Flying with Type 1 Diabetes: What Airport Security Is Actually Like

I'll be honest. I don't always do airport security by the book. I know you're not necessarily supposed to send an insulin pump or CGM through the full body scanner. But after years of international travel, I've settled into my own routine: I walk up, I go through the scanner, and I already know what's coming next.

My Omnipod pod shows up. My Dexcom sensor shows up. The agent asks me to lift my shirt. They swab me. Sometimes, and this still makes me laugh every single time, they almost grab the pod or sensor while doing the pat-down inspection, and I have to do a very calm, very quick "whoops please don't pull that off."

It's become completely routine. That's the thing nobody tells you before your first flight with Type 1: it's awkward and confusing the first time, and then it just becomes part of traveling. This guide is what I wish someone had told me before that first time.

Before You Even Get to the Scanner

The single most important thing you can do at airport security is say something before you step into anything. Not after the alarm goes off, not when the agent is already confused. Before screening begins.

Walk up to the TSA officer managing the lane and say: "I have Type 1 diabetes. I'm wearing an insulin pump and a CGM, both are attached to my body."

That's it. That sentence does everything. It tells the officer what to expect, gives them the context to route you correctly, and means you're not explaining yourself after something's already beeped. Most experienced TSA officers hear this and know exactly what to do. Less experienced ones will radio for a colleague who does.

You don't need a script beyond that. You don't need to explain how an Omnipod works or what a Dexcom is. Just name the devices and let the officer take it from there.

What Actually Happens at the Body Scanner

Here's the reality of going through the full body scanner with an Omnipod and Dexcom, which is what I do on almost every flight:

You step in, arms up, the scan takes about three seconds. You step out. The agent looks at the screen (a generic body outline with anomalies highlighted) and will almost always flag the area where your pod or sensor is sitting. If you have an Omnipod on your arm and a Dexcom on your stomach, you might get two flags. Both are going to prompt the same thing: a visual check and a swab.

The agent will ask you to lift or pull back your clothing so they can see the device. Do it, show them, explain briefly what it is. Then they'll run a swab over the device and your hands and put it through the explosives trace detection machine. This takes about 60 seconds. It almost always comes back clear. And then you're done.

Your Options at Security: Scanner, Metal Detector, or Pat-Down

You have more control over this process than most people realize. Here are your three options and what each one means for pump and CGM users:

Full Body Scanner (AIT)

This is what most airports default to now. It uses millimeter wave technology, not X-ray, and is what I go through routinely. Your devices will show up as anomalies on the image, which triggers the secondary check described above. Most pump manufacturers say this type of scanner is safe for their devices, but check your specific device documentation to be sure.

Metal Detector (WTMD)

The traditional walk-through arch. You can request this instead of the body scanner. Some pumps and CGMs will trigger the metal detector depending on their components; the Omnipod typically doesn't because it's mostly plastic, but results vary. If you set it off, you'll get a pat-down regardless.

Pat-Down

You can request a pat-down instead of either scanner. This is the option that avoids any electronic screening entirely. The officer will do a physical inspection of your body, including the areas where your devices are located. You can ask for this to be done in a private area if you prefer. This option takes the most time but gives you the most control.

Flying with an Omnipod Specifically

The Omnipod is tubeless, which makes it simpler in some ways. There's no tubing to explain, no dangling components. But the pod itself is a small plastic disc attached to your skin, and it can confuse agents who haven't seen one before.

A few things that are specific to Omnipod travel:

• Heat is the real enemy, not security. Airport security has never damaged any of my pods. But a pod left in a hot car, a sunny beach bag, or a checked bag in a summer cargo hold is a different story. Heat kills pods. Security doesn't.
• Pack significantly more pods than you think you need. Pod failures happen more often during travel: heat, activity, sweating, adhesion issues. I always bring more than my trip math suggests, especially for warm destinations.
• Bring skin prep wipes. They help pods and sensors stick through sweaty travel days. A pod that falls off mid-trip in a country where you can't easily replace it is a real problem.
• Know your manual injection backup. Before any international trip, make sure you know how to dose manually if your PDM fails or a pod fails and you can't get a replacement. Talk to your endocrinologist before departure.

Flying with a Dexcom Specifically

The Dexcom G6 sensor is small and low-profile but it will show up on body scanners. Same routine: it gets flagged, they swab it, you're on your way.

• Change your sensor 1–2 days before a long trip, not the morning of. New sensors have a warmup period and sometimes a rocky first day. You want a stable, settled sensor for travel day, not one that's still finding its footing when you're rushing through a connection.
• Bring extra sensors and your transmitter in your carry-on. Sensors can peel, especially in summer humidity or during long active travel days. Having a spare means a failed sensor is an inconvenience, not a crisis.
• Tape helps. Skin tape or adhesive patches over your Dexcom sensor keeps it in place through sweaty travel days, beach days, and long flights where you're sitting in one position for hours.
• Download the Dexcom app before you leave. Make sure your phone is set up and syncing before departure, not at the gate.

International Airports: What's Different

I've been through security in Spain, Austria, the UK, and several other countries with my Omnipod and Dexcom. The broad experience is similar to US airports: devices get flagged, you explain, you get swabbed. But a few things vary.

Agent familiarity is lower outside the US

TSA agents in major US airports see insulin pumps and CGMs frequently. At smaller international airports, you may encounter agents who genuinely don't know what an Omnipod is. Be patient, explain clearly, and if needed, ask for a supervisor. In my experience this has never been a serious problem, just slower.

Carry a doctor's letter

For international travel, a letter from your endocrinologist on official letterhead stating your diagnosis and the devices you use is worth carrying. I've rarely needed to show it at security, but customs in some countries may ask about your supplies, and having documentation makes that conversation short. Get it a few weeks before your trip.

Know the local emergency number

Before any international trip, look up the local emergency number, the nearest hospital to your accommodation, and whether your travel insurance covers medical care abroad. US domestic insurance rarely covers international emergencies. Travel health insurance is worth it for longer trips.

Managing Blood Sugar on the Plane

Getting through security is the complicated part. Once you're on the plane, it's mostly just staying on top of things.

• Keep glucose tablets in your seat pocket. Not your overhead bag, your seat pocket. A low at cruising altitude is not the time to ask someone to move luggage.
• Set a CGM alarm for the flight. Especially on long overnight flights or when crossing time zones. Jet lag can mask the symptoms of a low.
• Drink water constantly. Cabin air is extremely dry. Dehydration raises blood sugar and makes everything harder to manage.
• Be careful with airline food. Carb counts on airline meals are unknowable. Eat conservatively and correct if needed rather than front-loading a bolus on an uncertain meal.
• Walk the aisle on long flights. People with diabetes have elevated clotting risk during extended sitting. Every couple of hours, get up and walk.
• Tell a flight attendant early. At the start of the flight, mention to a flight attendant that you have Type 1 diabetes and might need help if you have a low. It takes 30 seconds and they'll know what to do if something comes up.

A Note on Stress

The first time you go through airport security with an insulin pump and CGM, it might feel like a lot. You're already managing a condition that requires constant attention, and now you're adding an unfamiliar process with strangers who may not understand your devices.

Here's what I can tell you after doing this more times than I can count across multiple continents: it gets boring fast. Not in a bad way, in the best possible way. It becomes just another step in getting to the gate. You know what's going to happen, you know what to say, and you move on.

The T1D community is full of people who travel constantly and manage this without drama. You will too.

Quick Reference: Airport Security with Type 1

• ☐ Declare devices before screening: "I have Type 1 diabetes, insulin pump and CGM on my body"
• ☐ Know your options: body scanner, metal detector, or pat-down
• ☐ Never put your pump through the bag X-ray conveyor belt
• ☐ Expect a swab test. It's normal, it takes 60 seconds
• ☐ Warn agents before they touch near your pod or sensor
• ☐ Carry a doctor's letter for international flights
• ☐ Allow 15–20 extra minutes for security
• ☐ Keep glucose tablets in your seat pocket, not your overhead bag
• ☐ Tell a flight attendant you have T1D at the start of the flight
• ☐ Set a CGM alarm before you fall asleep on overnight flights