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

Return flights

06 Sep - 14 Sep	China Southern
01 Sep - 08 Sep	China Southern
01 Sep - 04 Sep	China Southern
04 Sep - 11 Sep	China Southern
04 Sep - 10 Sep	China Southern
03 Sep - 09 Sep	China Southern
01 Sep - 11 Sep	China Southern
05 Sep - 07 Sep	China Southern
06 Sep - 20 Sep	China Southern
01 Sep - 05 Sep	China Southern
30 Sep - 07 Oct	China Southern
28 Sep - 03 Oct	China Southern
24 Sep - 08 Oct	Thai Airways
24 Sep - 01 Oct	Thai Airways
29 Sep - 03 Oct	Thai Airways
29 Sep - 02 Oct	Thai Airways
17 Sep - 01 Oct	Thai Airways
06 Sep - 01 Oct	China Southern

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 438€

Return flights