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.
Flights from Kansas City to Cancun. Planning domestic or international flights from Kansas City is easy using Orbitz.com. The site allows travelers to search a variety of airlines at once to locate the best deals. The Kansas City International Airport is located approximately 19 miles from downtown on Brasilia Avenue. The airport has 15 airlines and offers nonstop service to 51 different locations. Airlines include Southwest, Frontier and United Airlines.