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

Return flights

21 Aug - 25 Aug	Delta
20 Aug - 25 Aug	Delta
25 Aug - 16 Sep	Delta
25 Aug - 15 Sep	Delta
05 Aug - 25 Sep	Delta
24 Aug - 03 Sep	Delta
28 Aug - 01 Sep	Delta
09 Aug - 25 Aug	Delta
10 Aug - 25 Aug	Delta
31 Aug - 05 Sep	Delta
21 Aug - 05 Sep	United
12 Aug - 29 Aug	Spirit Airlines
22 Aug - 29 Aug	United
22 Aug - 30 Aug	United
07 Aug - 21 Aug	Spirit Airlines
08 Aug - 12 Aug	Delta
03 Aug - 30 Aug	United

Also check the deals for one-way flights from Houston to Bangkok in August.

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 August from 746€

Return flights