There are air evac fleets who are in service within the United States. As these people are non US citizens and have a medical necessity of being transferred to another post trauma facility , private air ambulance operations must be hired. Case patients have need of a medical staff and expert medical attention while they fly. Patients who cannot go by commercial airline services – because these people necessitate a medical staff or advanced life support obtain the service of medivac outfits. air ambulance chicago illinois are researched by the spouse of the patients with the insurance companies air ambulance list.