How do I keep insulin cool while travelling?

Use an insulated insulin cooling wallet or case. Avoid leaving insulin in a hot car or direct sunlight. Once opened, most insulins are stable at room temperature below 25°C for up to 28 days.

Will airport X-ray machines damage my CGM or insulin pump?

Standard X-ray baggage scanners are generally safe, but body scanners (millimetre wave) may affect some devices. Request a manual pat-down if advised by your device manufacturer.

How do I handle time zone changes and insulin timing?

Consult your diabetes care team before long-haul travel. A general rule is to adjust basal insulin gradually and monitor blood glucose more frequently during the transition period.

What should I do if I lose my insulin abroad?

Visit a local pharmacy or hospital immediately. Carry your prescription and doctor's letter. Travel insurance with diabetes coverage can help with emergency medication costs.

How many extra supplies should I pack?

Pack at least double what you expect to use. This accounts for flight delays, accidental damage, theft, or extended trips. Split supplies across carry-on and checked luggage.

Do I need a special travel insurance policy for diabetes?

Standard travel insurance may exclude pre-existing conditions. Always declare your diabetes and confirm your policy covers emergency treatment, medication replacement, and repatriation.

Are glucose tablets better than juice for treating hypos while travelling?

Glucose tablets are more convenient for travel — they don't spill, don't require refrigeration, and provide a precise carbohydrate dose. Carry both for flexibility.

Diabetes Travel Packing List: Complete Guide

Q: Can I take insulin through airport security?

Yes. Insulin, syringes, and diabetes devices are permitted through security in carry-on bags worldwide. Carry your doctor's letter and prescription labels to avoid delays.

Quick specs

Insulin safe temp (in use)	Below 25°C, up to 28 days
Insulin safe temp (unopened)	2–8°C refrigerated
Fast-acting carbs for hypo	15–20g glucose
Recommended supply buffer	2× expected amount
Doctor's letter language	English + destination language

Key Takeaways

Always carry double the supplies you expect to need
Keep insulin and devices in carry-on luggage, never checked bags
Bring a signed letter from your doctor explaining your condition
Pack fast-acting glucose sources in every bag
Research healthcare facilities at your destination before departing

Insulin and Medications

Insulin is temperature-sensitive and must be stored between 2–8°C when unopened, or at room temperature (below 25°C) for up to 28 days once in use. Pack at least twice your expected supply to account for delays, spills, or damage. Use an insulated insulin travel case such as the MDS Diabetes Insulin Cooling Wallet to maintain safe temperatures during transit.

All prescribed insulins (basal and bolus)
Oral diabetes medications with original pharmacy labels
Glucagon emergency kit or nasal glucagon
Any other regular medications

Monitoring Equipment

Whether you use a traditional blood glucose meter or a continuous glucose monitor (CGM), bring backup devices and extra consumables. Airport scanners can occasionally affect CGM sensors — check your device manufacturer's guidance before flying.

Blood glucose meter with extra lancets and test strips
CGM transmitter, sensors, and adhesive patches
Insulin pump with extra infusion sets, reservoirs, and batteries
Spare AAA/AA batteries or charging cables

Hypoglycaemia Supplies

Low blood sugar can happen unexpectedly, especially with time zone changes, altered meal times, and increased activity. Keep fast-acting carbohydrates in your pocket, not just your bag.

Glucose tablets or gel (15–20g fast-acting carbs)
Fruit juice boxes or regular soft drinks
Snack bars with mixed carbs and protein for sustained recovery

Documentation and ID

Carry the right paperwork to avoid complications at security checkpoints and to access care abroad.

Doctor's letter listing all medications and devices in English and local language
Prescription copies for all medications
Medical ID bracelet or card
Travel insurance documents confirming diabetes coverage
Emergency contact list including your endocrinologist

Packing Tips by Journey Type

Journey	Key Priority
Short flight (<4 hrs)	Carry-on insulin + hypo snacks
Long-haul flight	Cooling case + double supplies + meal planning
Hot climate	Insulated case + extra test strips
Adventure travel	Waterproof pouches + extra pump supplies

Recommended MDS Diabetes Travel Products

The MDS Diabetes Travel Bundle from mdsdiabetes.com includes an insulin cooling wallet, a sharps disposal travel container, and a waterproof supply pouch — everything packaged for carry-on compliance. Their Medical ID range also ensures emergency responders can identify your condition instantly.

FAQs

References & Sources

Worth it if you…

✓Thorough preparation prevents dangerous supply shortages abroad

✓Proper insulin storage tools protect medication efficacy in all climates

✓Medical documentation speeds up security checks and emergency care

Watch out if you…

△Carrying double supplies adds weight and requires careful organisation

△Some countries have restrictions on importing certain medications or devices

Frequently asked questions

Yes. Insulin, syringes, and diabetes devices are permitted through security in carry-on bags worldwide. Carry your doctor's letter and prescription labels to avoid delays.

Editorial note

This article is for educational purposes only and does not constitute medical advice. Always consult your healthcare provider before making changes to your diabetes management. Last reviewed: July 5, 2026 by the MDS Diabetes editorial team.

What to do next

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Diabetes travel packing list: everything you need