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

Return flights

23 Dec - 19 Jan	Jetstar Japan
31 Dec - 14 Jan	Cathay Pacific
31 Dec - 12 Jan	Cathay Pacific
31 Dec - 11 Jan	Cathay Pacific
31 Dec - 10 Jan	Cathay Pacific
23 Dec - 26 Dec	China Airlines
23 Dec - 25 Dec	Jetstar Japan
31 Dec - 09 Jan	Cathay Pacific
23 Dec - 27 Dec	China Airlines
29 Dec - 27 Jan	Spring Airlines Japan
31 Dec - 08 Jan	VietJet Air
31 Dec - 06 Jan	EVA Air
24 Dec - 29 Dec	T'way Air
31 Dec - 05 Jan	Peach
24 Dec - 27 Dec	T'way Air
25 Dec - 30 Dec	Spring Airlines Japan
25 Dec - 31 Dec	Korean Air
29 Dec - 31 Dec	Cathay Pacific
24 Dec - 28 Dec	Peach
25 Dec - 27 Dec	Jeju 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 $485

Return flights