United Airlines (UAL) closed at $44.90 in the latest trading session, marking a -0.16% move from the prior day. The stock trailed the S&P 500, which registered a daily gain of 0.17%. Elsewhere, the Dow saw a downswing of 0.25%, while the tech-heavy Nasdaq appreciated by 0.37%.Shares of the airline have appreciated by 6.84% over the course of the past month, outperforming the Transportation sector's gain of 3.15% and the S&P 500's gain of 3.8%.The investment community will be paying close attention to the ea ...