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

Return flights

30 Oct - 06 Nov	Spirit Airlines
11 Oct - 18 Oct	Frontier Airlines
10 Oct - 14 Oct	Spirit Airlines
20 Oct - 27 Oct	Spirit Airlines
18 Oct - 26 Oct	Spirit Airlines
13 Oct - 17 Oct	Spirit Airlines
31 Oct - 07 Nov	Avianca
30 Oct - 06 Nov	United	direct
31 Oct - 07 Nov	United	direct
20 Oct - 27 Oct	United	direct
27 Oct - 17 Nov	Delta
15 Oct - 31 Oct	United	direct
11 Oct - 16 Oct	Avianca
18 Oct - 26 Oct	United	direct
11 Oct - 18 Oct	United	direct

Also check the deals for one-way flights from Houston to Buenos Aires in October.

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 October from 638€

Return flights