AirHint found the following cheapest return flights from Houston (HOU) to Buenos Aires (AEP) in April 2026 (see full year).
Return flights
| 01 Apr - 07 Apr | Spirit Airlines | ||
| 06 Apr - 21 Apr | Spirit Airlines | ||
| 03 Apr - 12 Apr | Avianca | ||
| 26 Apr - 06 May | Air Canada |
Also check the deals for one-way flights from Houston to Buenos Aires in April.
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