Yes, the packages manifested through the plugins can be shipped to any country, as long as the merchant has the UPS contract in place to use the relevant service.

As of August 2022, availability and support has been expanded to over 28 countries so now customers across Europea can easily integrate UPS services with their e-commerce website using UPS Plugins. Country Availability: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
*Certain plugin functions may be limited for accounts in non enterprise billing countries.