Inside an Air Ambulance: How Medical Flights Work

Most medical flights leave a hospital where the patient cannot or should not stay, sometimes because the care is unavailable locally, more often because the insurer or family wants them home, and end at one that has accepted them in writing. Callers ask three things: can the patient move, how soon, what it costs.

The first call collects six facts

The desk will not quote until it has all six:

• Where the patient is now, down to hospital and ward, and where they need to end up
• Diagnosis and current treatment, including whether they are intubated, ventilated or on infusions
• Body weight and mobility, which decide the stretcher and the loading method
• Who is paying: an insurer, an assistance company, an employer or the family
• Whether a receiving hospital has actually accepted the patient
• The patient’s passport and immigration status: passports expire in hospital drawers, visas overstay during a long admission, and some countries require a police clearance after an accident

Hospitals accept patients, not brokers, and nothing departs without a named consultant and a confirmed bed. Quoting, checking which fitted aircraft are free and opening permits run while the bed is found.

The medical assessment decides everything else

The operator’s medical director reads the notes and usually calls the treating doctor. A pneumothorax may need a chest drain before anyone boards. Holds of 24 to 72 hours are routine and need two signatures, the treating team willing to discharge and the flight physician willing to accept, and the desk chases both rather than overruling either.

Crew and equipment

The medical crew is matched to the patient: a flight physician and a critical care nurse on most cases, two nurses or a nurse and a critical care paramedic on lighter ones, two pilots up front. Family can usually travel, but that is one seat on a light jet with a stretcher fitted, sometimes none, two or three on a Challenger or Global, settled when the aircraft is chosen since weight costs payload and range.

The medical fit follows a certified layout: stretcher base, transport ventilator, a monitor covering ECG, oxygen saturation, blood pressure and end-tidal CO2, infusion pumps, suction, a defibrillator and drugs. Every device must be certified for airborne use, secured against turbulence and battery-powered for the sector plus both ground legs. Oxygen is calculated like fuel, on flight time, ground time and reserve; a ventilated patient on a high oxygen fraction can push a case onto a larger aircraft or add a stop. The better operators hold CAMTS or EURAMI accreditation, which audits crew qualification, equipment and clinical protocols, while the Argus and Wyvern safety ratings say nothing clinical. It is a quality mark, not a licence, and capable operators do without it.

What an 8,000 ft cabin does to a patient

A business jet at 41,000 ft keeps its cabin around 6,000 to 8,000 ft. For a healthy passenger that is unremarkable.

The first consequence is oxygen. At an 8,000 ft cabin a healthy adult’s blood oxygen saturation drifts to roughly 90 percent, and someone with damaged lungs or a recent cardiac event starts lower with less margin.

The second is gas expansion. Trapped air expands by about a third between sea level and an 8,000 ft cabin, which matters for an untreated pneumothorax, a bowel obstruction, air left in the skull after neurosurgery, recent eye surgery, and the cuff on an endotracheal tube, often filled with saline for that reason.

The workaround is to fly lower, cruising in the high twenties so the cabin sits near sea level. It costs fuel, range and time. Some aircraft hold a low cabin by design: a Global 7500 keeps around 2,900 ft at normal cruise levels, a Gulfstream G650 stays under 5,000 ft.

Aircraft that carry a stretcher

An air ambulance is an ordinary business jet with a certified stretcher base, medical oxygen and medical power installed, and a typical operator holds two or three such airframes of a type, so the plan is built around which of them is free.

Light and midsize jets do most of the work. The Learjet 35, 45 and 60 have been the workhorses for decades: narrow cabins, the stretcher loaded through the main airstair door, suited to two to four hour sectors. A Citation XLS or Latitude gives a flat floor and an easier door. A Challenger 604 or 605 lets the crew reach both sides of the stretcher and flies Bahrain (OBBI) to London Luton (EGGW) nonstop with family aboard. Intercontinental cases take a Global 6000 or a Gulfstream: Bangkok Don Mueang (VTBD), where the medevac handling sits, to Western Europe in one hop, though westbound in winter it may need a stop.

Bed to bed, and the two ground ambulances

The flight is one leg of the transfer. It starts at the bedside with a handover from the ward team, then a road ambulance to the departure airport. With the handler’s agreement, arranged in advance, that ambulance drives onto the apron and the patient is loaded at the aircraft steps. Ramp access is a permission, not a given, and immigration and customs still clear the patient at both ends, usually at the aircraft, sometimes in the terminal. A second ambulance meets the aircraft, and the crew hands over in person at the receiving hospital. The patient arrives with a discharge summary, drug chart, imaging on disc, blood results, and a translation where the hospitals share no language.

Medical escort or dedicated air ambulance

A stable patient who can sit up, or lie in a business class flat bed, can fly on a scheduled airline with a nurse or doctor escorting. Oxygen is arranged with the carrier in advance, and the airline’s medical department clears the case on a MEDIF form from the treating physician.

The trade-offs are real. Scheduled routings mean connections and long hours in the cabin. The cabin altitude problem does not go away. Most carriers refuse a ventilated patient outright. A stretcher on a commercial aircraft takes out six to nine economy seats and has to be booked days ahead. A dedicated air ambulance earns its place when the patient is ventilated, unstable, likely to deteriorate, or somewhere with no useful airline service.

Who pays, and how the money moves

A medical charter is priced as a whole mission, not a seat: aircraft type and hours flown, both positioning legs, since the fitted airframe may be hours away, the medical crew, oxygen and consumables, permits and handling, and both ground ambulances.

Most repatriations are paid by a travel insurer or an assistance company, on a guarantee of payment issued straight to the operator, so the family pays nothing up front and claims nothing back. What counts as medically necessary, and whether repatriation home is covered at all, differs by policy, so an insured case starts with the case manager confirming cover in writing.

Where the family is paying, the money moves before the aircraft does. Operators want the mission cleared in advance by bank transfer against a signed charter agreement and hold the aircraft until funds land. Cards are rarely an option, and a Friday evening or cross-currency transfer costs a working day.

Permits and crew visas

Fit-to-fly documentation and overflight permits run alongside everything else and rarely hold a case up. Visas for the medical crew are the item that catches cases out: in parts of the Gulf and West Africa a crew visa takes three to five working days, longer than the overflight clearance itself.

Realistic timelines

Nobody should give you a guaranteed departure time on a first call, and the delay is rarely the jet or anything the operator controls. Almost always it is the receiving bed, the payment guarantee, or the sending hospital’s own account: in several countries the ward will not discharge until the local bill is settled, so establish on day one who is clearing it.

Permits and night curfews add hours in the Gulf and parts of Africa. Crew duty runs from report, not from take-off, and a case is mostly ground time: the positioning leg, waiting for the ward to release the patient, two road transfers. A two-hour sector at the end of a long day can still run the crew out of hours, so the operator wants a realistic bedside-ready time. Within Europe an aircraft can often move within hours of clearance and a guarantee; a long-haul case may need a second crew or a rest stop, turning a same-night departure into next-morning.

As a broker, AeroJet Me sources the aircraft and the accredited operator. We coordinate the ground ambulances and the paperwork, and stay with the case until the receiving team signs for the patient. The clinical calls, fit to fly included, sit with the operator’s medical director.

Have the six facts above ready before you call, and check the passport first: it is the one nobody looks at until the day.