Few studies have investigated factors influencing students' continuance intention to use e-learning systems based on expectation-confirmation model (ECM). However, many of them have not examined all factors from ECM and that of information system success model (ISSM); rather, they picked few from both models. The crucial gap of this study is to integrate all factors from ECM and that of ISSM and propose a model for continuance intention to use e-learning systems and validates the proposed model using a sample of 424 drawn from students in four HLIs in Tanzania (i.e., IFM, CBE, DIT, and IAA). The structural equation modelling (SEM) technique was employed in analysing the collected data. The findings of this study reveal that satisfaction is the strongest predictor of students' continuance intention. Furthermore, two quality factors (information and system) are significant exogenous predictors of students' continuance intention. The resulting model showed significantly enhanced explained variance. The implications of this study and its limitations are also discussed.