Cheapest return flights from Houston to Buenos Aires in December from $853

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

Return flights

23 Dec - 22 Jan Spirit Airlines
03 Dec - 10 Dec Spirit Airlines
09 Dec - 25 Dec Avianca
20 Dec - 11 Jan Spirit Airlines
20 Dec - 10 Jan Spirit Airlines
19 Dec - 10 Jan Spirit Airlines
23 Dec - 05 Jan Spirit Airlines
12 Dec - 04 Jan Frontier Airlines
16 Dec - 04 Jan Spirit Airlines
18 Dec - 04 Jan Avianca
21 Dec - 03 Jan Spirit Airlines
22 Dec - 27 Dec Aeromexico

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

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