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

Return flights

11 Dec - 16 Dec	China Eastern
05 Dec - 13 Dec	China Eastern
04 Dec - 21 Dec	Air China
17 Dec - 23 Dec	Air China
17 Dec - 19 Dec	Air China
04 Dec - 09 Dec	Air China
04 Dec - 15 Dec	Air China
04 Dec - 19 Dec	Air China
04 Dec - 17 Dec	Air China
04 Dec - 23 Dec	Air China
17 Dec - 12 Jan	Air China
21 Dec - 01 Jan	Air Macau
23 Dec - 15 Jan	Thai AirAsia X	direct
20 Dec - 13 Jan	Thai AirAsia X	direct
15 Dec - 12 Jan	Air China
05 Dec - 20 Jan	Air China
02 Dec - 11 Jan	Air China
22 Dec - 17 Jan	Air China
01 Dec - 11 Jan	VietJet Air
24 Dec - 16 Jan	Thai AirAsia X	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 180€

Return flights