United Airlines (UAL) stock rose early Wednesday after the airline posted a fourth quarter earnings beat, a week after rival Delta (DAL) saw premium and business travelers boost its results. Chicago-based United posted record operating revenue of $15.4 billion after the bell on Tuesday, compared with estimates of$15.37 billion, per Bloomberg consensus. That was slightly higher than in Q3 and up nearly 5% compared to a year ago. United reported adjusted earnings per share of $3.10 vs.$2.92 expected, wi ...