Cheapest return flights from Phnom-penh to Vientiane in September from 260€

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

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

Return flights

18 Sep - 01 Oct Thai AirAsia
15 Sep - 01 Oct Thai AirAsia
14 Sep - 01 Oct Thai AirAsia
16 Sep - 01 Oct Thai AirAsia
17 Sep - 01 Oct Thai AirAsia
15 Sep - 18 Sep Thai AirAsia
18 Sep - 07 Oct Thai AirAsia
16 Sep - 07 Oct Thai AirAsia
17 Sep - 07 Oct Thai AirAsia
15 Sep - 17 Sep Thai AirAsia
14 Sep - 17 Sep Thai AirAsia
22 Sep - 01 Oct Thai AirAsia
22 Sep - 07 Oct Thai AirAsia
15 Sep - 18 Sep Vietnam Airlines direct

Also check the deals for one-way flights from Phnom-penh to Vientiane 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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