Some international airlines offer feeder services from US cities that connect with the international flights. These are called add-ons. Sometimes we arrange domestic air feeder service for the entire group. Sometimes it is an individual request. The additional charges vary. Group leaders are given the cost of domestic add-ons, if available. Anyone who would like to purchase a domestic add-on must indicate so on the registration form and purchases will not be made until the cost has been communicated to and accepted by you.