The importance of adopting sustainable practices in the tourism industry is well established. This project assessed tourism professionals’ perceptions of constraints and benefits to sustainable practices as well as actual implementation of energy practices across time. Adopting a longitudinal approach, perceptions and practices were tracked through an Internet-based questionnaire administered among tourism professionals in 2007, 2010, and 2013 in a Midwestern U.S. state. Professionals consistently agreed that attracting new clientele, improving consumer perceptions, and organizational image were benefits of sustainable practices, while initial financial costs constrained implementation. The most frequently implemented energy practices were using daylight and compact fluorescent light bulbs (CFLs). Only the use of two energy practices increased across time: using CFLs and Energy Star equipment. Overall, the adoption of sustainable practices was varied, and implementation rates remained minimally changed between 2007 and 2013. Reasons for the varied adoption and lack of changes in practice implementation may be explained by perceived barriers to implementation, lack of perceived benefits, and socio-economic contextual factors. With consideration to institutional theory and organizational capacity, industry and organizational-level implications are presented.