AirHint found the following cheapest return flights from Phnom-penh (PNH) to Vientiane (VTE) in September 2025 (see full year).
Return flights
| 01 Sep - 08 Sep | Thai VietJet Air | ||
| 11 Sep - 23 Sep | Thai AirAsia | ||
| 25 Sep - 07 Oct | Thai AirAsia | ||
| 19 Sep - 23 Sep | Thai AirAsia | ||
| 19 Sep - 07 Oct | Thai AirAsia |
Also check the deals for one-way flights from Phnom-penh to Vientiane 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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