AirHint found the following cheapest return flights from Mexico City (MEX) to Hanoi (HAN) in December 2025 (see full year).
Return flights
| 27 Dec - 20 Jan | Viva | ||
| 15 Dec - 22 Dec | Hainan Airlines | ||
| 18 Dec - 08 Jan | Hainan Airlines | ||
| 26 Dec - 06 Jan | Hainan Airlines | ||
| 14 Dec - 21 Dec | Volaris |
Also check the deals for one-way flights from Mexico City to Hanoi in December.
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