My worst flight experience was getting on the wrong plane. I fly a lot and I used to be on the road most of the time. Some countries I go to have small airports where people just walk to the plane. On this particular flight, I was in the South Pacific and the airport had 2 similar planes on the runway from the same airline, the Fokker F100, an old plane whose company went bankrupt decades ago. As I go to the boarding gate, the lady stationed there directed me to the wrong plane. I got on board and sat down and was surprised that we took off in a different direction. The airline in this country operates somewhat like a bus so though this particular flight was going to the same destination, it was needed to do five stops. What was meant to be a 90-minute flight became an 10-hour flight for me. To make matters worst, the airplane's air conditioning broke down after the second stop and on some of the legs of the flight, noisy kids or stinky people sat close to me.

A close second was when I took a small plane over some mountains in South America. The plane was a small Cessna 208 turboprop with an 8-seat configuration with a little room left at the back for cargo. The airline overbooked. I was one of the "extras" so they offloaded some of their cargo and installed a makeshift seat for me. The flight would have been ok if not for the fact that we were flying over the Andes and there was a lot of turbulence. The flight flew over some really beautiful scenery including some high waterfalls but I couldn't really appreciate since I was both scared and feeling giddy.