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Introduction There are limited data regarding the international travel history and preparation, as well as glycaemic control practices, risk behaviours and experiences of people with type 1 diabetes during travel. Our review aimed to address the research question: 'What are the health practices, behaviours and experiences of people with type 1 diabetes when travelling?' Methods We conducted a mixed-methods narrative review using adapted review methods from the Centre for Reviews and Dissemination and standards developed by the Preferred Reporting Items for Systematic Reviews and Meta-Analysis. MEDLINE, Scopus, PubMed and CINAHL, and the reference lists of all eligible studies were searched. Results Nine records comprising of 11 studies were included, with data heralding from various countries, published between 1990 and 2022. We identified three main themes: travel preparation (type of travel, planning and advice seeking); issues related to air travel (airports and airport security, hypoglycaemia and hyperglycaemia, and insulin) and general travel-related issues (illness and medical treatment, type 1 diabetes management, and major concerns and barriers). Conclusions Our findings highlighted the lack of quality data regarding type 1 diabetes and travel within the extant literature, as well a pressing need for empirical studies to be undertaken and consensus guidelines developed to improve the travel experiences of people with type 1 diabetes. Unless change is made, people with type 1 diabetes will continue to experience preventable risk and harm while travelling. [ABSTRACT FROM AUTHOR]