AirHint found the following cheapest return flights from Mexico City (MEX) to Bucharest (OTP) in December 2025 (see full year).
Return flights
| 01 Dec - 29 Dec | Viva | ||
| 14 Dec - 20 Dec | Volaris | ||
| 19 Dec - 26 Dec | Aeromexico |
Also check the deals for one-way flights from Mexico City to Bucharest in December.
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