A "sponsored trip" refers to a journey or travel experience that is paid for or supported by a sponsor, typically a company or organization. Full definition
The boat I feel I may have missed is the sheer prevalence of sponsored trips that are available now in comparison to when I was really pounding the pavement for them. (theprofessionalhobo.com)
Many university alumni associations sponsor trips for their alumni members — for the purpose of staying in touch after graduation, networking, etc.. (travelinsurancereview.net)
We have to thanks the awesome guys at Quasar Expeditions for sponsoring the trip because without them it wouldn't have been as special. (wanderingtrader.com)