I'm planning a trip next month to a neighboring country and just realized I will hit 1 million kilometres of flying during my flight there. I've kept a spreadsheet of my travel from when I first moved to the US and hadn't flown much yet recording all flights I've ever been on. A professor in an environmental studies class noted he didn't have a car but had flown as far as the moon and back (I think that is what he said) and so wondered if he was hypocritical and I wondered how much I'd flown. I use a piece of software called anAtlas to compute the distances. It's a long way to go to match George Clooney's character :)
Yes, I didn't fly anywhere until I was 18 years old.