AirHint found the following cheapest return flights from Osaka (ITM) to Bangkok (BKK) in September 2025 (see full year).

Return flights

07 Sep - 12 Sep	ANA
13 Sep - 16 Sep	ANA
21 Sep - 25 Sep	ANA
09 Sep - 13 Sep	ANA
03 Sep - 09 Sep	ANA
02 Sep - 11 Sep	ANA
07 Sep - 11 Sep	ANA
04 Sep - 11 Sep	ANA
02 Sep - 09 Sep	ANA
01 Sep - 11 Sep	ANA
29 Sep - 06 Oct	ANA
30 Sep - 04 Oct	ANA
29 Sep - 03 Oct	Malaysia Airlines
21 Sep - 01 Oct	ANA
29 Sep - 01 Oct	ANA
30 Sep - 03 Oct	ANA
28 Sep - 03 Oct	ANA
28 Sep - 04 Oct	ANA
27 Sep - 01 Oct	Japan Airlines
23 Sep - 02 Oct	Japan Airlines

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Osaka to Bangkok in September from 373€

Return flights