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

Return flights

03 Dec - 07 Dec	VietJet Air
09 Dec - 14 Dec	VietJet Air
22 Dec - 21 Jan	VietJet Air
04 Dec - 12 Dec	Spring Airlines
12 Dec - 15 Dec	Air China
10 Dec - 17 Dec	Air China
10 Dec - 13 Dec	Air China
11 Dec - 16 Dec	Air China
13 Dec - 15 Dec	Air China
11 Dec - 15 Dec	Air China
20 Dec - 22 Dec	Air China
22 Dec - 12 Jan	Air China
22 Dec - 14 Jan	Air China
19 Dec - 09 Jan	Air China
01 Dec - 28 Jan	Air China
22 Dec - 08 Jan	Air China
01 Dec - 30 Jan	Air China
02 Dec - 07 Jan	Spring Airlines
18 Dec - 07 Jan	Spring Airlines
17 Dec - 06 Jan	VietJet Air

Also check the deals for one-way flights from Tokyo 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 Tokyo to Bangkok in December from $302

Return flights