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

Return flights

01 Dec - 09 Dec	Korean Air
01 Dec - 11 Dec	Korean Air
02 Dec - 09 Dec	Korean Air
01 Dec - 18 Dec	Korean Air
03 Dec - 12 Dec	Korean Air
02 Dec - 06 Dec	Korean Air
03 Dec - 25 Dec	Korean Air
02 Dec - 15 Dec	Korean Air
01 Dec - 17 Dec	Delta
04 Dec - 07 Dec	Korean Air
28 Dec - 14 Jan	Delta
29 Dec - 14 Jan	Frontier Airlines
09 Dec - 20 Jan	Air Canada
30 Dec - 12 Jan	Frontier Airlines
31 Dec - 20 Jan	Frontier Airlines
31 Dec - 16 Jan	Frontier Airlines
29 Dec - 22 Jan	Air Canada
27 Dec - 25 Jan	Korean Air
26 Dec - 26 Jan	Frontier Airlines
05 Dec - 09 Jan	Spirit 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 826€

Return flights