Library in-transit services provided between various campuses of a university are important, helping to ensure user satisfaction, effective allocation of library budgets, optimum use of resources, and effective use of library spaces. In this study, 179 universities operating in Turkey were identified and selected for assessment. The methods which libraries at these universities employ to deliver information resources to users at other campuses as well as their in-transit practices are explained in detail. The paper presents the findings of a survey that was conducted at the selected university libraries in order to assess the current state and the impact of resource sharing via the in-transit method on library budgets, library spaces, and user satisfaction. The in-transit practice of Istanbul Bilgi University (BİLGİ) Library, which has a well-established in-transit policy and which keeps detailed statistics, was also used as a case study to analyze in-transit statistics and survey findings and to provide suggestions for future improvement. Design/methodology/approach: This study employed a historical and explanatory approach; statistical methods are used to analyze the results of the survey. An important outcome of the study was that it documented the current status of in-transit practices at academic universities in Turkey. The authors utilized their professional experiences in developing resource sharing and in-transit services within a university library context in Turkey in order to design the survey. Objectives: This research paper might be useful for any university librarians interested in resource sharing, effective use of library budgets, library collections, and library spaces, especially in developing countries. The paper also provides academic libraries with a set of guidelines for establishing an in-transit service. Originality/value: This paper is the first study of in-transit services provided between Turkish university libraries. It also addresses the opportunities and challenges that arise when establishing or improving in-transit services. The results of the study will be of use to university libraries, researchers, and library professionals working in the field.