I recall reports from the last year of Chicom mules carrying 2-3kg of bullion gold each from Singapore to puppetmasters in Mainland China. 20-30 people would board a commercial flight, hop to Singapore and back in the same day.
I wonder if mules operateed from Malaysia also.
If MH370 carried gold, this gold could have been used to pay for the clandestine strip to land somewhere.
From major airports like JFK....there’s probably daily flights with diamonds, gold, silver or such.....and if some nut got wind of a flight with a hundred million onboard....I could see a scenario where he kills the passengers....ditches the plane, and has some friend pick him up six days later.