In your quest to hit level 60 in World of Warcraft: Shadowlands, you might be getting tired of hoofing it everywhere on foot. Although we don’t have a definitive answer on how to take to the skies, we can try and piece it together based on previous expansions, along with Blizzard’s few details regarding flight in Shadowlands.
Right now, we don’t know how flying will unlock in the Shadowlands expansion. We know that it will have something to do with building renown in your chosen covenant. This means, first and foremost, you need to hit level 60. Once this happens, you can explore your options with each of the four covenants — Kyrian, Necrolord, Night Fae, or Venthyr — and decide where your character would be the best fit.
After committing to a covenant (or leaving them and returning, provided you can put up with the shame), you can begin to build your Renown level. This will happen naturally as you perform tasks in your home zone with your chosen covenant, such as world quests and dungeons that take place in the same area.
Getting Renown to a certain level might eventually fulfill a similar requirement for the Pathfinder achievements that we went through for Warlords of Draenor and Legion. Those rules are now gone thanks to the Shadowlands pre-patch, and you are free to fly throughout both of those expansions as long as you are trained with Expert riding. Any Battle for Azeroth zones, however, remain under the same rules for Pathfinder.
The best thing to do while you wait for flying to become an option in Shadowlands is to keep playing and carving out your spot with your covenant. The more Renown you have by the time flying is announced, the closer you will likely be to meeting the requirements.