AirHint found the following cheapest return flights from Los Angeles (LAX) to Bangkok (BKK) in December 2025 (see full year).

Return flights

02 Dec - 09 Dec	United
01 Dec - 11 Dec	United
02 Dec - 15 Dec	United
03 Dec - 16 Dec	Korean Air
01 Dec - 14 Dec	Asiana Airlines
03 Dec - 14 Dec	Asiana Airlines
08 Dec - 20 Dec	Singapore Airlines
08 Dec - 21 Dec	Singapore Airlines
08 Dec - 22 Dec	Singapore Airlines
01 Dec - 01 Jan	Asiana Airlines
08 Dec - 11 Dec	Asiana Airlines
14 Dec - 15 Jan	ANA
26 Dec - 11 Jan	Asiana Airlines
24 Dec - 01 Jan	Hawaiian Airlines
26 Dec - 09 Jan	Asiana Airlines
08 Dec - 08 Jan	Singapore Airlines
31 Dec - 07 Jan	Asiana Airlines
22 Dec - 15 Jan	Korean Air
29 Dec - 07 Jan	Asiana Airlines
28 Dec - 07 Jan	Singapore Airlines

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Bangkok in December from 632€

Return flights