Cheapest return flights from Houston to Bangkok in September from $802

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

Return flights

25 Sep - 30 Sep Spirit Airlines
08 Sep - 15 Sep Spirit Airlines
18 Sep - 03 Oct Frontier Airlines
22 Sep - 24 Sep Spirit Airlines
22 Sep - 27 Sep Spirit Airlines
25 Sep - 28 Sep Frontier Airlines
11 Sep - 23 Sep Frontier Airlines
10 Sep - 18 Sep Delta
04 Sep - 17 Sep Delta
27 Sep - 11 Oct Spirit Airlines
07 Sep - 06 Oct Delta
10 Sep - 17 Sep ANA
09 Sep - 13 Sep Delta

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

Skyscanner

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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