This is right on many levels however there are major exceptions. The problem often isn't that the goods are not available in a disaster area so much as that the

This is right on many levels however there are major exceptions. The problem often isn't that the goods are not available in a disaster area so much as that the people on the ground are poorly informed where to find relief and how to prepare. Also it encourages situations similar to ticket scalping, where an adequate but limited supply is bought up by a small group of profiteers before a disaster and re-sold at high prices. In the case of the airlines it is likely that the situation you are proposing is happening. Airlines diverting planes and running them empty to provide more available and higher cost transportation to evacuees. However the free market CAN encourage some truly amoral and economically inefficient behavior in edge cases like natural disasters.