Cheapest return flights from Houston to Buenos Aires in December from $772

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

Return flights

06 Dec - 13 Dec Spirit Airlines
10 Dec - 18 Dec Spirit Airlines
15 Dec - 15 Jan Spirit Airlines
18 Dec - 10 Jan Volaris El Salvador
26 Dec - 02 Jan Volaris
16 Dec - 04 Jan LATAM Airlines Group
18 Dec - 08 Jan Avianca
18 Dec - 04 Jan Avianca
21 Dec - 09 Jan Air Canada

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

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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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