Given that we are probably heading into an economy where energy will get more and more expensive (at least temporarily, due to a potential oil crunch coming), not sure how flying will be an economical way of transport.
Gasoline consumption is not going up the way it used to, and there apparently is a whole lot more oil than a lot of people thought-- I'm guessing due to a combination of countries not providing correct numbers (it's a national security issue after all), new oilfield discoveries and new extraction techniques. Add in more efficient vehicles and alternative energy sources, and you quickly realize the worst that's going to happen is some gradually increased prices for products & services most closely tied to the current cost of fuel.