Cologne has a well-developed transport infrastructure, including the Cologne Bonn Airport, which offers regular flights worldwide. The city also features major railway hubs connecting it to other European cities. For international shipping to Cologne, courier services like DHL, UPS, and FedEx operate, with typical delivery times ranging from 1 to 5 business days depending on the country of origin. It's important to note that Germany has strict customs regulations, especially for goods requiring certification or subject to taxes, which may increase the processing time of parcels at the border.