Jet fuel alone accounts for somewhere between 25 and 35 percent of airlines' costs. The next stop is higher ticket prices. It's already happening, to some degree. Several airlines, including Air Asia and Hong Kong Airlines, have explicitly said they're adding to their usual fuel surcharges.
You're hunched in a plastic chair, clutching your boarding pass, waiting for a flight that doesn't even depart until after midnight. Around you, the terminal looks like a strange in-between worldhalf asleep, half awake. You could've taken the 10 a.m. flight like a normal person. You could've slept in, had breakfast, and breezed through check-in. But you didn't. You took the red-eye.