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

Return flights

03 Oct - 06 Oct	Frontier Airlines
05 Oct - 15 Oct	Spirit Airlines
18 Oct - 25 Oct	Frontier Airlines
06 Oct - 16 Oct	Spirit Airlines
04 Oct - 12 Oct	Spirit Airlines
04 Oct - 13 Oct	Spirit Airlines
03 Oct - 13 Oct	Spirit Airlines
02 Oct - 13 Oct	Spirit Airlines
02 Oct - 13 Oct	United	direct
06 Oct - 16 Oct	United	direct
20 Oct - 03 Nov	United	direct
21 Oct - 04 Nov	United	direct
22 Oct - 05 Nov	United	direct
28 Oct - 11 Nov	United	direct
30 Oct - 13 Nov	United	direct
23 Oct - 06 Nov	United	direct
27 Oct - 10 Nov	United	direct
29 Oct - 12 Nov	United	direct
19 Oct - 02 Nov	United
24 Oct - 07 Nov	United

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 727€

Return flights