Elytra

 Elytras are essential for flying in Minecraft. They are found in end ships.

 Before you start flying make sure you have a stack of fireworks and a tall place to jump off of. If you are in creative mode, float up high.

 To start flying jump off of your high place ( or floating spot ), and press the space bar then throw your fireworks. TIP: Don't look down or you will dive toward the ground. If you look up, you will fly upward.

 It can be hard to learn how to fly at first, but you will soon get the hang of it,

 If you are having trouble learning to fly, I have posted a video above.

 This video tells you, that you can use different types of firework rockets, but personally I prefer just a stack of regular firework rockets.