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

Return flights

03 Dec - 10 Dec	United
01 Dec - 22 Dec	Asiana Airlines
30 Dec - 13 Jan	Asiana Airlines
29 Dec - 11 Jan	Asiana Airlines
01 Dec - 08 Dec	Asiana Airlines
08 Dec - 25 Dec	Asiana Airlines
26 Dec - 04 Jan	Xiamen Airlines
07 Dec - 17 Dec	ANA
07 Dec - 21 Dec	Kuwait Airways
04 Dec - 11 Dec	United
28 Dec - 11 Jan	Asiana Airlines
30 Dec - 07 Jan	Asiana Airlines
08 Dec - 19 Dec	United
07 Dec - 24 Dec	Delta
11 Dec - 18 Dec	Asiana Airlines
25 Dec - 10 Jan	Asiana Airlines
11 Dec - 12 Jan	Asiana Airlines
27 Dec - 11 Jan	Asiana Airlines
26 Dec - 11 Jan	Asiana Airlines
28 Dec - 04 Jan	Asiana Airlines

Also check the deals for one-way flights from New York 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 New York to Bangkok in December from 634€

Return flights