BRIEF-Delta sees April unit revenues up in 6 percent range
April 23, 2014 at 11:03 AM EDT
April 23 (Reuters) - Delta Air Lines Inc : * During earnings conference call, carrier says April unit revenues trending up in the 6 percent range * May and June unit revenues look to be rising in 5 percent to 7 percent range * Yen weakness hurt Q1 revenue, but carriers adds China markets showing