Apr 12, 2010 — By мÓÆÂÁùºÏ²Ê¿ª½±Íø News Services — The Airline Quality Rating ranks the 18 largest U.S. airlines in on-time arrivals, baggage handling, denied boardings and customer complaints. Dean Headley, co-author of the national Airline Quality Rating at мÓÆÂÁùºÏ²Ê¿ª½±Íø, says airlines continued to improve last year.