Traveling with diabetes is very doable with a little planning. The big wins are packing extra supplies, keeping everything in your carry-on, and knowing your rights at airport security. With Thanksgiving and the December holidays close, now is a good time to get ready.

Key takeaways

  • Pack roughly double the supplies you expect to use, split between two bags.
  • Keep insulin, sensors, pump supplies and fast-acting carbs in your carry-on, never in checked luggage.
  • Tell the security officer about your devices before screening starts.
  • Ask your diabetes care team how to handle time zone changes before you leave.

Build your packing list early

A common rule of thumb from diabetes educators is to bring twice what you think you need. One week away means two weeks of supplies. Delays, lost bags and extra-long days happen, and a spare is much easier to carry than to replace in a new city.

  • Medication and insulin in original pharmacy-labeled packaging, plus a copy of your prescriptions.
  • Glucose monitoring: spare CGM sensors, a backup meter, test strips, lancets and batteries.
  • Pump users: spare infusion sets, reservoirs or pods, and a plan for what you will do if the pump fails.
  • Low treatment: glucose tablets or another fast-acting carb, plus a few longer-lasting snacks.
  • Extras: medical ID, a phone charger and power bank, and your care team's contact details.

Split supplies between two bags (for example, you and a travel companion, or a personal item and a carry-on). If one bag goes missing, you still have a full set of essentials.

Carry-on, not checked

Insulin and other medication can be damaged by the extreme temperatures in a cargo hold, and checked bags can be delayed. The TSA lists CGMs, insulin pump supplies and glucose test kits as allowed items. It also says medically necessary liquids over the usual 3.4 oz limit are allowed but should be declared at the checkpoint. Pump supplies should be accompanied by insulin, and insulin should be clearly identified.

For keeping insulin cool, look for a small insulated travel pouch. Avoid placing insulin directly against ice or a frozen gel pack, and do not leave it in a hot car or in direct sun.

Getting through airport security

Per the TSA's published guidance, you should tell the officer about your insulin pump, CGM or other device before screening begins, and say where it is on your body. You can say it out loud or hand over the optional TSA notification card. The card is not required and does not exempt you from screening, but it can make the conversation smoother.

The TSA also states that you will not be required to remove medical devices attached to your body. Many travelers with a pump or CGM choose a pat-down instead of a body scanner, and that is your choice to make. Some manufacturers advise against certain scanners or X-ray screening, so read your own device's instructions before you fly and follow them. Never send a pump or sensor through an X-ray machine unless the maker says it is fine.

A few extra tips:

  • Arrive a little early so you are not rushing through screening.
  • Keep a printed or digital copy of your device guide in case an officer is unfamiliar with it.
  • If you have questions, TSA Cares can be contacted before your trip (the TSA website lists the current number and hours).

Time zones and long travel days

Crossing time zones can change when you need to take medication and eat. Eastbound days are shorter and westbound days are longer, which can affect how much insulin or medication you need. Do not guess. Talk to your doctor or diabetes care team before the trip, share your flight times, and ask for a written plan. If you use a pump, learn how to update its clock correctly.

Plan to check glucose more often than usual, especially during long flights, after a big change in routine and when you wake up in a new place. Sensor readings can be affected by dehydration, and travel often means less water, more sitting and unfamiliar food, so keep a bottle of water handy.

Food, activity and lows on the road

  • Carry snacks in case meals are late or delayed.
  • Walk the aisle or stretch on long flights and drives. See our guide to post-meal walks.
  • Be careful with alcohol and with very active sightseeing days, which can raise the risk of lows later. Our post on strength training with diabetes covers glucose and activity basics.
  • Wear medical ID and tell a travel companion what a low looks like and how to help.

If you are visiting another country, learn how to say "I have diabetes" and "sugar or juice, please" in the local language, and check how to get insulin or supplies there if something goes wrong. Also check whether your travel insurance covers pre-existing conditions.

Keep your data and routine handy

If you use a CGM, make sure your sensor app works on your phone while you are away and that sensor wear dates line up with your trip. A sensor that expires mid-trip is a good reason to replace it before you leave. If sensors have trouble sticking in warm or humid weather, see our tips on CGM adhesion. DiaFitus can help you log workouts and see glucose patterns while you move more on holiday, but it does not replace your CGM alarms or medical advice.

Before you go: a quick checklist

  1. See your care team and review a travel plan.
  2. Pack double supplies in carry-on bags, split in two.
  3. Check your device maker's screening guidance.
  4. Bring medical ID, prescriptions and emergency contacts.
  5. Pack low treatment and snacks within easy reach.

This article is educational and not medical advice. DiaFitus is not affiliated with the TSA or any device manufacturer mentioned. Always follow the instructions of your care team and device maker.