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

26 Sep Thai AirAsia
16 Sep Thai AirAsia
08 Sep Thai AirAsia
23 Sep Thai AirAsia
19 Sep Thai AirAsia
23 Sep Vietnam Airlines direct
19 Sep Vietnam Airlines direct
16 Sep Vietnam Airlines direct
08 Sep Vietnam Airlines direct
26 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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