Originally Posted by
gglave
The act of purchasing a ticket on a flight that lands in Cuba demonstrates 'spending money' as a percentage of your ticket fee pays for the landing rights for the aircraft at a Cuban airport.
By this line of reasoning, a part of any ticket sold by any airline servicing Cuba is devoted to paying the fuel, some of which is bought in Cuba (for plane going there, but as revenue isn't this individualized...
You could have a point with airport tax, but not airport tax.