Flying to Spain with insulin and medication

Can I bring insulin and medication on a plane to Spain?

Travellers carrying chronic medication to Spain should pack enough for the whole trip, keep medicines in their original packaging in hand luggage, and carry supporting documentation for needles, devices, and any controlled medicines. Insulin and other temperature-sensitive medicines belong in the cabin, not the hold, where they can freeze or be out of reach. Essential medicines, including insulin, are allowed through airport security even in quantities of liquid above the usual limit.

This guide covers what to pack and where, how to keep insulin safe in transit and in the Spanish heat, the documentation that smooths airport security, the stricter position for controlled medicines, and what to do if your medication runs out or is lost once you are in Spain. If you are unwell or have no insulin at all, treat it as urgent and seek in-person care or call 112.

The short answer

You can bring insulin and other prescription medication on a plane to Spain. Keep it in your hand luggage in its original packaging, carry enough for the whole trip plus a little spare, and bring documentation that shows it is yours.

The two things that catch people out are temperature and supply: insulin must not go in the hold where it can freeze, and Spanish pharmacies cannot simply hand over more insulin without a Spanish prescription if you run short.

Insulin and temperature-sensitive medicines

Insulin keeps best in a fridge before use and stays usable at room temperature for a limited period once in use. On a plane, the cabin is a controlled temperature; the hold is not, and it can drop below freezing. Frozen insulin should not be used, so it belongs in your cabin bag, ideally in an insulated pouch or a medical cool pack.

In the Spanish heat, the same logic applies on the ground. Keep insulin out of direct sun and away from hot car interiors, use a cool bag for day trips, and store it in a fridge where you are staying. If insulin has been exposed to extreme heat or has frozen, do not rely on it.

Needles, pens and devices

Needles, pen devices, and pumps are allowed in hand luggage when they are for your own medical use. Carrying a prescription or a short letter from your doctor that names the medicine and device makes security checks quicker and avoids questions about why you have needles in your bag.

Pack a sharps container or a safe way to store used needles, and keep devices with their original labelling so the contents are clear.

Liquids over 100ml and medical exemptions

The usual 100ml liquid limit in hand luggage does not apply to essential medicines. Insulin, liquid medicines, and cool packs needed to keep them stable are permitted in larger quantities when they are medically necessary.

Declare them at security, carry them separately so they are easy to screen, and have your documentation to hand. Rules are applied by the airport you fly from, so allow a little extra time at security.

Controlled medicines and the Schengen certificate

Some medicines are legally controlled, and these are treated more strictly when crossing borders. For travel within the Schengen area, which includes Spain, you may need a Schengen certificate issued in your home country before you travel, alongside your prescription.

If you take a controlled medicine, check the requirements well before departure. Our guide on travelling to Spain with medication covers documentation and customs in more detail.

If your medication runs out or is lost in Spain

Insulin is a prescription-only medicine in Spain and is not available over the counter, so a pharmacy cannot simply sell you more without a Spanish prescription. For adults established on a stable regimen, a repeat or continuation prescription can sometimes be issued after a clinical review, where it is safe and appropriate.

See getting a repeat insulin prescription in Spain or, for other medicines, what to do if you have lost your medication in Spain. If you have no insulin at all, are vomiting, or cannot manage your blood glucose, treat it as an emergency and call 112.

What we can and cannot help with

We can help adults physically in Spain with a repeat of insulin or other medication they already take, where there is recent evidence of the existing prescription and continuing it is clinically appropriate. A doctor reviews the request and issues a Spanish private prescription only where it is safe to do so.

We cannot help with airport or customs decisions, supply controlled medicines outside the proper process, start insulin or adjust a regimen in someone who is unstable, or help in an emergency. If the situation is urgent or needs hands-on care, contact local services or call 112.

Common questions

Can I take insulin through airport security?

Yes. Insulin and other essential medicines are allowed through airport security, including quantities of liquid over the usual 100ml limit when they are medically necessary. It helps to carry them separately, tell the security officer, and have supporting documentation such as a prescription or a letter from your doctor.

Should insulin go in hand luggage or checked luggage?

Hand luggage. The hold can freeze and is out of reach during the flight, both of which can damage insulin or leave you without it. Keep insulin and other essential medicines in your cabin bag, ideally in a cool pack, and split supplies across bags where possible.

What if I run out of insulin in Spain?

Insulin is a prescription-only medicine in Spain and is not sold over the counter. If you run short, you will usually need a Spanish prescription. If you are unwell, cannot manage your blood glucose, or have no insulin at all, treat it as urgent and seek in-person care or call 112.