Case patients that hire medivac crews have a necessity to be transported and are for emergency situations. As you may not know , private air ambulance operations must be hired because they have a medical necessity to be transferred to a more suitable facility and/or are non US citizens. The cases are in need of an IV monitor and care for narcotics — and accordingly they do not want to go by public airline establishments. In the case that common people are not able to be brought by common airliners . This generally is because these people are specified as being not in a non-critical circumstance, there always are services who exist . Medevac crews usually can be discovered by customers with the search engines.