You may need a visa to pass through the united kingdom in transit (on your way to some other country). All you need to do as a means to find access to your visa is an on-line connection and a valid passport. You are not likely to get to incorporate a payment as the Transit Visa is at no cost. In addition, the state permits people from other African countries to come with no need to apply Kenyan VISA. You have to make your exit through precisely the same port. If you want to receive a visa on arrival, make certain you've got the proper quantity of cash (US dollars) with you as change might not be available.