AirHint found the following cheapest return flights from Osaka (KIX) to Vientiane (VTE) in September 2025 (see full year).

Return flights

20 Sep - 24 Sep	China Eastern
17 Sep - 08 Oct	VietJet Air
16 Sep - 22 Sep	Jeju Air
18 Sep - 22 Sep	Jeju Air
10 Sep - 13 Sep	Jeju Air
18 Sep - 10 Oct	VietJet Air
18 Sep - 09 Oct	VietJet Air
08 Sep - 15 Sep	Jeju Air
06 Sep - 08 Sep	Jeju Air
14 Sep - 16 Sep	Jeju Air
23 Sep - 25 Sep	VietJet Air
28 Sep - 29 Sep	VietJet Air
18 Sep - 26 Sep	Jeju Air
30 Sep - 08 Oct	Thai AirAsia X
23 Sep - 08 Oct	Thai AirAsia X
26 Sep - 08 Oct	Thai AirAsia X
18 Sep - 08 Oct	Thai AirAsia X
17 Sep - 05 Oct	Thai AirAsia X
28 Sep - 08 Oct	Thai AirAsia X
30 Sep - 19 Oct	Thai AirAsia X

Also check the deals for one-way flights from Osaka 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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Cheapest return flights from Osaka to Vientiane in September from $297

Return flights