FlyerTalk Evangelist
Join Date: Nov 2000
Location: Nashville -Past DL Plat, FO, WN-CP, various hotel programs
Programs: DL-MM, AA, SW w/companion,HiltonDiamond, Hyatt PLat, IHF Plat, Miles and Points Seeker
Posts: 11,072
You can just wear normal clothes on the plane. The plane and the airports are kept near the same temperature year round. The jetways are often cold or hot of course.
For some reason, folks think cruiseships, casinos, hotels, etc are colder or hotter based on where they are or time of year. Not.