TSA Guidelines for Continuous Glucose Monitors & Diabetes Supplies (2026)

If you're searching for the current TSA guidelines for continuous glucose monitors in 2026, here's the short answer: CGMs are fully allowed through airport security, worn on your body, and TSA officers cannot require you to remove them. Flying with diabetes means packing a second layer of logistics on top of an already complex process.

The good news: TSA rules for diabetes supplies are clear and in your favor. People with diabetes have explicit exemptions from many standard liquid and security rules. The process is manageable when you know what to expect.

This guide covers every TSA rule you need, how to handle airport security with a pump or CGM, what absolutely must stay in your carry-on, and how to make the whole process as smooth as possible.

TSA Rules for Diabetes Supplies: The Quick Reference

Here is a full breakdown of what TSA allows. The short version: almost everything diabetes-related is permitted in your carry-on, with specific exemptions that make the standard liquid rules mostly irrelevant for you.

The Liquid Rule Exemption, What It Actually Means for You

Standard TSA rules say liquids in carry-ons must be 3.4 oz or less and fit in a single quart-sized bag. This rule does not apply to medically necessary diabetes supplies.

The following are explicitly exempt:

• Insulin in any form or quantity
• Other injectable diabetes medications (GLP-1 agonists like Ozempic, Mounjaro, etc.)
• Juice boxes, cake gel, and other liquids for treating hypoglycemia
• Liquid medications for diabetes management

These items must be declared separately at the checkpoint, do not put them in your standard quart-sized liquids bag. Instead, keep them in a dedicated medical supplies pouch or bag that you can remove and present separately.

Flying with an Insulin Pump

Insulin pumps are one of the most common sources of airport security confusion, and most of it is unnecessary. Here is exactly what you need to know.

You Can Keep Your Pump On

You do not need to remove or disconnect your insulin pump to go through airport security. Notify the TSA officer that you are wearing an insulin pump before screening begins. They will then determine whether a metal detector, body scanner, or pat-down is appropriate.

Body Scanners vs. Metal Detectors vs. Pat-Downs

• Metal detectors: Most pump manufacturers say their devices can safely pass through metal detectors. However, you may set off the alarm, be ready to explain your pump.
• Body scanners (AIT): TSA's body scanners use millimeter wave technology, not X-ray, and pump manufacturers generally say these are safe. However, you have the right to request a pat-down instead if you prefer not to go through.
• Pat-down: Always an option. Request it before screening begins. The officer will do a physical inspection of your pump, which may include a swab test for explosive residue.

Altitude and Air Pressure

Some pump users notice small air bubbles forming in their tubing during ascent due to cabin pressure changes. This is a known phenomenon with tubed pumps. Check your tubing on the way up and remove any visible bubbles before reconnecting. Contact your pump manufacturer for device-specific guidance, this varies by model.

Flying with a CGM (Continuous Glucose Monitor)

CGMs are fully allowed through airport security. The process is similar to the pump:

• You can wear your CGM through the metal detector or body scanner.
• Notify the TSA officer that you are wearing a medical device on your body.
• You have the right to request a pat-down instead of the body scanner.
• Extra sensors, transmitters, and receivers in your bag go through the X-ray with your other carry-on items, this is fine.

What Must Stay in Your Carry-On, No Exceptions

Checked baggage is not temperature-controlled. Cargo holds can reach extreme heat in summer and freezing temperatures in winter. Pressure is also less regulated than in the cabin. This makes checked baggage genuinely dangerous for diabetes supplies.

Always keep in your carry-on:

• All insulin (vials, pens, pump cartridges)
• Your insulin pump and spare supplies
• CGM sensors, transmitter, and receiver
• Blood glucose meter and test strips
• Glucagon kit
• Fast-acting glucose (tablets, juice, gel)
• All other medications

Think of your carry-on as your medical kit. If your checked bag is lost, which happens, you want to be able to manage your diabetes completely independently of whatever is in that lost bag.

What to Say to TSA Officers

You do not need a script, but having a clear, calm opener makes the whole process faster.

Before the belt: "I have Type 1 diabetes and I'm carrying medical supplies including insulin, an insulin pump, and a CGM. I'd like to request a hand inspection of my medical liquids and a pat-down for my devices if that's okay."

That single sentence tells the officer everything they need to know and gives them a clear path forward. Most will direct you to a lane and it's done in a few minutes.

• Never hide your supplies, declare everything upfront
• Keep supplies in a clearly labeled, dedicated bag
• Have pharmacy labels visible on medications
• Bring a doctor's letter for international flights or large quantities
• Allow extra time, security with a pump or CGM can take 5–10 minutes longer

International Flights: What Changes

Flying internationally adds layers that domestic travel doesn't have. Here is what to know:

Other Countries Have Different Rules

TSA rules apply to US airports. When departing from a foreign country, security rules may be different. Some countries are stricter about syringes and injectable medications. A letter from your doctor, on official letterhead, stating your diagnosis and the supplies you need, is highly recommended for any international trip.

Bring Prescription Documentation

Carry printed prescriptions for all medications and devices, ideally matching your passport name. This is especially important in countries with stricter pharmaceutical regulations. International customs may inspect your supplies, and having documentation prevents delays.

Research Local Emergency Resources

Before flying internationally, know the name of the insulin brand you use in the destination country, formulations and concentration (U-100 vs. U-40) can differ. Identify the nearest hospital or clinic to your accommodation. Know the local emergency number.

Time Zone Shifts Begin on the Plane

Long international flights that cross many time zones can start affecting your insulin schedule mid-flight. Talk to your endocrinologist before departure about how to handle insulin timing during the flight itself, not just after landing.

On the Plane: Managing Diabetes During the Flight

Getting through security is the stressful part. The flight itself just requires some planning.

• Keep glucose tablets in your seat pocket, not just in your overhead bag. A low at 35,000 feet is not the time to ask someone to move.
• Check your CGM before eating airline food. Carb counts on airline meals are impossible to know exactly, eat conservatively and correct if needed.
• Drink water throughout the flight. Cabin air is very dry. Dehydration raises blood sugar and makes everything harder.
• Walk the aisle every 1–2 hours on long flights. People with diabetes have elevated risk of blood clots during extended sitting.
• Avoid eating just because food is offered. Airline schedules push food at odd times, eat based on your blood sugar and insulin plan, not the cart timing.
• Set a CGM alarm during any long flight, especially if crossing time zones. Jet lag can mask the symptoms of a low.

Before Your Flight: A Preparation Checklist

• ☐ Pack all diabetes supplies in carry-on, not checked luggage
• ☐ Pack at least 2x the supplies you expect to need
• ☐ Keep pharmacy labels visible on all medications
• ☐ Carry a doctor's letter (essential for international, helpful for domestic)
• ☐ Bring a dedicated medical supplies bag for easy security inspection
• ☐ Put glucose tablets in a pocket or easy-to-reach spot in your bag
• ☐ Change CGM sensor 1–2 days before departure
• ☐ Charge all pump and CGM devices fully before leaving
• ☐ Pack backup charging cables and batteries
• ☐ Download your CGM app and pump app on your phone before the trip
• ☐ Enroll in TSA Cares if you want assistance at the checkpoint
• ☐ Allow extra time at the airport, at least 30 extra minutes