I had something like this happen once too. “Attention passengers, this is your captain speaking. I’m not feeling well. The first officer will be landing the pl

I had something like this happen once too. “Attention passengers, this is your captain speaking. I’m not feeling well. The first officer will be landing the plane as soon as possible.” I was quite surprised how quickly they can safely and smoothly lane a plane when there’s urgency. We were at the gate with paramedics waiting within 10-15 minutes from cruise altitude, and we still had to backtrack 100 miles or so to the airport. Overall delay was only about 2 hours which was mostly finding another pilot on short notice.