Diabetes and Travel: How to plan, pack, and manage supplies

When traveling with diabetes by air, sea, rail, or road, it’s important to prepare for both the known and unknown to help avoid any surprises or high-risk situations.

Whether you’re a new or seasoned traveler, planning a trip can be both fun and stressful at the same time - especially if you’re traveling with diabetes. In addition to packing the right clothes and shoes and double-checking that you have everything you need to travel, you also need to bring your diabetes therapy supplies and manage your blood glucose on the go.  

While this may sound a bit overwhelming, you can manage what you need to do with some thoughtful planning and preparation. Here are some basic tips for traveling with diabetes to help you be well-prepared for your journey and time away from home.  

Double up on diabetes management supplies

• When traveling with insulin and other diabetes supplies, it’s important to determine how much you’ll need to bring on your trip.  
• As a general guideline, pack double the amount of insulin and other diabetes management supplies you need for the time you’ll be away. That means one week of travel equals two weeks of diabetes supplies.  
• Take double the testing supplies, medications, low blood sugar treatments, pump accessories, and other medical items you think you'll need. And if you use an insulin pump, pack a backup kit (including long-acting insulin and syringes or pens) as if you expect the pump to stop working on the first day.  
• If you're flying, keep your supplies in your carry-on baggage so you don't have to worry about it being delayed, lost, or exposed to freezing temperatures in the cargo hold.

For road trips, use an insulated cooling bag so your diabetes supplies won’t potentially overheat in your car. Extreme heat can ruin the stability of insulin and cause electronic malfunctions in devices like your pump or glucose meter.[1] Please also consult the manufacturer's instructions for your insulin and other devices.
 

Embrace your new time zone 

Depending on how far you go, the direction of travel, and how long you'll be visiting, your healthcare provider may want you to alter your therapy and check your blood glucose more frequently. So before you leave, speak to a member of your healthcare team about how to manage your blood sugar as you cross time zones — especially if you use insulin or an insulin pump.  

Jet lag doesn’t only influence your sleep, it can also disrupt your circadian rhythms, affecting how your body uses insulin, how you eat, and how well you can interpret your blood sugar levels. Try to pay extra close attention to your numbers during transitions.²

Bring your own snacks and emergency glucose

The availability of food can be inconsistent when you’re traveling. Airlines may not serve full meals or snacks without a fee, and you may experience delays. Roadside dining may not offer options that fit your diabetes diet, whereas cruise lines often have an overabundance of foods and drinks.  

That’s why packing a few (or a dozen, depending on how long and far you’re traveling) snacks, nuts, or fruit bars with predictable carb counts can come in handy.  

Crucial Safety Note: Keep a distinction between your "routine snacks" and your "fast-acting carbohydrates." Snacks like nuts or cheese contain fats that slow down sugar absorption. Always have a separate, highly accessible source of pure, fast-acting sugar (like glucose tablets, gels, or juice boxes) to treat low blood sugar immediately.

Pay attention to your blood sugar 

Traveling can often be disruptive to your regular routine. Walking an extra 20,000 steps a day, eating meals late at night, or changing your sleep schedule can impact your blood glucose levels in unpredictable ways.  

Before leaving for your trip, discuss your travel itinerary with your healthcare provider, including how to handle sudden spikes or dips in your blood sugar.  

Be open about your diabetes diagnosis

Tell airport security, travel companions, hosts, and anyone else who needs to know that you have diabetes. Let people know what low blood sugar levels look like for you and where you keep your emergency glucose.

A note from your doctor or a valid prescription can also be helpful to explain the extra syringes, insulin pens, infusion sets, medications, and sharps disposal containers in your bag.

While there are a lot of considerations, traveling with diabetes is still worth the extra planning.

Global travel restrictions, varying guidelines across countries, and airline regulations can complicate the journey when flying with diabetes. From security screening rules to supplies allowances, each aspect requires careful attention.  

Keep these tips in mind to help avoid any surprises at the airport or in the air.  

Diabetes and airport security

Navigating security rules can be difficult. If you're traveling by air with diabetes, you might face some challenges due to varying international travel regulations. Different countries and airlines have slightly different guidelines for travelers with diabetes, so it's best to do some research before you fly.^3,4,5

Check out the diabetes management options at your destination, along with insulin availability and local healthcare systems, just to be safe.

Regardless of your destination, it's crucial to check with your insulin pump and CGM manufacturer regarding airport security equipment compatibility. Inform security officers that you are wearing these medical devices before screening begins.

Scanner Safety: Many manufacturers state that insulin pumps and certain CGMs should not go through full-body scanners (Advanced Imaging Technology) or have spare supplies run through luggage X-ray machines, as the radiation can cause device malfunctions.

Your Rights: You have the right to request a visual inspection and a manual pat-down instead of walking through a full-body scanner or putting your backup devices through the X-ray belt.³

How to manage diabetes in the air

Here are a few tips to help manage your diabetes during your flight:⁶

• Bring plenty of snacks for the airport and on the plane. You never know when a flight may be delayed. Additionally, many flights only offer limited in-flight beverage service.
• Stay hydrated with non-alcoholic, caffeine-free drinks, and consider keeping juices or regular soft drinks nearby to help with sudden hypoglycemia symptoms.
• If there is an on-board meal, wait until you actually see the food cart coming down your aisle before you take any fast-acting mealtime insulin. Flight delays can happen even after boarding.
• Keep Bluetooth On: When putting your phone into "Airplane Mode," remember to go into your settings and turn Bluetooth back ON. Modern aviation rules permit this so that your CGM can continue sending data to your phone or receiver during the flight.
• Watch for Altitude Pressure Changes: Changes in cabin pressure during takeoff can cause tiny air bubbles to form in insulin pump cartridges, which can unintentionally deliver a tiny amount of extra insulin. Keep an eye on your numbers during ascent, and if you are highly insulin-sensitive, consider temporarily disconnecting your pump tubing during takeoff.
• Let the flight attendants know you have diabetes, especially if you're traveling alone.
• Check your blood sugar or view your CGM trends often to make sure the excitement, time zones, or changes in activity and eating aren't throwing off your levels.

There’s a good chance you already keep hard candy or fast-acting glucose in your car in case you have low blood sugar. If not, this is a great opportunity to find a safe, easily accessible spot for these items in your vehicle.

To prepare for longer car rides or road trips, here’s a checklist of items for your diabetes road kit that can be kept in your on-the-go bag.

Diabetes road kit:

• Emergency Low Treatments: Keep glucose tablets, gels, or juice boxes within arm's reach of the driver's seat.
• A nutritious, fairly substantial snack: Individually wrapped granola bars, dried fruit and nuts, or crackers with cheese can quickly provide much-needed complex carbohydrates once a low blood sugar has been corrected.
• Water: Drink plenty of water or other non-alcoholic or caffeine-free drinks before, during, and after your trip to keep yourself hydrated.
• A double batch of testing supplies and medications: If you're going to be away from home, bring along double the amount of everything you need. Alcohol swabs or moist towelettes have many uses but are especially handy for cleaning up a fingertip before testing.
• Sun, rain, and bug repellent: Diabetes can cause slower wound healing.⁷ If you're going to be outdoors, be sure to apply sunscreen and bug spray to avoid skin damage or infections.
• A well-charged phone and medical ID: You never know when an emergency will occur, so get in the habit of keeping your ID on you and your phone battery charged.  

Now that you have done your research on how to travel with diabetes and packed your snacks, medications, and supplies, you can relax and enjoy yourself. By being well-prepared, prioritizing your needs, and communicating openly about your diabetes, you can balance taking care of your health and enjoying your trip to the fullest.  

While these are helpful tips, it’s good to keep in mind that they may not cover everything you need to know. Before you go on a trip, it's always a good idea to check with your healthcare team to make sure you have everything you need. Safe travels!                 

Resources

^1. Heinemann, L., Braune, K., Carter, A., Zayani, A., & Krämer, L. A. (2021). Insulin Storage: A Critical Reappraisal. Journal of Diabetes Science and Technology, 15(1), 147-159. Available at: https://doi.org/10.1177/1932296819900258/ Accessed: June 30, 2026.
^2. Mason, I. C., Qian, J., Adler, G. K., & Scheer, F. A. J. L. (2020). Impact of circadian disruption on glucose metabolism: implications for type 2 diabetes. Diabetologia, 63(3), 462-472. Available at: https://doi.org/10.1007/s00125-019-05059-6/ Accessed: June 30, 2026.
^3. Transportation Security Administration (TSA). (2026). TSA Cares - Disabilities and Medical Conditions. U.S. Department of Homeland Security. Available at: https://www.tsa.gov/travel/tsa-cares/disabilities-and-medical-condition… Accessed: June 30, 2026.
^4. American Diabetes Association (ADA). (2025). Air Travel and Diabetes: What Can I Bring With Me on the Plane? Know Your Rights Portal. Available at: https://diabetes.org/tools-support/know-your-rights/what-can-i-bring-wi… Accessed: June 30, 2026.                                            ^5. European Commission. (2025). Aviation Security: Commission Implementing Regulation (EU) 2015/1998 (Consolidated Digital Library). EUR-Lex Access to European Union Law. Available at: http://data.europa.eu/eli/reg_impl/2015/1998/oj/ Accessed: June 30, 2026.
^6. Pavela, J., Suresh, R., Blue, R. S., Mathers, C. H., & Belalcazar, L. M. (2018). Management of Diabetes During Air Travel: A Systematic Literature Review of Current Recommendations and their Supporting Evidence. Endocrine Practice, 24(2), 205-219.
Available at: https://doi.org/10.4158/EP171954.RA/ Accessed: June 30, 2026.
^7. Spampinato, S. F., Caruso, G. I., De Pasquale, R., Sortino, M., & Merlo, S. (2020). The Treatment of Impaired Wound Healing in Diabetes: Looking among Old Drugs. Pharmaceuticals, 13(4), 60. Available at: https://doi.org/10.3390/ph13040060/ Accessed: June 30, 2026.