International travel can add diabetes challenges: time zones, unfamiliar food, different pharmacies, language barriers, vaccines, travel illness, heat, and longer flights.
Quick summary
Preparation should begin before departure, especially for people who use insulin, pumps, CGM, or medicines that can cause low blood sugar.
Key takeaways
- Bring more supplies than the exact travel days.
- Carry medicines and essential supplies with you.
- Ask about time-zone medicine timing before departure.
- Check destination health advice, vaccines, and access to care.
Before departure
- Ask your care team for a travel plan and medicine list.
- Pack extra insulin, medicines, devices, meter supplies, snacks, and low treatment.
- Check travel health advice for the destination.
- Learn how to get medical help at the destination.
- Keep prescriptions and supplies in original or clearly labeled packaging when possible.
During travel
Food, illness, walking, alcohol, sleep, and heat can all change glucose patterns. Check more often if the routine is very different.
If vomiting, diarrhea, fever, or dehydration occurs, follow sick-day instructions and seek care early if glucose, ketones, or symptoms are unsafe.
For longer trips, consider carrying a medicine list in the local language or a format that can be shown to clinicians or pharmacists. Do not assume the same insulin, device supplies, or medicine brand will be available abroad.
Practical takeaway
International travel with diabetes is safest when medicine timing, supplies, illness, and destination care are planned before the airport.
Safety note
This article is not a substitute for medical care. Seek urgent care for severe low blood sugar, ketones, vomiting, dehydration, chest pain, confusion, fever with severe illness, or symptoms that feel unsafe.
What to ask your care team
- How should I adjust medicines across time zones?
- What extra supplies should I bring?
- What is my plan for illness or lost supplies abroad?
Related reading
Source summary
- Tips for Traveling With Diabetes, Centers for Disease Control and Prevention. Patient guidance. Accessed June 5, 2026. Source
- Travelers with Chronic Illnesses, Centers for Disease Control and Prevention Travelers’ Health. Travel guidance. Accessed June 5, 2026. Source
- Insulin, Medicines, and Other Diabetes Treatments, National Institute of Diabetes and Digestive and Kidney Diseases. Patient guidance. Accessed June 5, 2026. Source
- Low Blood Sugar, Centers for Disease Control and Prevention. Patient guidance. Accessed June 5, 2026. Source