Background The emergency department (ED) is the first contact of many individuals who require acute health services. This study was the first to be conducted among patients in different regions of Saudi Arabia to determine patient satisfaction with emergency healthcare services using the Arabic version of theEchelle de Qualité des Soins en Hospitalisation (EQS-H). Methodology This cross-sectional study was conducted among 2,997 patients admitted to the ED in different hospitals in different regions of Saudi Arabia. The study was based on a self-reported questionnaire validated to assess the satisfaction of patients with ED healthcare services calledEQS-H. In this study, we used an Arabic version of the questionnaire. Statistical analyses were performed using R version 3.6.3. Results The study was conducted among 2,997 patients (36.7% males and 63.3% females). Regarding region, respondents from the central region represented one-third of the sample (31.7%), followed by respondents from the western, eastern, and southern regions (24.1%, 16.9%, and 14.6%, respectively). Statistical analysis showed that the average percentage score for the clarity of information was significantly higher in the central region than in other regions and was lowest in the eastern region. Individuals aged 26-35 years (B = -2.54 and P < 0.05), male sex (B = -1.63 and P < 0.05), Saudis (B = -3.81 and P < 0.05), longer ED length of stay (LOS) (B = -2.19 and P < 0.001), worse perceived health state, and lower life satisfaction scale scores were significantly associated with lower levels of satisfaction with ED services. Perceived improvement is the strongest predictor of satisfaction. Conclusion Moderate satisfaction levels were reported in both the clarity of information domain and relationship with staff domain among patients admitted to EDs in different regions of Saudi Arabia, with better results in the central region.