Horizon Airport Parking at the Hartsfield-Jackson Atlanta International Airport (ATL) strives to make your travel experience easier by offering more than just parking. Aside from Airport Parking, our additional services are designed to free you from travel worries, making us the #1 choice for ATL Airport Parking. One visit with Horizon Airport Parking and you'll know why we are a safe and secure destination for airport parking in Atlanta. Use our convenient FREE Airport Shuttle that comes every 15 min. to ease your trip and get you safely to your destination on time! 24/7 Access. Whenever your flight lands or leaves, our lot will be open. Plan ahead, schedule your parking/ shuttle now by calling (404) 557-2100 to reserve your spot!