When Southwest Airlines announced plans to start flying to Hawaii last year, Hawaiian Airlines was ready. Now, with the start of Southwest’s Hawaiian air service potentially only a few weeks away, Hawaii’s largest carrier is as ready as it will ever be. Hawaiian Airlines’ secret weapons? Its legendary customer service and a culture of constant improvement. If Southwest Airlines starts flying to Hawaii in 2019, as is widely expected, it might quickly find itself in a game of one-upmanship unlike any since airline deregulation in the 1970s………..