Flight Unlimited II is the second game of the Flight Unlimited series of general aviation flight simulators created by Looking Glass Studios, acclaimed for their sophisticated physics and pioneering gameplay features. It was released in 1997. The game was preceded by Flight Unlimited and followed by Flight Unlimited III.

Unlike the first game, which was released in versions for Windows and DOS, it was developed for Windows 95 only and requires 3d accelerator hardware. The simulation eschews the original game's focus on aerobatics, in favour of creating an immersive civilian flight environment. This is achieved by the photo-realistic 3D mesh terrain, real-time air traffic control communications and large depth of non-player-controlled air traffic, features unrivalled at the time of release. A series of flight lessons covers basic flight manoeuvres. Support for IFR flying and approach vectoring is included. Flight challenges provide "missions".

There are 6 flyable planes; there are also many other aircraft controlled by the computer, ranging from the flyable ones (except the Fokker), to larger corporate jets, passenger jets, military transports, and (off-duty) fighter craft. These aircraft fly on their own flightpaths around the map and can be the focus of view of the player (it is best that the player's own craft is not airborne during this!).

The game is played in the region of the San Francisco Bay Area, with approximately 13,400 square nautical miles, or 46,000 square kilometers of area covered, with textures derived from black and white USGS aerial photographs taken in 1993, which were then colourised. Most landforms such as mountains, hills, valleys, and other changes in land height are modelled from geographical data on the region.