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

Return flights

01 Dec - 23 Dec	Air Canada
03 Dec - 17 Dec	Air Canada
01 Dec - 09 Dec	Air Canada
05 Dec - 19 Dec	Air Canada
01 Dec - 10 Dec	Delta
05 Dec - 18 Dec	Air Canada
08 Dec - 12 Dec	Delta
03 Dec - 26 Dec	Delta
07 Dec - 30 Dec	Air Canada
07 Dec - 16 Dec	Air Canada
06 Dec - 25 Jan	Delta
28 Dec - 14 Jan	Delta
29 Dec - 13 Jan	Air Canada
28 Dec - 13 Jan	Delta
09 Dec - 12 Jan	Delta
28 Dec - 07 Jan	Delta
11 Dec - 12 Jan	Delta
15 Dec - 16 Jan	Air Canada
27 Dec - 13 Jan	Delta
08 Dec - 10 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 803€

Return flights