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

Return flights

17 Sep - 18 Sep	Jeju Air
15 Sep - 18 Sep	Jeju Air
22 Sep - 25 Sep	VietJet Air
16 Sep - 18 Sep	Jeju Air
24 Sep - 30 Sep	VietJet Air
17 Sep - 21 Sep	Jeju Air
24 Sep - 26 Sep	VietJet Air
28 Sep - 30 Sep	VietJet Air
27 Sep - 30 Sep	VietJet Air
26 Sep - 30 Sep	VietJet Air
30 Sep - 02 Oct	VietJet Air
28 Sep - 02 Oct	VietJet Air

Also check the deals for one-way flights from Tokyo 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 Tokyo to Vientiane in September from 431€

Return flights