AirHint found the following cheapest return flights from Istanbul (IST) to Phnom-penh (PNH) in August 2025 (see full year).

Return flights

20 Aug - 27 Aug	IndiGo
28 Aug - 04 Sep	IndiGo
17 Aug - 05 Sep	Etihad Airways
17 Aug - 24 Aug	Etihad Airways
21 Aug - 26 Aug	IndiGo
17 Aug - 25 Aug	IndiGo
24 Aug - 28 Aug	IndiGo
10 Aug - 14 Aug	IndiGo
07 Aug - 14 Aug	IndiGo
22 Aug - 29 Aug	IndiGo
04 Aug - 11 Aug	IndiGo
19 Aug - 24 Aug	IndiGo

Also check the deals for one-way flights from Istanbul to Phnom-penh in August.

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 Istanbul to Phnom-penh in August from 521€

Return flights