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

Return flights

01 Dec - 16 Dec	Korean Air
01 Dec - 10 Dec	Japan Airlines
01 Dec - 08 Dec	Korean Air
04 Dec - 16 Dec	Air Canada
01 Dec - 13 Dec	Korean Air
04 Dec - 13 Dec	Air Canada
06 Dec - 29 Jan	Air Canada
06 Dec - 28 Jan	Air Canada
06 Dec - 25 Jan	Japan Airlines
31 Dec - 14 Jan	Korean Air
09 Dec - 16 Dec	Korean Air
03 Dec - 18 Dec	Korean Air
01 Dec - 12 Dec	Korean Air
28 Dec - 21 Jan	Delta
28 Dec - 17 Jan	Korean Air
08 Dec - 22 Dec	Spirit Airlines
31 Dec - 18 Jan	Air Canada
27 Dec - 27 Jan	Korean Air
11 Dec - 12 Jan	Porter Airlines (Canada) Ltd
09 Dec - 12 Jan	Delta

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 $883

Return flights