Please provide a link or citation - that sounds incredibly low for a charter from Hawaii to Nairobi.
all this travel discussion has been gone over in detail on one of the two long threads over a year ago...do you know what it cost for the first african airlift? do you know about buses and trains in africa,passenger ships, tramp steamers?
butter posted some air fares from hawaii in 1961.
here is a discssion not nearly as complete as the one on FR
http://boards.straightdope.com/sdmb/showthread.php?t=606447