When I travel for work, I almost always have to wear suit/tie during the day. Because I like to pack light, on the plane I wear whatever my primary (after work hours) casual pieces for the week will be. I unpack when I get to the hotel, and my suits are almost always good to go the next morning when I head to the office. The shirts are generally a bit more wrinkled in the arms, but my jacket hides that. Since I am almost always cold in office buildings, I tend to keep on my suit jackets during the day.
Of course, sometimes I will need to fly in and go straight to the office. On those days, I wear my suit - complete with tie - during the flight. My second suit and casual pieces are in the bag.
No one asked, but this is my travel bag. I am generally out of town for the entire work week (Sunday afternoon flight out, Friday afternoon flight home). People love this bag. I get compliments on it all the time.
https://www.brooksbrothers.com/Footb...efault,pd.html