On this continuum, the level of professional skepticism moves from something less than complete trust, to a neutral mind-set, to presumptive doubt, and all the way to complete doubt. The appropriate level of skepticism to apply is initially determined only after a careful and rigorous risk assessment.
1 The longest flying aircraft flying from Kansas City, MO to Cancun, Mexico during the 2009 year was a AirbusNdustrie's A319 flown by Frontier.  Back in 2009 there was just one airline company operating flights between Kansas City and Cancun.
7,338 seats are available per week to fly direct from Cancun, MX to Miami. 3 airlines operate between Cancun, MX and Miami. American Airlines provides 86% of the nonstop flights from Cancun, MX to Miami. The largest aircraft flying nonstop from Cancun, MX to Miami is the Boeing 787 Dreamliner with 250 seats. 41% of all flights from Cancun, MX to Miami arrive during afternoon hours.