Distance
Range
noun
The distance that is detached from the distance is the distance and range. Just think of one part of the distance, stretch it out, and then look at it. It shows the distance and range!
きょり
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
年を取ったら長距離のフライトはきつくなるだろうね。
Long‐distance flights will be tough for me when I get old.