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

Return flights

03 Dec - 15 Dec	Spirit Airlines
06 Dec - 17 Dec	Spirit Airlines
01 Dec - 03 Dec	Spirit Airlines
05 Dec - 17 Dec	Spirit Airlines
03 Dec - 16 Dec	Turkish Airlines
02 Dec - 27 Jan	Delta
08 Dec - 12 Dec	Spirit Airlines
11 Dec - 14 Dec	Zipair
14 Dec - 28 Jan	Frontier Airlines
10 Dec - 16 Dec	Turkish Airlines
26 Dec - 11 Jan	Frontier Airlines
09 Dec - 31 Dec	Spirit Airlines
10 Dec - 31 Dec	Hawaiian Airlines
12 Dec - 14 Jan	Frontier Airlines
26 Dec - 09 Jan	Frontier Airlines
27 Dec - 08 Jan	Spirit Airlines
15 Dec - 09 Jan	Spirit Airlines
27 Dec - 02 Jan	Turkish Airlines
10 Dec - 11 Jan	Air France
21 Dec - 12 Jan	Frontier Airlines

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 $760

Return flights