AirHint found the following cheapest return flights from Hermosillo (HMO) to Buenos Aires (AEP) in December 2025 (see full year).
Return flights
| 04 Dec - 15 Jan | Aeromexico | ||
| 03 Dec - 15 Jan | Volaris | ||
| 30 Dec - 06 Jan | Volaris |
Also check the deals for one-way flights from Hermosillo to Buenos Aires in December.
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