights