One in Every 212 Flights Has a Medical Emergency. Here’s What Happens Next

Medical emergencies in the air are far more common than most passengers assume. A Duke Health study published in JAMA in September 2025 found that one in every 212 flights involved a medical emergency, based on 77,790 events from January 2022 to December 2023 across 84 airlines.

Most of these incidents end quietly. About 8 percent of flights with an emergency resulted in the patient being taken to a hospital after landing, and just 1.7 percent led to a diversion. There is no official rule on when a plane must divert; the decision rests with the pilot, usually in consultation with ground-based medical support.

Passengers who step in to help have legal cover. Under the Aviation Medical Assistance Act of 1998, volunteer helpers are protected from liability except in cases of gross negligence or willful misconduct, which is meant to encourage doctors and nurses to respond when a crew member calls for assistance.

Regulation is also in motion. In August 2026 the FAA proposed giving airlines more flexibility over which emergency medical supplies they must carry, though according to AFAR, citing Reuters, no requirement has changed yet. Travelers with serious medical conditions should still carry their own medications and documentation in a carry-on.

Sources: AFAR