The dominance of the smaller carriers was again evident in North America. Allegiant was highest-rated in the region, followed by WestJet, Alaska Airlines, and Spirit Airlines. Southwest was sixth in North America, and United was the best of the U.S. legacies at ninth.

The top 10 scores overall were: AirAsia, 81; Air Arabia, 78; Ryanair; 78; Hainan Airlines, 77; Allegiant Air, 77; TransAsia Airways, 72; Vueling Airlines, 72; Copa Airlines, 71; Singapore Airlines, 70; and WestJet Airlines, 69. The highest possible score is 99.

Click here for more information on the Top 10 Top-Performing Airlines 2012 in an interactive presentation.

Full rankings lists, expanded commentary and analysis, and a breakdown of the methodology are available to Aviation Week Intelligence Network subscribers here.