Flying with diabetes: insulin, pumps, CGMs and airport security

Count the time from leaving home to reaching your final address. A two-hour flight can mean ten hours away from home once you include the trip to the airport, check-in, security, waiting, a connection and transport after landing. You need access to medication, monitoring equipment and your usual hypo treatment throughout. Allow for delayed baggage and closed shops after a late arrival too.

Before you travel, discuss time zones, pump failure, gaps in readings and access to help at your destination with your diabetes care team. The CDC notes that changes in meal times, activity and travel can affect blood glucose, and recommends keeping supplies within easy reach. CDC: travelling with diabetes. Write down the plan so you do not have to reconstruct it from memory when you are tired.

Photograph the full names of every part of your system: the insulin pump, transmitter, sensor, glucose meter, pen medication and insulin. Similar cases can hold different device generations. Dexcom G6 and G7, for example, have different screening instructions, and guidance for a Pod does not necessarily cover the sensor paired with it. Check the complete model name because the brand alone is not specific enough.

Pack your main kit and enough spare supplies for the whole trip, including a delay. Adjust the quantity to any import restrictions. Keep insulin in your cabin baggage. The CDC advises against putting it in checked baggage because of the temperatures there. CDC: storage while travelling. Cabin bags can still be taken at the gate, so keep medication and essential equipment in a separate pouch that you can remove quickly.

Leave new needles and lancets in their packaging. Put used sharps in a purpose-made puncture-resistant container, never loose in a pocket or snack bag. Check how to dispose of them on the aircraft and at your destination. The container should fit in your bag without crushing the rest of your supplies.

Do not open sterile packs simply to save space. Keep medication separate from items that should not go through certain scanners, since different parts of the kit may need different screening methods. Write the contents of each pouch on a small card. You can then show staff the relevant part without emptying everything onto the inspection table.

Keep medication in its original labelled packaging. Carry a copy of your prescription and a document explaining why you need the equipment if your airline or destination requires one. NHS Fit for Travel notes that restrictions may also apply in transit countries and may limit how much medication you can carry. NHS: travelling with medicines. Passing security at your departure airport does not establish that you may import the medication into another country.

A useful medical letter includes the traveller's details, medication names and active ingredients, plus a list of treatment supplies such as syringes, needles, a glucose meter, sensors, a pump and cooling equipment. Ask for a version that staff can understand throughout the route, usually in English, and include any important device restrictions. Check official destination guidance for the required content and format. A screenshot of an electronic prescription is not a universal import permit.

When buying insurance, read the terms for diabetes, treatment abroad and replacement of damaged equipment. The headline cover amount does not give you those details. If you take a loaned backup device, note the return date and the supplier's contact details before you pack.

In the EU, essential liquid medicines may travel in containers larger than 100 ml, although security staff may ask you to prove that they are genuine. European Commission: information for air travellers. A medical exemption changes the liquid limit, not the need for screening. Check the rules that apply at every airport on your route.

Rules for ordinary liquids vary by airport. A connecting or return airport may use a different procedure. A higher liquid limit also says nothing about whether a particular sensor may go through that airport's baggage scanner.

Glucose tablets, glucose gel and juice are different product forms. If you need gel or a drink in a larger container for medical reasons, ask the airport how to present it at security. Keep your usual hypo treatment easy to reach and retain the packaging. Do not make your entire plan depend on finding a shop immediately after screening.

If you have been prescribed glucagon, take it in the correct packaging with its instructions and any required documents. Glucagon comes in different forms, so check the exact product, storage conditions and expiry date. A travel companion should know where it is and how to use it according to their prior training. This article does not replace that training.

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Pack each section separately so the rest of the kit stays within reach while one item is screened.

There is no single storage rule for every insulin product or package. An unopened product, a pen in use and a spare cartridge may each have different requirements. The NovoRapid product information, for example, gives separate instructions for Penfill, FlexPen, FlexTouch and PumpCart. Read the section for your exact product. EMA: NovoRapid product information. Do not use the temperature or storage time listed for another form of the medication.

The CDC recommends protecting insulin from extreme temperatures and direct contact with ice. CDC: medication temperature. Arrange the cartridges and insulation to suit both the case and the medication. A case sold as cooling does not always maintain refrigerator temperature. If its maker states a working time, check the test conditions and cooling-pack capacity as well.

Ask your accommodation where medication can be stored before you book, then inspect the space yourself when you arrive. A small minibar, a refrigerator controlled by the room's key card or a compartment beside an iced-over cooling element may not meet your product's requirements. If you are unsure about conditions during transport, ask a pharmacist or the manufacturer's appropriate support team whether the medication is still suitable to use. You cannot tell from the packaging alone.

Airport staff use the word "scanner" for several different machines. A walk-through metal detector works differently from an advanced imaging technology (AIT) body scanner, where you usually stand in a set position. X-ray and CT baggage scanners are different again. Keeping electronics inside a backpack does not mean that a screening method is safe for medical devices. Ask staff which machine they are using and show them the instructions for your model.

The table summarises manufacturer guidance for the listed models. It does not cover every device on the market. A spare sensor in its packaging may have different rules from a device worn on the body. If you use both a pump and a sensor, check each component's instructions. When the instructions do not cover a screening method or vary by region, ask the manufacturer before travelling and request suitable alternative screening at the airport.

There is a similar discrepancy for Omnipod 5. The UK user guide and a general Insulet article dated 18 March 2026 give different guidance; the article permits scanners for Pods and controllers. Insulet: travelling with diabetes. Until the manufacturer confirms the rules for your version, request alternative screening that follows the user guide. Do not apply Omnipod DASH guidance to Omnipod 5, or Pod guidance to Dexcom or Libre devices.

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If you do not know which scanner is in use, pause before screening and show staff the device instructions.

Before your bag goes on the belt, tell a security officer about your pump, sensor, spare supplies and anything that needs separate screening. Pack them so staff can inspect them without opening sterile packaging. Point out what you are wearing and what is inside the pouch. Staff can then deal with the whole kit before any spare devices enter a scanner.

Name the exact models because staff may not recognise them by sight. If the conversation takes time, ask for someone who can explain the available procedure. Do not send the bag through an unsuitable scanner simply to move through the queue faster.

Do not disconnect a pump or interrupt insulin delivery because of baggage guidance. Agree on a screening method that maintains treatment and protects the device. If the proposed procedure conflicts with the instructions, show staff the relevant section and ask for another option. Any change to treatment should follow the individual plan agreed with your diabetes care team.

Permission to take essential medication through security does not automatically include an extra bag beyond your fare allowance. Ryanair, for example, requires prior approval for additional medical equipment and describes a baggage waiver letter. Ryanair: Special Assistance. Tell the airline what the bag contains, its dimensions and which devices you plan to use during the flight. Toiletries and ordinary clothing remain subject to the standard baggage allowance.

Some airlines use a medical clearance process for particular health conditions and specialist equipment. Ask your own airline whether a form applies to you. Diabetes alone does not mean every passenger needs medical clearance, and some devices may still require prior approval. If another airline operates the flight, check the operating carrier's rules as well.

Gate checking means handing over a cabin bag at the gate so it travels outside the cabin. Remove insulin, glucose, your meter, sensors, essential electronics and documents before you give staff the bag. Check the airline's rules for batteries and power banks too. Keeping the whole kit in one removable pouch makes this much easier. Confirm before the trip that the pouch can stay with you in the cabin.

Before travelling, check how your phone, receiver and pump work on an aircraft. Dexcom describes using a phone in flight mode with Bluetooth switched on. Dexcom: in-flight guidance. Medtronic says the MiniMed 780G pump itself does not need to be put in flight mode. MiniMed 780G: air travel. Confirm device use with the airline and carry the instructions. Features with similar names may behave differently across systems.

Check readings without internet access before you leave and find out which features need a network. Local sensor readings and remote sharing with a family member are separate functions. If a caregiver stops receiving updates, the sensor itself has not necessarily failed. Test your setup before departure and agree when communication should be available. If your phone has a medical role, take the correct cable and the power source you planned to use.

Keep hypo treatment and monitoring equipment within reach during take-off and turbulence, while following cabin storage instructions. Do not rely on the meal service schedule. A pre-ordered special meal can make planning easier, but carry your own supply as well. If you feel unwell, tell a companion or the crew and follow your agreed care plan.

Decide what you will do if a sensor comes loose, the phone stops working or the pump needs to be replaced with another method. A spare pen is of little use without the correct needles and an agreed plan. The same applies to a glucose meter without matching strips. Before packing, lay out every item required for each task and tick it off your list.

During a long delay, check how much you have left and where you can get help. If a device fails, have its name, error message, serial number and the time of the incident ready for the manufacturer's support team. Seek medical help when the problem puts your health at risk; an airline complaint process cannot replace it. Do not change medication or settings on the strength of a similar-looking photo online.

Plan the return before you leave home, including airport requirements, cooling, documents and space for waste. Keep enough labelled packaging to identify the contents after you have used part of your supply. If you buy medication abroad, ask an appropriately qualified professional to confirm the active ingredient, concentration and form, as well as the rules for bringing it home. A familiar-looking brand name is not enough.

At your destination, unpack medication and equipment before your clothes. Check the storage space and packaging, then make sure you have power and enough supplies for the next day. For an active trip, prepare a smaller day kit and store the rest according to the instructions. Include the journey from your accommodation to each outing and back in your plan.