Hello,
it's great that this mechanic for showing how long a character will fly persists in the form of an addon from someone else when blizzard hasn't put this into the game as a standard yet. (originally I had another adon that did almost the same thing)

I noticed a few mistakes.

1. When I fly a certain route, after landing, the time is not updated by the value I actually flew.
2. because the time is not updated to the time of the actual flight length of that route, it often shows an incorrect estimated time, so it happens that the character is still flying but the timer is already at zero or has not reached zero and the character is at the destination.