By Dale DenwaltStaff writerddenwalt@oklahoman.comSouthwest Airlines will begin daily nonstop round trip flights to Nashville early next year. Will Rogers World Airport spokeswoman Karen Carney said the changes will allow for better connectivity for Oklahoma City travelers to Southwest Airlines' network, which include connections to the carrier's international stops. Southwest will also be suspending its daily service to Dallas, the company's headquarters and one of its major hubs.Read more on NewsOK.com