Many were shocked to see the Tennessee state flag painted on the side of a Southwest Airlines plane, but the Tennessee One celebrates 30 years in Nashville for Southwest. It shows their commitment to our state. They celebrated with a short trip to Memphis to show off the plane there and then back to Nashville. As part of the plane’s debut, Southwest offered $64 to $69 one-way flights to select airports from Nashville and Memphis. The discounts are available for purchase through March 3.