AirHint found the following cheapest return flights from Houston (HOU) to Buenos Aires (EZE) in January 2026 (see full year).

Return flights

31 Jan - 14 Feb	Spirit Airlines
18 Jan - 01 Feb	Avianca
18 Jan - 25 Jan	Spirit Airlines
14 Jan - 19 Jan	Spirit Airlines
16 Jan - 19 Jan	Frontier Airlines
31 Jan - 14 Feb	United	direct
28 Jan - 02 Feb	United
21 Jan - 03 Feb	United
18 Jan - 01 Feb	United	direct
16 Jan - 19 Jan	United	direct
18 Jan - 25 Jan	United	direct
14 Jan - 19 Jan	United	direct
23 Jan - 06 Feb	United

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

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 January from 724€

Return flights