The Airline Quality Rating (AQR) is the premier statistical study of major airline performance in the United States, objectively comparing airline quality.

The Airline Quality Rating (AQR) is the most comprehensive study of performance and quality of the largest airlines in the United States. The rating is a multifactor examination of the airlines based on mishandled baggage, consumer complaints, on-time performance and involuntary denied boardings. The Airline Quality Rating industry score for 2019 shows an industry that generally held steady in three of the four measured elements of the AQR. The decline in individual and industry scores is directly attributable to the changed metric used to establish the mishandled baggage ratio. Eight airlines (Alaska, American, Delta, Hawaiian, JetBlue, Southwest, Spirit and United) showed declines in AQR scores in 2019. Frontier had no change in AQR score from 2018 to 2019 even though their mishandled baggage rate was impacted by the new measurement along with all other airlines rated. American had the largest decline in their AQR score in 2019. The overall industry AQR score for 2019 is -1.46. Taking all 10 rated airlines together, the AQR score for the industry worsened from -0.66 in 2018 to -1.46 in 2019. This change is directly related to the implementation of a new measurement metric for mishandled baggage. Other AQR elements are still fully comparable across prior years. Industry AQR scores had improved each year for the previous four years (2015, 2016, 2017, 2018). No improved performance was seen for 2019 in any of the four of the areas tracked.