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

Return flights

16 Aug - 18 Aug	Thai AirAsia
05 Aug - 08 Aug	Thai AirAsia
27 Aug - 11 Sep	Thai AirAsia
11 Aug - 18 Aug	Thai AirAsia
12 Aug - 18 Aug	Thai AirAsia
05 Aug - 18 Aug	Thai AirAsia
27 Aug - 01 Sep	Thai AirAsia
16 Aug - 25 Aug	Thai AirAsia
17 Aug - 18 Aug	Thai AirAsia
23 Aug - 25 Aug	Thai AirAsia
23 Aug - 11 Sep	Thai AirAsia
29 Aug - 11 Sep	Thai AirAsia
18 Aug - 25 Aug	Thai AirAsia
11 Aug - 14 Aug	Thai AirAsia
16 Aug - 01 Sep	Thai AirAsia
25 Aug - 11 Sep	Thai AirAsia
23 Aug - 01 Sep	Thai AirAsia
29 Aug - 01 Sep	Thai AirAsia
18 Aug - 01 Sep	Thai AirAsia
12 Aug - 01 Sep	Thai AirAsia

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

Book a cheap hotel in Phnom-penh

Cheap car rent in Phnom-penh

Cheapest return flights from Vientiane to Phnom-penh in August from 243€

Return flights