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

Return flights

31 Dec - 07 Jan	Jetstar Japan
31 Dec - 01 Jan	EVA Air
31 Dec - 08 Jan	EVA Air
31 Dec - 06 Jan	EVA Air
31 Dec - 05 Jan	EVA Air
30 Dec - 06 Jan	Jetstar Japan
31 Dec - 03 Jan	EVA Air
31 Dec - 02 Jan	EVA Air
30 Dec - 04 Jan	Air Macau
31 Dec - 04 Jan	EVA Air
29 Dec - 31 Dec	Jeju Air
27 Dec - 31 Dec	STARLUX Airlines
28 Dec - 31 Dec	Eastar Jet
30 Dec - 31 Dec	T'way Air
30 Dec - 30 Dec	Cathay Pacific
31 Dec - 31 Dec	Cathay Pacific
30 Dec - 31 Dec	Thai AirAsia X	direct
29 Dec - 31 Dec	Thai Airways	direct
30 Dec - 30 Dec	Thai Airways	direct
28 Dec - 29 Dec	Japan Airlines	direct

Also check the deals for one-way flights from Osaka to Bangkok in December.

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 December from 278€

Return flights