Worst one for me was a business trip to Asia where I worked Friday, went home for a couple hours and then headed to the airport for a 1AM flight. 13 hours on the flight where I don't sleep at all, landed at my destination at 5AM local time. Had to then kill an entire day and pushed through till 10PM before going to bed. I think it was around 40 hours between beds.

When traveling between far time zones, I do my best to arrive at my destination at night, so I can immediately go to sleep. I can't really sleep on planes, so it's easier to force myself to stay awake for 24-30 hours and just sleep when I get there.

I traveled to India in 2018, which was a 12.5 hour time zone difference from where I lived at the time. I had my flight all scheduled to arrive back at home at night like I like. But my flight got cancelled due to a tropical storm. I ended up having the airline find me another flight that didn't have the layover where the tropical storm was, so I actually got home sooner... But now in the morning. I couldn't sleep on the plane no matter how hard I tried. So I arrived back at home at 10 AM, which felt like night time to my body. And this was after essentially going a whole day without sleep already. As soon as I got home I passed out and slept all day. Worst thing I could have done. I went pretty much a whole week of sleeping all day and laying in bed all night with my eyes wide open. It wasn't until day 7 back home that I started feeling somewhat normal again.

I also stay overnight and plan on sleeping during the flight. Except I actually sleep like a baby. I am usually having trouble staying awake for the dinner.

Last flight to Japan the plane was mostly empty, so all of my company we moved to empty rows, we each had 3 seats to ourselves and slept lying down like in a bed. Best flight ever. Also did the same in the return flight.