This study aims to find out the determinants of formal sector migrant workers in Mamuju Regency commuting to their area of origin on weekends at least once in the last month when the survey was conducted. The data used in this study are primary data with a sample size of 200 respondents in several government and private agencies. Sampling is done by using purposive accidental sampling. The analysis technique used is the Binary Logistic Regression Analysis. The results showed that (1) out of 200 migrant workers in the formal sector surveyed in August-September 2017, there were 119 people (59.5%) commuting. Among the 119 commuters, there were 13 (10.92%) commuting weekly in the last month, and 54 (45.39%) commuting once a month. (2) The factors of age, level of education, the status of residence in Mamuju, and the cost of living in Mamuju are stimulus factors making migrant workers decide to do the commuting to the migrant's home area, while other variables are not significant. (3) Another factor is the availability of inadequate real estate facilities and infrastructure, where the economic sector is not a base sector in Mamuju Regency so that it allows migrant workers to commute to their area of origin on weekends, especially for migrant workers coming from Makassar City and other regions that have more complete real estate facilities.