" Because the year has 8,760 hours, this average mortality prorates to 0.000001 or 1 × 10–6 deaths per person per hour of living. This means that the average additional chance of dying while flying is just 5/1,000th of the risk of simply being alive. Smoking risks are 100 times as high; ditto for driving in a car. In short, flying has never been safer. "

― Vaclav Smil , Numbers Don't Lie: 71 Things You Need to Know About the World