HELP MY PLAYER IS STUCK ON : Flight path from stormwind to Twillight Highlands

I flew once from stormwind to twillight and when i arrived at twillight one mount bugged and kept going up and down. After a while it took me to the destitation but now everytime i log in , whatever i do before i log off, IT KEEPS SPAWNING ME ON THE BUGGED MOUNT GOING UP AND DOWN PLEASE HELP ME
I can't press usntuck cause i'm in flight, i can't use hearthstone i can't do anything except wait for the bugged mount to arrive at TwHighlands and then start my game session. And then i log off and then lather rinse repeat. PLEASE, HELP ME

Player Name : Fratzoeides

From the website go into My Account>Services>Select Realm>Select Character>Set Currency:Free>Character Unstuck