Objective: Since airports operate in foreign currency and are far from cities, employees could be limited to purchase food and beverages from more expensive sales points. Additionally, air services employees may be at risk for poor nutritional status due to job-specific unhealthy dietary habits and lifestyle behaviors. Yet, air services as workplaces have been understudied in terms of nutritional environment. Hence, in this study the aim is to assess food security (FS) and Mediterranean diet adherence (MDA) among Atatürk and Istanbul airports’ employees. Methods: The face-to-face cross-sectional study was conducted with a non-probability sample of 381 employees that were recruited between February and May 2022. FS was assessed with Food Insecurity Experience Scale and MDA with Mediterranean Diet Adherence Screener (MEDAS). Regression analyses were conducted to analyze the independent variables affecting FS. Results: MDA was found to be 7.6±2.07 and most of the participants were within a moderate adherence range. While 14.6% (n: 55) of the participants have moderate or severe food insecurity, 2.9% (n: 11) have severe food insecurity. The regression analyses revealed the factors affecting food insecurity as education, income, smoking, use of medication, and dieting status (p