Abstract: An apparatus is provided. The apparatus receives information that describes a current state of the aircraft. The current state affects range of the aircraft from a current position of the aircraft. The apparatus predicts a current range of the aircraft from the information. The current range indicates range of the aircraft in any direction from the current position. The apparatus also determines candidate airports within the current range of the aircraft, and predicts remaining fuel on board after landing at respective ones of the candidate airports. The apparatus further selects an airport from those of the candidate airports at which the aircraft is predicted to have a positive amount of the remaining fuel on board as predicted, and presents the current range and the airport to a user for landing the aircraft at the airport.