Closing a Visual Flight Rules (VFR) flight plan is a critical safety step that must be initiated manually by the pilot; it is a common misconception among student pilots that the air traffic control tower or the landing itself automatically closes the plan. To close it, you must contact a Flight Service Station (FSS) via radio, phone, or a digital application like ForeFlight immediately upon landing. If you fail to close your flight plan within 30 minutes of your estimated time of arrival (ETA), the FAA will initiate a search-and-rescue (SAR) procedure. This begins with an "Information Request" (INREQ) to locate the aircraft and can quickly escalate to a full-scale search involving local authorities and the Civil Air Patrol. Therefore, making that final call—either to a local FSS frequency or by calling 1-800-WX-BRIEF—is the only way to signal that you have arrived safely and to prevent the unnecessary deployment of expensive emergency resources.