if this is a repost, my bad.
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1. go into the kirin tor room (huge steps, near the ally part of dal)
2. go up steps, go to the purple parlor portal
3. go outside and mount up
4. place your character in front of the steps entrace, BUT DONT GO IN!!
5. now, fly your character into the building, and put your mouse straight up, so your mount goes WAAAY up into the air. this will make it so when u drop, u land on the safe zone (pic below)
6. grats!
u can also use this to take the WG portal with the allies.. still spawns you at horde zone, but meh.. you can also sneak up all the way to the BG portals if u walk on the sides of the stairs..