There are family members that are not good to go on regular commercial airline services . That is sometimes because of the fact that these individuals require a first rate flight doctor and flight paramedic, so they employ fixed wing air ambulance crews. Also , airevac crews are a necessity sometimes precisely because these cases are in need of an ACLS medical technician. Many outpatients have need of ventilator support , or a emergency medical technician and a basic life support flight nurse ..... and therefore they are unable to go by the your usual big airline establishments. Many people who need to be transported to specific hospitals are really relieved when they find out that there are injured people who have a necessity to be transported or are not US citizens. Elderly men and women usually will lookup medevac services with a licensed insurance case worker.