Nearly 10 years ago, Southwest Airlines launched a massive, high-flying tribute to the Volunteer State by painting a Boeing 737 to look like Tennessee's state flag. Tennessee One took to the skies in February 2016 to celebrate Southwest's 30 years of serving the Volunteer State at Nashville International Airport.

Southwest Airlines Co. is again growing its route map with service at Knoxville, TN, McGhee Tyson Airport scheduled to begin Marc | The airline is adding Knoxville as a third airport in the state, joining Memphis and Nashville;