The National Safety Council estimates that Americans have a 1-in-93 chance of dying in a motor vehicle crash, while deaths on airplanes are too rare to calculate the odds. Figures from the U.S.

A plane at Seattle-Tacoma International Airport hit another aircraft that was taxiing on the runway Wednesday morning, the Federal Aviation Administration has confirmed.

“The recent spike falls into the margins of unpredictability,” said Darren Straker, a former head of air accident ...