With new installs/new expansions, make sure to run the following:

/efm clear all

then go to /efm config and preload your faction's data!

Developed over many years, and still going, this addon adds enhancements to the flight master display.

I have taken up the challenge of updating this for TBC and squashing many bugs along the way for Illith.

The addon now does:

Adds an in-flight timer. This can be displayed as either text or a graphical bar.
Adds flight time estimates to the flight master screen.
Adds the ability to show a remote flight master screen. This screen does not allow flight, but will display all flight paths that you have ever seen, not just the ones for this character.
Adds the flight master locations to your zone map, colourised so you know if you know the flight point or not.
Calculates flight times as the addon runs and you take flights. Each additional flight over a specific path averages the flight times together to provide a median flight time estimate.
Adds a flight map overlay to your continent map window.
/efm report [party|raid|chan #|nick] will send your current flight time to your party/raid/channel/whisper!

Please report bugs and patches in github

Enhanced Flight Map