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

Return flights

03 Dec - 10 Dec	Delta
07 Dec - 24 Dec	Delta
03 Dec - 09 Dec	Delta
05 Dec - 15 Dec	Frontier Airlines
03 Dec - 06 Dec	Delta
05 Dec - 14 Dec	Korean Air
03 Dec - 26 Dec	Delta
02 Dec - 09 Dec	Delta
31 Dec - 14 Jan	Delta
01 Dec - 21 Dec	Delta
06 Dec - 16 Dec	Delta
28 Dec - 14 Jan	Korean Air
29 Dec - 13 Jan	Delta
28 Dec - 19 Jan	Korean Air
30 Dec - 30 Jan	Spirit Airlines
30 Dec - 12 Jan	Delta
29 Dec - 12 Jan	Delta
25 Dec - 15 Jan	Korean Air
23 Dec - 16 Jan	Frontier Airlines
22 Dec - 20 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 738€

Return flights