Aircraft fly curved routes due to the earth's curvature and jet streams. Flight paths prioritize safety, time, and fuel efficiency. Jet streams can save time on flights, but also cause turbulence. https://simpleflying.com Why Aircraft Don't Fly In A Straight Line From Origin To Destination
Has he never put the route tracker on a flight?
We're being dismantled by some of the most ignorant least curious people alive who are unable to do a basic fucking internet search. This is the first thing when you Google do planes fly in a straight line