Attributes and characteristics of quality in offshore air transportation service

• Provides the first structured synthesis of service quality attributes specific to offshore air transport for workers, addressing a major gap in the literature. • Integrates bibliographic and bibliometric methods to map how safety, reliability, aircraft conditions, and human factors shape offshore helicopter operations. • Reveals the absence of user-centered studies on offshore passenger experience and proposes a framework aligned with SERVQUAL for future empirical evaluations. • Connects technical, operational, and behavioral dimensions into a cohesive model for assessing service quality in offshore aviation. • Offers practical insights to support managers, operators, and policymakers in improving safety, efficiency, and worker satisfaction in helicopter transport to offshore platforms. This study presents a comprehensive bibliographic and bibliometric review aimed at identifying and systematizing the main characteristics and quality attributes of offshore air transportation, particularly helicopter services connecting onshore bases to offshore oil and gas platforms. Despite its strategic importance for energy production and worker mobility, offshore air transport remains underexplored in terms of service quality and passenger perception. The analysis integrated publications from 2011 to 2025 retrieved from the Web of Science database, complemented by quantitative and qualitative evaluations using Biblioshiny and Bibliometrix tools. Eleven core attributes were identified — including Safety, Reliability, Service Frequency, Aircraft Conditions, Travel Time, Information Systems, Operator Behavior, and Infrastructure — which together define the technical, operational, and human dimensions of offshore air transport quality. Findings reveal a research gap in user-centered studies and highlight the potential to adapt quality assessment models, such as SERVQUAL, to the offshore context. This synthesis provides a conceptual foundation for future empirical applications and supports the development of management tools and performance indicators that enhance safety, efficiency, and passenger satisfaction in offshore aviation.