Dallas Love Field (DAL) is now well over 100 years old, having opened way back in October of 1917. It served as the city's primary airport for more than half a century until Dallas/Fort Worth International (DFW) opened 56 years later, in 1973. Today, Southwest Airlines commands around 96% of scheduled capacity there, but who accounts for the other 5%? Let's crunch the numbers and take a closer look.