After reaching the late stage of Qi Cultivation, cultivators can fly with the aid of a sword.
Foundation Building Cultivators can fly with their sword for longer periods, but their speed is limited.
Upon reaching the Golden Elixir stage, their speed drastically increases, comparable to an airplane.
This refers to their personal flying speed; if it were an attack's speed, it would be much faster.
Finally, at the Deifying stage, their flying speed becomes incredibly fast, leaving no trace behind.
However, even when reaching the Void Refinement stage, they still need to fly themselves, although their speed is astonishingly fast, and they might be barely visible to the naked eye before they reach their destination.
It may seem like they are teleporting.
But in fact, they are still flying.
As long as they are flying, it will inevitably take some time.
Void Refiners control battlefields with a range of up to thousands of miles, mainly relying on their Nascent Spirits.