Suborbital space tourism is a catalyst for space industry revenue that could reach $1.1 billion by 2032. This study evaluated the influence of the four dimensions of Iso-Ahola's (1982) theory of tourism motivation on willingness to fly as a point-to-point suborbital space tourist. 870 participants responded to an online survey. The survey results were analyzed using structural equation modeling. The tourism dimensions of interpersonal seeking and personal seeking had the greatest influence on willingness to fly. The model explains 40% of the variance in willingness to fly. The results provide validated data for targeted marketing to potential point-to-point space tourists. The results of this study are a catalyst for future space tourism research.