In this paper, a hybrid method, AHP-weighted TOPSIS, has been used to determine the service quality of aviation industry as well as the best airlines and major criteria from customer perspective in Turkey. We have decided to choose 7 Turkish domestic airline companies using 9 criteria which have been determined with a survey with 92 participants. 9 criteria have been determined as the most important factors for airline selection for customers as follows: ticket price, flight comfort, time reliability, company image, staff quality, baggage allowance, in-flight service, flight availability per day, number of destination flown. An interview is carried out with 24 people to determine the relative importance of these 9 criteria. 5 expert opinions, who work as manager, have been collected for the relative qualitative comparisons of the criteria. The weight of the criteria obtained by the AHP method is used in the TOPSIS method for the final comparison of the 9 airline companies.  The results of the study produced an enriched perspective to determine the service quality of airline companies as well as the best airlines and major criteria from customer perspective.