The prestigious Aviation Week and Space Technology (AWST) commissions an annual ranking of all the listed airline companies in the world according to about 20 financial criteria tracked over a 10-year period.

Rex has been ranked first in the Regional Airline category for an unprecedented three consecutive years, beating some of the world's biggest regional airlines like SkyWest Inc and Republic of the United States.

In July 2012 AWST released its global ranking and Rex was ranked sixth for all airlines in the Asia Pacific and 11th for all carriers worldwide, two positions below Singapore Airlines but beating blue-ribbon carriers like Cathay Pacific, Lufthansa, Air France, British Airways and Qantas. Again for the fourth year running Rex was the highest ranked of all regional airlines.