ABSTRACT Sabang as one of the national tourist destination in the province of Aceh promising lots ofcharm, such as beautiful beaches and amazing panoramic sea floor. Determination ofSabang as a tourist destination should be supported by an adequate fleet both in qualityand quantity. Trip from Banda Aceh to Sabang served by 2 (two) kind of ships, namelythe slow boat owned by the government (KMP BRR) and privately owned speedboat(KM Express Bahari 3B). Number of trips to Sabang has increased very rapidly in 2013,so 1 (one) fleet of fast boat (Express Bahari 9) being served as an addition. Althoughthere have been three (3) fleet sail this route, but passengers often can not be servedbecause of the number of passengers exceeds the capacity. Therefore in this study wewant to know (1) the factors that affect the demand for ship passengers from / to Sabangand (2) formulating a model through regression analysis using time series model andcausal model. Time series model calculated based on secondary data for the last 5 years,ie: from 2010 - 2014. Causal Model processed based on primary data usingquestionnaires result. From Time Series model obtained equation to model the trip slowboat Banda Aceh - Sabang and vice versa, ie: Q = 172,796.640. e0,00002104 (p). As for thefast boats trip model from Banda Aceh - Sabang obtained the equation Q = 1,592E1914.e0,227 (p) and for models on trip from Sabang - Banda Aceh obtained the equation Q =3,115E170.e0,199 (p). Causal model processed using SPSS 18.0 software with the bestmodel based on criteria R and R2, taking into account the significant F-Test and t-Test.The Causal model of Banda Aceh - Sabang passenger trip demand is Y = 3,134 - 0,250X9 (traveling time) + 0,203 X13 (ship mode used) - 0,166 X6 (population) and for modelof passenger request of Sabang - Banda Aceh, Y = 1,450 + 0,437 X13 (ship mode used) -0,446 X1 (age) + 0,255 X5 (income) + 0,402 X12 (read / hear Sabang promotion). Keywords: passenger demand, time series models, causal models, regressionanalysis