FlyBoots

Set unbreaking percents.
Choose percent of getting enchant on an enchanting table.
Choose percent of lowering food or exp level. (If configured to).
Command to receive flying boots.
Configurable

Enchanting-Chance: 50 #Enchanting percent from 0 to 100 of getting the enchant when enchanting.

Mode: normal #Food,Exp,Normal

Food:
  Allow-Flight-When-No-Hunger: false
  Chance-of-lowering-foodlevel: 1
 
Exp:
  Chance-of-lowering-exp: 5 #Percent from 0 to 100 of lowering player exp when using the boots.

Normal:
  Do-Not-Break-Boots: false #If set to true boots will not break, but instead be moved to your inventory with 0 durability so you can repair them.
  Message: "&bYour flying boots almost broke!"
  Enchants:
    Unbreaking:
#Unbreaking has three levels, so here you can set the chance of the boots not decaying. So for example at unbreaking one you have a default value of 25%, so every time you move you will have 25% of not losing any durability on that movement. 0 means no unbreaking.
      0: 10
      1: 25
      2: 45
      3: 65

/flyboots

flyboots.help

/flyboots give

flyboots.give

/flyboots reload

flyboots.reload

/flyboots config

flyboots.config

/fly

flyboots.fly

/fly <player>

flyboots.fly.others

How to use?
You need to enchant diamond boots and get the enchantment/lore of Flight. (You need to enchant level 30) Once you get these boots, you just wear them and can fly as long as they don't break. (If boots don't have unbreaking, you will lose almost 1 durability per movement). You can choose in the config which fly boots mode you want. This can be Normal, Food, or Exp.
Normal: Boots decay while using them.
Food: Boots won't decay, but instead you will lose hunger.
Exp: Boots won't decay, but will take exp from you.

Video

Thanks to Player_Schark for making this awesome tutorial!