Cheapest one-way flights from Phnom-penh to Vientiane in September from $138

Best time to book flights for Phnom-penh (PNH) to Vientiane (VTE) flights at AirHint

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

One-Way flights

02 Sep Thai AirAsia
17 Sep Thai AirAsia
15 Sep Thai AirAsia
28 Sep Thai AirAsia
09 Sep Thai AirAsia
30 Sep Thai AirAsia
17 Sep Vietnam Airlines direct
09 Sep Vietnam Airlines direct
30 Sep Vietnam Airlines direct
28 Sep Vietnam Airlines direct

Also check the deals for return flights from Phnom-penh to Vientiane in September.

Skyscanner

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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