Ethiopian Airlines is one of the most successful organizations in Ethiopia; however, there isrnvirtually no formidable data on determinants of relationship marketing The objective of thernpaper is to assess the determinants of relationship marketing on overall relationship quality ofrnEthiopian airlines. To achieve this objective the researcher employed both quantitative andrnqualitative research approaches. Study population for the survey was both domestic andrninternational flight clients who fly Ethiopian during the study period. Besides, for the qualitativernpart, key informant interviews were conducted with employees of the organization. Arnquestionnaire with five Likert scale for the survey, and semi structured interview guide for thernkey informants were used as data collection tools. The major findings of the regression resultsrnshow that the hypothesized relationship quality antecedents were found to have a significantrncontribution on relationship quality of Ethiopian airlines. This is generally similar to previousrnresearches in other companies with some differences. Specifically, the effects of commitment,rnsatisft/ction, and communication on relationship quality were quite different /i'om the case inrnprevious researches; however, the effects of conflict handling and trust show similarity with thernprevious f indings. In this paper, conflict handling is the first strong contributor followed byrnsatisfaction, commitment, communication, and trust. In addition, the descriptive and interviewrnresulls show that the airline relationship quality is good; employees are welcoming, /i'iendly, andrnsociable; and show good hospitality. While, the airline is generally successfitl in maintainingrnquality relationship with its clients, certain problems such as poor conflict handling, unequalrncustomer treatment, informing customers at the event of flight delay and cancellations requirernattention.