You get the wings from Leonardo da vinci (4 o'clock, 1516 AD), when you return his notebook. You can find the notebook on a ledge at the Statue of Liberty (10 o'clock, 1882 AD).
The glider wings allow you to get the Viking armor that is atop the tall rock at 831 AD.
(see related question)
The notebook for Leonardo Da Vinci is at the Statue of Liberty (10 o'clock, 1882 AD) - go to the upper left side and jump hard left to the ledge. Take it to him at 1516 AD (4 o'clock on the time device. He will give you his glider wings.
(see related question)
you get it by the glider
Go to 1516 AD (4 o'clock on the time device) and return it to Leonardo Da Vinci. He will give you his Glider Wings.
When ever you want to!
If you "beat" the island, then the glider (a reward for returning the notebook) is already in your item bag.
The glider wings let you extend your jumps by slowing your rate of fall. They can be used to get the Peace Medal at 1516 AD and the (not required) Viking armor at 831 AD. (see related question)
When you give Lenord Da Vinci his notebook he will give you a glider.
It is just a costume, on the island at 831 AD (2 o'clock on the time device). The only way to get it is to use the Glider Wings from Leonardo Da Vinci (4 o'clock 1516 AD).
Except for "gliding" (glider wings on Time Tangled, balloons on Counterfeit), there is no way for your character to fly on other islands.
Use the glider you got from Leonardo da Vinci.
The notebook belongs to Leonardo Da Vinci, who is at 1516 AD (4 o'clock on the time device). In return for his notebook, he gives you the Glider Wings. (see related question)
It is at 831 AD (2 o'clock on the time device),on the island with the Vikings. It does not have any use in the game. It is only a costume. To get it you need the Glider Wings from Leonardo Da Vinci (4 o'clock, 1516 AD).
There is no winged horse on Time Tangled Island. There are Glider Wings, which you get from Leonardo da Vinci, but they are not really essential to the quest, because when you move his wooden platform, the Peace Medal under the bridge can be reached by jumping. What you definitely need the Glider Wings for is to get the Viking Armor at 831 AD. Go to the cave ledge and jump up, then glide right. Again, however, the armor is not part of the quest either, just a bonus costume.