This is the 1036th most frequent Japanese word.
余裕
Room, surplus, composure.
余裕 is used here to indicate the speaker has a bit of flexibility or spare capacity despite being busy.
私は忙しいけれど、まだ少し余裕があります。
I am busy, but I still have some margin.
余裕 is used here to express lack of capability or bandwidth to address a problem.
彼には問題を解決する余裕がないようです。
It seems he doesn't have the leeway to solve the issue.
余裕 conveys that the speaker has achieved the financial flexibility or surplus to allow for a trip.