Ilidža is a spa town and a municipality located in Sarajevo Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina. It has a total population of 66,730 with 63,528 in Ilidža itself, and is a chief suburb of Sarajevo and de facto its neighborhood. It is best known for the Vrelo Bosne spring, as well as the natural environment of its surroundings and historical tradition dating back to Neolithic times. Sarajevo International Airport is located nearby.