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

Return flights

13 Aug - 20 Aug	Spirit Airlines
11 Aug - 18 Aug	Spirit Airlines
10 Aug - 17 Aug	Spirit Airlines
29 Aug - 12 Sep	Spirit Airlines
07 Aug - 14 Aug	Avianca
08 Aug - 15 Aug	Avianca
22 Aug - 31 Aug	Spirit Airlines
26 Aug - 06 Sep	Spirit Airlines
31 Aug - 14 Sep	United
24 Aug - 20 Sep	United	direct
27 Aug - 10 Sep	United	direct
28 Aug - 11 Sep	United	direct
30 Aug - 13 Sep	United	direct
29 Aug - 12 Sep	United	direct

Also check the deals for one-way flights from Houston to Buenos Aires 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 Buenos Aires in August from 670€

Return flights