Air Ambulance Service in the United States is governed by the Federal Aviation Authority. Air Ambulance companies must have state licenses to fly, and with that license they may fl anywhere in the world. The aircraft used by air ambulance companies range from tiny planes to lear jet style aircraft. It's important to compare oranges to oranges and apples to apples when getting price quotes. The cheapest price might not be the cheapest if your family has to take commercial flights. Some air craft such as Westwinds fly up to four passengers and have enclosed toilets, very few aircraft have this feature. I recommend getting prices from several companies as their discounted flights change daily, but go straight to a provider and avoid going to brokers. If you decide you want to check out air ambulance and costs click here Air Ambulance Costs