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

Return flights

23 Oct - 01 Nov	Spirit Airlines
13 Oct - 17 Oct	Avianca
18 Oct - 28 Oct	Spirit Airlines
13 Oct - 27 Oct	United	direct
15 Oct - 29 Oct	United	direct
02 Oct - 16 Oct	United	direct
09 Oct - 23 Oct	United	direct
20 Oct - 03 Nov	United	direct
21 Oct - 04 Nov	United	direct
23 Oct - 06 Nov	United	direct
28 Oct - 11 Nov	United	direct
29 Oct - 12 Nov	United	direct
30 Oct - 13 Nov	United	direct
14 Oct - 28 Oct	United	direct
16 Oct - 30 Oct	United	direct
06 Oct - 20 Oct	United	direct
08 Oct - 22 Oct	United	direct
27 Oct - 10 Nov	United	direct
23 Oct - 01 Nov	United	direct
24 Oct - 07 Nov	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 $754

Return flights