AirHint found the following cheapest return flights from Houston (IAH) to Ho Chi Minh City (SGN) in August 2025 (see full year).

Return flights

12 Aug - 05 Sep	Frontier Airlines
10 Aug - 24 Aug	Frontier Airlines
10 Aug - 31 Aug	Frontier Airlines
10 Aug - 17 Aug	Frontier Airlines
18 Aug - 23 Sep	Spirit Airlines
18 Aug - 09 Sep	Spirit Airlines
11 Aug - 16 Aug	Spirit Airlines
12 Aug - 02 Sep	Spirit Airlines
17 Aug - 16 Sep	Spirit Airlines
25 Aug - 01 Sep	Hawaiian Airlines
19 Aug - 26 Aug	ANA
26 Aug - 02 Sep	ANA
11 Aug - 08 Sep	ANA
11 Aug - 11 Sep	United
09 Aug - 23 Aug	Frontier Airlines
16 Aug - 17 Sep	Hawaiian Airlines
08 Aug - 18 Aug	Spirit Airlines
02 Aug - 16 Aug	Spirit Airlines
08 Aug - 21 Aug	Frontier Airlines
15 Aug - 30 Aug	United

Also check the deals for one-way flights from Houston to Ho Chi Minh City 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 Ho Chi Minh City in August from $852

Return flights