Suramar Flying Exploits (Patreon)

The quest "Ley Race" in Suramar allows you to ride a panther which puts you into vehicle mode. If you ride into Suramar city on the panther and dismount on a teleporter (any one of them) something very weird and spectacular happens. 

Secondly, the teleporters themselves can be glitched to fly in offline mode. Simply use a teleporter with your character and activate lag7 or other lagging method. The optimum time for lag is about 12 seconds - less and you will return to your normal state, more and you will disconnect. You should now be a glowing ball of blue energy and able to fly. around Suramar.  

You can actually fly anywhere in the Broken Isles using this technique but you are limited to run speed, so it will take a while.