Recently, various companies have increased their interest in psychological aspects of work, such as employees' feeling of job happiness and job frustration, in addition to the interest of these companies in providing job stability in the work environment to ensure that there is no dysfunction at work. The study aimed to assess the impact of job happiness, job stability, and job frustration on job dysfunction in travel agents, to determine whether job happiness has a mediating role in the relationship between job stability and job dysfunction in these agents. The study also aimed to determine if there were statistically significant differences among respondents to the study variables represented in job happiness, job stability, job frustration, and job dysfunction, according to demographic data. To achieve the objectives of the study; 591 forms were distributed to a sample of employees in travel agents in Cairo (Category A). 461 questionnaires were analyzed using SPSS V. 26 and AMOS V.21 programs. The study concluded that job happiness plays a partial mediating role in the relationship between job stability and job dysfunction. The results also highlighted the absence of statistically significant differences in the responses of the sample members to job happiness, job stability, job frustration, and job dysfunction due to demographic and functional variables. The study recommended the importance of adopting supportive leadership styles represented in the charismatic and servant leadership to achieve a high level of stability and job happiness among employees in Egyptian travel agencies.