The Skylift is an elusive helicopter found in only one mission near the end of the game. During The Final Mission, you will fly it while transporting some stuff around.

Currently there seems to be no way to find it outside of this mission. Before finishing up the mission, it may be possible to save the helicopter at the Trevor Philips Enterprises airfield, however this has been reported to have mixed results.

For other helicopters cars, check out Vehicles.

Obtaining

Fortunately, there is one way of flying it. Open the GTA V creator and go on either Deathmatch creator or Capture creator. Next, go to a place of water and place a Marquis boat. Then, press X on PlayStation or A on XBox over the Marquis to "magically" turn it into a Skylift. Then you can place the Skylift and fly it. Unfortunately, though, you can't use the magnet and it is more difficult to use than other helicopters.