A revised suggestion of Hong Kong - Brazil air route suggestion is made after reading comments on the 1st edition of the air route.
This new air route would have routing of Hong Kong -> Los Angeles -> Rio De Janeiro -> Sao Paolo -> Los Angeles -> Hong Kong, having frequency of 1 flight per week, operated by Cathay Pacific & VARIG.
Such routing allows more passengers per flight while not causing unfairness to passengers going to either Rio De Janeiro or Sao Paolo.
If passenger amount allows, then there would be a route of Hong Kong -> Los Angeles -> Sao Paolo -> Rio De Janeiro -> Los Angeles -> Hong Kong, so to provide 2 flights per week service to the 2 Brazilian cities.