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

Return flights

02 Dec - 12 Dec	Turkish Airlines
03 Dec - 23 Dec	Turkish Airlines
08 Dec - 12 Dec	Turkish Airlines
07 Dec - 19 Dec	Turkish Airlines
03 Dec - 15 Dec	Turkish Airlines
02 Dec - 27 Jan	ANA
10 Dec - 23 Dec	Spirit Airlines
27 Dec - 11 Jan	Alaska Airlines
25 Dec - 07 Jan	IndiGo
26 Dec - 06 Jan	IndiGo
18 Dec - 25 Dec	Zipair
15 Dec - 30 Dec	Alaska Airlines
22 Dec - 07 Jan	IndiGo
17 Dec - 30 Dec	Turkish Airlines
11 Dec - 09 Jan	Turkish Airlines
25 Dec - 12 Jan	EVA Air
20 Dec - 02 Jan	Zipair
19 Dec - 03 Jan	Spirit Airlines
03 Dec - 07 Jan	ANA

Also check the deals for one-way flights from Houston 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 Houston to Bangkok in December from $870

Return flights