World of Warcraft What level do you have to be to get a mount and how do you get one

You can learn to ride mounts at level 20. To learn the training required, go to your race's home city (ie Stormwind for humans, Sen'Jin Village for Trolls) and talk to the riding trainer. It will cost you about 1 gold.

To buy the mount, talk to the mount vendor that should be right next to the trainer, they are cheap.

You can learn higher levels as you level. Level 40 for Epic Riding, 60 for Flying, and 70 for Epic Flight. At level 77 you can learn Cold Weather Flying, allowing you to ride flying mounts in Northrend. In the coming expansion, Cataclysm, you will be allowed to fly in the old world.