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

Return flights

10 Dec - 15 Dec	United
01 Dec - 29 Jan	Korean Air
08 Dec - 18 Dec	ANA
03 Dec - 19 Dec	Korean Air
05 Dec - 15 Dec	Korean Air
29 Dec - 28 Jan	ANA
11 Dec - 22 Dec	United
29 Dec - 11 Jan	ANA
08 Dec - 19 Dec	Delta
26 Dec - 21 Jan	Delta
10 Dec - 21 Dec	Air Canada
01 Dec - 01 Jan	Delta
29 Dec - 06 Jan	Korean Air
22 Dec - 05 Jan	Air Canada
13 Dec - 23 Dec	United
14 Dec - 16 Jan	Air Canada
28 Dec - 11 Jan	Korean Air
27 Dec - 07 Jan	Delta
17 Dec - 26 Dec	Delta
18 Dec - 30 Dec	Air Canada

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 $887

Return flights