In "Minecraft's" Creative or Spectator modes, you can fly by double-tapping the jump button, but in Survival mode, you'll need to find an Elytra.

With Minecraft slowly introducing more complex flying mobs, as well as the hard to acquire elytra, Mojang should consider implementing a tamable flying mob. Minecraft’s Flying Mobs Explained ...

This Minecraft mod insists that you're flying wrong in the sandbox game, and makes things a little bit more realistic thanks to physics ...

A Minecraft player builds an incredible Elytra racecourse that goes across land, sea, and sky to test their maneuverability while flying.