What is UPS express? UPS worldwide express is an express delivery service provided by UPS and is similar to TNT express. In asking what is UPS express it is to be noted the UPS provides a number of different services including UPS express critical and UPS express saves. All UPS express services including UPS international express are designed to get your package delivered quickly worldwide. If you need a package delivered fast but what to do it on a budget consider UPS worldwide express saver. Still wondering what is UPS express or which to ship a package now? Start here.