screen shot of the Flight Aware tracking of my Son's flight to Santiago Chile when he flew there for his mission. I showed the picture to my wife and she asked what it was and I said it was flight tracking for his Santiago flight. It was a screenshot from my gallery app - I didn't do any google searches or anything. Just looked at the picture and then said something to my wife out loud that included the words "flight to Santiago Chile".

Fast forward 12+ hours later, and I've had 2 separate ads today on cheap flights to Santiago Chile on American Airlines. Something I've never searched before.