Andrew Branch, the airport’s chief operating officer, told the airport authority on Tuesday that XNA will work with one of its consultants to determine which Southwest routes would make the most sense…XNA officials were careful to suggest that other airlines could be pursued and be discussed by the advisory committee…XNA’s leaders talk with Southwest representatives at least annually…For XNA, daily flights on Southwest to Dallas Love Field, Chicago Midway, St. Louis or Denver would appear to make the most sense….