On the other end of the scale France is one of the cheapest countries to fall ill with the average claim at £3,199, according to data from All Clear Insurance.
Pre-existing medical conditions
Even when holidaymakers are buying insurance, often they are not declaring pre-existing medical conditions and are therefore not able to claim on the insurance if they fall ill.
In a study of more than 2,000 adults aged over 55, many were unaware of the kind of conditions which should be declared when taking out insurance. When asked which conditions they would leave off; 56% said high cholesterol, 55% wouldn't mention low blood pressure and 58% would leave asthma off the list.
When it comes to more serious illnesses, the research shows that 34% of those in the same age bracket do not see cancer or high blood pressure as something to tell an insurer if the illness is in remission or being controlled through medication.
But Mike Rutherford, All Clear Chairman, points out that insurers need to be told about all of these conditions or the policy may be unusable.
"Clearly the insurance industry has an enormous role to play in making travellers aware of what could invalidate their insurance in the event of a claim," said Rutherford.
Make sure your holiday doesn't end in disaster – get travel insurance
How to choose the right travel insurance
Choosing the right travel insurance is extremely important as without it you could end up paying hundreds or thousands as the data above has shown.
There are several different choices available, such as European or worldwide, single or annual, so you need to make sure you've got enough cover, and you've declared any pre-existing conditions.
It's also important to factor in everything you'll do on your trip. For example, if you're going skiing or snowboarding you'll need to make sure you have winter sports cover included in the policy.
You can find out more in our article: How to get top travel insurance for your holiday.