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

Return flights

18 May - 25 May	Frontier Airlines
20 May - 27 May	Spirit Airlines
17 May - 24 May	Spirit Airlines
14 May - 21 May	Spirit Airlines
15 May - 22 May	Spirit Airlines
18 May - 25 May	United	direct
14 May - 21 May	United	direct
20 May - 27 May	United	direct
15 May - 22 May	United	direct
17 May - 24 May	United	direct

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

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 May from 542€

Return flights