What Happens If You Get Sick on a Plane?

Tell the Flight Attendants Immediately

This is the single most important thing you can do if you start feeling sick on a plane. Don't tough it out. Don't sit there quietly hoping it passes. Press the call button and let the crew know what's going on.

Flight attendants are trained to handle medical situations. They can't diagnose you, but they can provide first aid, monitor your condition, and escalate the response if things get worse. The sooner they know, the more options they have to help you.

What the Crew Does First

When you tell a flight attendant you're feeling ill, here's the typical response:

• Assessment: They'll ask about your symptoms — nausea, chest pain, difficulty breathing, dizziness, etc.
• Basic care: Depending on your symptoms, they can offer ice packs, wet towels, ginger ale, water, blankets, or an airsickness bag.
• Seat change: If you need to lie down or need more space, they'll try to move you to an emptier row.
• Monitoring: They'll check on you regularly and keep the flight deck informed about your condition.

For straightforward nausea or motion sickness, this basic care is usually enough to get you through the flight.

What Medical Supplies Are on Board

Planes carry more medical equipment than most people realize. The FAA requires every commercial aircraft with 30+ seats to carry:

• First aid kits: Bandages, antiseptic, adhesive tape, burn treatment, motion sickness tablets, and basic medications
• Emergency medical kits: Stethoscope, blood pressure cuff, syringes, IV supplies, and prescription medications including epinephrine, atropine, dextrose, nitroglycerin, lidocaine, and diphenhydramine
• Automated External Defibrillator (AED): Required on all aircraft with 30+ passenger seats
• Supplemental oxygen: For passengers having difficulty breathing

Flight attendants can open and use the first aid kit. The emergency medical kit is typically reserved for use by medical professionals — a doctor, nurse, or paramedic on board.

"Is There a Doctor on Board?"

If your condition is serious, the crew will make a cabin announcement asking if any medical professionals are on the flight. This happens more often than you'd think — roughly 1 in every 604 flights has a medical event that requires some response.

Doctors, nurses, paramedics, and other medical professionals who volunteer are protected by the Aviation Medical Assistance Act of 1998. This federal Good Samaritan law shields them from liability as long as they act in good faith and aren't grossly negligent. They're under no legal obligation to help on U.S.-registered airlines, but most do.

The responding medical professional can access the emergency medical kit, take vitals, administer medications, and advise the captain on the severity of the situation.

Ground-Based Medical Support

Here's something most passengers don't know: the crew isn't making decisions alone. Most major airlines contract with ground-based medical consultation services like MedAire or STAT-MD.

Through satellite communication, the flight crew can connect with emergency physicians on the ground in real time. These doctors can:

• Help assess the patient's condition remotely
• Recommend treatments from the onboard medical kit
• Advise the captain on whether to divert the flight
• Coordinate with hospitals at the destination or diversion airport

This ground support means you're never truly without medical guidance, even over the middle of the ocean.

When Does a Flight Get Diverted?

Flight diversions for medical emergencies are actually pretty rare. Studies show only about 7% of in-flight medical events result in a diversion. The captain makes the final call, weighing several factors:

• Severity of the medical situation
• Time remaining to the original destination
• Proximity of alternate airports with medical facilities
• Advice from onboard medical professionals and ground-based doctors
• Weather and landing conditions at alternate airports

Conditions that commonly trigger diversions include suspected heart attacks, strokes, severe allergic reactions, seizures that won't stop, loss of consciousness, and serious breathing problems.

On domestic routes, the pilot can usually reach an alternate airport within 15 minutes. Over oceans, it can take significantly longer, which is why the onboard medical kit and ground consultation are so critical.

Common In-Flight Illnesses

Not all in-flight sickness is an emergency. The most common issues are:

• Nausea and vomiting: Motion sickness, turbulence, anxiety, or something you ate before boarding
• Ear pain: Pressure changes during ascent and descent, especially with congestion
• Lightheadedness or fainting: Low cabin pressure, dehydration, standing up too quickly
• Headaches: Dehydration, cabin pressure, and lower oxygen levels at altitude
• Gastrointestinal distress: Stress, unfamiliar food, or pre-existing conditions flaring up

The cabin environment itself works against you. Cabin pressure is equivalent to being at 6,000 to 8,000 feet elevation, humidity drops to around 10-20% (drier than most deserts), and the recycled air can feel stuffy. All of this can make minor symptoms feel worse.

What Happens After You Land

If your illness was serious enough to involve onboard medical treatment or ground consultation, the airline will usually have medical personnel waiting at the gate when you arrive. Paramedics can assess you on the jet bridge and transport you to a hospital if needed.

For less serious situations — you threw up a few times or had a bad headache — you'll deplane normally. If you're connecting to another flight and don't feel well enough to continue, talk to the airline's customer service desk. Most carriers will rebook you at no charge if you're visibly ill or have documentation from the crew about your in-flight medical event.

If the flight diverted specifically for your emergency, the airline will typically rebook you on the next available flight at no extra cost. However, any hospital bills at the diversion city are your responsibility. This is where travel insurance becomes invaluable, especially on international trips where your regular health insurance may not apply.

Special Concerns for Long-Haul Flights

Long flights amplify health risks. The longer you're in a pressurized cabin with dry air, the more dehydrated you get. Deep vein thrombosis (DVT) — blood clots in your legs — is a real concern on flights over 4 hours, especially if you're not moving around. Symptoms include swelling, pain, or warmth in one leg.

If you have a chronic condition like diabetes, heart disease, or respiratory issues, talk to your doctor before a long-haul flight. They may recommend adjusting medication timing, wearing compression socks, or taking other precautions specific to your situation.

How to Reduce Your Risk

• Stay hydrated. Drink water before and during the flight. The low humidity in the cabin dehydrates you faster than you realize.
• Skip the alcohol. Alcohol hits harder at altitude and worsens dehydration.
• Eat lightly. Heavy, greasy meals before flying are a recipe for nausea.
• Move around. On longer flights, walk the aisle periodically to keep your circulation going.
• Bring your medications. If you have a known condition, keep your meds in your carry-on, not checked luggage.
• Use the air vent. Pointing the overhead vent at your face can help with nausea and overheating.

Frequently Asked Questions