The quality of the service is crucial in every industry for drawing clients to a certain productor service, keeping them loyal, and motivating them to stick with the same brand for anextended period of time. A by-product of the brand's quality is satisfaction. Passengers judgebrandsbasedonthebenefitstheyreceivewhileselectingagoodorservice.Whenabrandmeetsth e modest expectations of its customers, passenger happiness is quite high, and every goodand service must work hard to keep it that way. Examining passenger satisfaction with airlineflight service quality was the goal of this study. According to the investigation, there is aconnectionbetweenpassengerhappinessandtheservicesprovidedbyairlines,whichincludesfive main components such as reliability, assurance, empathy, tangibility, and responsiveness.Data were gathered using a quantitative research method and a survey of passengers onaeroplanes.100passengersfromdifferentairlinesmadeupthesample.ThechisquaretestandANO VA were used to analyse the data. The findings suggested a significant correlationbetween1).reliabilityandassurance,2).Empathyandtangibility(asdemonstratedthroug hthechisquareanalysis),aswellas3).tangibilityandresponsiveness(asdemonstratedviaANOVAT EST).