Haloho, Sarah Donda Betris2022-01-192022-01-192021-07wahyu sari yenihttps://repository.unri.ac.id/handle/123456789/10429Tourism is an industrial economic phenomenon that is experiencing rapid development for the economy. Tourists need transportation to travel to the places they want to visit. This study aims to determine the right model for development of the number of tourists visiting Pekanbaru City via air transportation at Sultan Syarif Kasim II airport and forecasting the development of the number of tourists in the coming year. The data used comes from BPS Riau Province with the variable number of tourist arrivals in 2012-2019. The results of this study indicate that fluctuations occur every year and have a seasonal data pattern. The Holt-Winters Additive Exponential forecasting method is more effective to use because the resulting error value is minimal.enForecastingTransportationHolt-Winters Exponential SmoothingTime Series DataAdditives and MultiplicativesArticle