EDIT: My thread is a repost, didn't check before making it (though this one is a bit more in-depth) - Like the Wind the easy way
This is a rather minor exploit, but currently if you have Legion flying unlocked, you can complete the Like the Wind and The Magic of Flight world quests while on a flying mount.
With Like the Wind, simply fly down to Archmage Kesalon to start the quest/reveal the circles & traps in the air. You'll be given the vehicle bar with the regular spells you'd use, but can just fly to the end point to complete it.
For The Magic of Flight, fly into Kesalon's circle to start it, then fly to the object and right click it. This will dismount you, however the cast will continue while you fall and finish through, completing the quest.
***I did these in Suramar, but am assuming this would work the same when those two quests are active in other zones.