Abstract. BACKGROUND:Knowing the high and low peaks in comfort during a flight could be useful in prioritizing aircraft interior improvements. OBJECTIVE: The first objective of this study was to identify whether there are differences in comfort experiences during different phases of a flight. The second objective of this study was to identify similarities between recalled and real time reported comfort experiences. METHODS: 149 participants were asked to rate the comfort in the different phases of their last flight on a scale from 1-10. Additionally, a combination of a self-reporting design probe and generative interview was used to investigate the appraisal patterns of emotions in nine passengers. RESULTS:The 149 subjects reported the highest comfort after take-off and arriving at the destination, the lowest while stowing the luggage and during the cruise flight. The qualitative long haul inflight study showed after take-off and while arriving at the destination the most positive emotions and during the cruise flight there is a negative experience phase. CONCLUSIONS: Suggestions are given to improve the cruise flight phase, by for example stimulation of movement or better service.