When you land at Sofia Airport, you will have a choice of agencies to pick from in the arrivals hall. Some of these will have vehicles on-site, others will require a shuttle to reach the cars. So, if you’re in a rush, it is advisable to opt for an agency which doesn’t require a shuttle to reach your vehicle. For instance, Alamo and Enterprise are two examples of hire companies which provide instant access to your car. Search rental cars on KAYAK