So far this year alone, there have been 31,000,000 flights. https://www.airportia.com/flights-monitor/. So somewhere around 300,000,000 flights per decade.

If someone said an event happens “occasionally”, I would expect it to be significantly more frequent than 1/300,000,000.

Powerball lottery odds are 1 in 292 million. I wouldn’t say that I “occasionally” win the lottery when I buy a ticket!