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

Return flights

14 Sep - 19 Sep	Thai AirAsia
14 Sep - 17 Sep	Thai AirAsia
14 Sep - 24 Sep	Thai AirAsia
07 Sep - 19 Sep	Thai AirAsia
07 Sep - 17 Sep	Thai AirAsia
07 Sep - 12 Sep	Thai AirAsia
07 Sep - 24 Sep	Thai AirAsia
07 Sep - 08 Sep	Thai AirAsia
14 Sep - 15 Sep	Thai AirAsia
12 Sep - 19 Sep	AirAsia Cambodia
19 Sep - 08 Oct	Thai AirAsia
22 Sep - 08 Oct	Thai AirAsia
30 Sep - 04 Oct	Cathay Pacific
28 Sep - 08 Oct	Thai AirAsia
24 Sep - 08 Oct	AirAsia Cambodia
28 Sep - 17 Oct	Thai AirAsia

Also check the deals for one-way flights from Phnom-penh to Delhi 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 Phnom-penh to Delhi in September from $335

Return flights