Reaching Mexico City from Belarus in less than 12 hours is highly challenging due to the geographic distance and current travel logistics, including the lack of direct flights. However, theoretically, here’s how you might attempt this:

1. Departure from Minsk National Airport (MSQ):
   • Minsk is the largest international airport in Belarus. To maximize travel time, you would need to book a private jet or a high-speed charter flight directly from Minsk to an international hub close to Mexico.
2. Flight Route Considerations:
   • Ideal Connections: The most direct flight path would be across the North Atlantic, passing over Europe and the United States.
   • Possible Stops: A direct or near-direct flight could connect you through major airports like London Heathrow (LHR), Paris Charles de Gaulle (CDG), or New York City (JFK) with minimal layover time.
3. Private Jet or Charter Flight:
   • To accomplish this within 12 hours, a private jet or long-haul charter flight would be necessary. These flights typically fly at higher altitudes, reducing flight times. For example:
     • Minsk to London: Around 3 hours by private jet.
     • London to Mexico City: Approximately 11 hours by commercial flight, but on a high-speed charter, you could trim that to around 9-10 hours.
4. Maximizing Efficiency:
   • Layover Minimization: With a private jet or high-speed charter, you could skip lengthy layovers that commercial flights would require.
   • Travel Time Optimizations: A private jet might trim total travel time significantly by cutting out unnecessary wait times and optimizing refueling stops, aiming to cover the trip in under 12 hours.

In a practical scenario, this would still be extremely difficult with current aviation speeds, as the total flight duration from Belarus to Mexico City, even with ideal connections, typically takes about 16-20 hours.