AirHint found the following cheapest return flights from Osaka (KIX) to Bangkok (BKK) in September 2026 (see full year).

Return flights

12 Sep - 14 Sep	China Southern
01 Sep - 14 Sep	China Southern
02 Sep - 08 Sep	China Southern
06 Sep - 08 Sep	China Southern
17 Sep - 21 Sep	China Southern
15 Sep - 18 Sep	China Southern
09 Sep - 13 Sep	China Southern
10 Sep - 13 Sep	China Southern
01 Sep - 07 Sep	China Southern
05 Sep - 09 Sep	China Southern
30 Sep - 07 Oct	Thai AirAsia X	direct
30 Sep - 06 Oct	Thai AirAsia X	direct
30 Sep - 26 Oct	Thai AirAsia X	direct
21 Sep - 13 Oct	Vietnam Airlines
21 Sep - 13 Oct	Thai Airways	direct

Also check the deals for one-way flights from Osaka to Bangkok 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 Bangkok in September from 199€

Return flights