Travel insurance policies usually costs between 5 to 7 percent of your trip if they are comprehensive. The cost of the policy depends on how old you are and how much your trip costs. The cost of baggage-replacement and medical coverage are also factors that affect the price of the policy. You could also buy cheap insurance policy however the coverage may not be that extensive. A comprehensive travel insurance policy includes travel medical coverage, medical evacuation, and trip-cancellation or interruption insurance. These insurance are very useful and it is better not to omit them.