This provides some great advice -
https://www.diabetes.org.uk/guide-to-diabetes/life-with-diabetes/travel
My top tips would be
- make sure you have travel insurance and they are aware of your diabetes. They may charge more to cover diabetes but, in my mind this is the thing most likely to go wrong.
- take at least twice as much of everything than you think you may need. You may lose or damage something or you may end up staying longer than planned.
- carry ALL diabetes supplies in your hand luggage. Checked in luggage may get lost and the hold temperature may not be suitable for insulin. Some airlines allow you to carry a second medical hand luggage. I prefer not to have the hassle of extra bags.
- if you are not already using reusable pens, ask to change. A spare pen and cartridges take up far less space in your luggage than multiple single use pens (and they are more robust and better for the environment)
- get a letter from your diabetes consultant/DSN (not GP - they tend to charge for letters) to say you need to carry all your gubbins. Make sure the letter is not for a specific date so it can be reused. In 100s of flights, I have only needed my letter twice but I still carry it for insurance
- if you are traveling somewhere warm, Frio "cases" are really handy to keep you insulin cool. I was advised not to use them when flying as they can appear like gelignite when they have been soaked in water and security are nervous about this.
- don't worry about carrying needles. They are too small to be noticed on the x-rays. Airport security have never asked about them ... or my insulin pens. I use a water bottle as my sharps container when away and empty this when I get home.
- have a fantastic trip