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

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.

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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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