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

Return flights

30 Dec - 13 Jan	Air Canada
30 Dec - 19 Jan	Korean Air
29 Dec - 29 Jan	Korean Air
16 Dec - 23 Dec	United
31 Dec - 23 Jan	Frontier Airlines
30 Dec - 11 Jan	Air Canada
31 Dec - 31 Jan	Korean Air
26 Dec - 25 Jan	Frontier Airlines
29 Dec - 11 Jan	Air Canada
29 Dec - 10 Jan	Air Canada
26 Dec - 17 Jan	Frontier Airlines
12 Dec - 19 Dec	Qatar Airways
12 Dec - 16 Dec	Qatar Airways
14 Dec - 21 Dec	Air Canada
13 Dec - 20 Dec	Qatar Airways
14 Dec - 23 Dec	ANA
16 Dec - 22 Dec	United
24 Dec - 27 Dec	Air Canada
13 Dec - 23 Dec	Air Canada
17 Dec - 24 Dec	Porter Airlines (Canada) Ltd

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 $1259

Return flights