Cheapest return flights from Bangkok to Phnom-penh in September from $99

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

Return flights

20 Sep - 27 Sep Thai VietJet Air direct
08 Sep - 30 Sep Thai VietJet Air direct
08 Sep - 15 Sep Thai VietJet Air direct
18 Sep - 24 Sep Thai VietJet Air direct
16 Sep - 21 Sep Thai VietJet Air direct
15 Sep - 22 Sep Thai VietJet Air direct
08 Sep - 22 Sep Thai VietJet Air direct
06 Sep - 13 Sep Thai VietJet Air direct
19 Sep - 22 Sep Thai VietJet Air direct
03 Sep - 06 Sep Thai VietJet Air direct
29 Sep - 18 Oct Thai AirAsia direct
28 Sep - 18 Oct Thai AirAsia direct
30 Sep - 18 Oct Thai AirAsia direct
29 Sep - 09 Oct Thai AirAsia direct
29 Sep - 08 Oct Thai AirAsia direct
20 Sep - 09 Oct Thai AirAsia direct
20 Sep - 08 Oct Thai AirAsia direct
22 Sep - 09 Oct Thai AirAsia direct
22 Sep - 08 Oct Thai AirAsia direct
23 Sep - 09 Oct Thai AirAsia direct

Also check the deals for one-way flights from Bangkok to Phnom-penh in September.

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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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