Gakai’s Flight Table Mod adds to Minecraft a Flight Block that lets user take on the skies, as in Creative mode, and flying all around. The basis of this mod is using three varied types of fuels to enable the flying ability over a determined range, to give the feeling of Creative mode flying. Some of the materials gives better flight range for the table. Always in ON position, the table will flip off preventing users from fly if you place a redstone signal upon it.
On a nice note, you won’t fall to the Earth and die if you happen to move outside of the flight table’s range. Well, you will fall, but you won’t take any fall damage because of it, so you don’t have to worry about dying. Just fly to your heart’s content and when you do fall, make note of how far you are away from the table. Gakai’s Flight Table mod doesn’t really do anything else besides allow the user to fly outside of Creative mode. But that’s still a big deal. If you’ve ever wanted to fly around while playing on Hardcore mode, you know how useful this mod could be.
Of course, being able to simply leap up and fly away from danger might take some of the excitement and fun out of playing on Hardcore mode in the first place. It’s really a matter of personal preference whether you use Gakai’s Flight Table in such a manner or not. Crafting the table requires some obsidian, diamonds and a redstone lamp. You can also craft special fuel for the table by combining feathers with redstone. Vanilla feathers will work for fuel too, but they have the lowest range of all the fuel types.
for Minecraft 1.8
for Minecraft 1.7.10
Credit: Gakai – Original Thread on Curse