Will i fit in plane seat


I am currently 24 stone 8. About 340 lb and 5ft 11. I'm lucky in that I carry my weight everywhere and wear UK 26-28 clothes.

I am travelling twice soon on easyjet (18 inch seats) and another on a 17inch seat. I am terrified I will be kicked off.

I have been on a plane before but I was about 1 stone lighter but i did previously fit on Ryanair with an extender.

Does anyone have anything to ease my worry. I can't sleep at night!