Deutsche Bank's upgraded price target for Delta Air Lines (NYSE:DAL) underscores the airline's robust financial performance and promising outlook. Complementing this perspective, InvestingPro data reveals a compelling picture of Delta's market position. With a market capitalization of $29.55 billion and an attractive P/E ratio of 6.08, the company stands out for its financial stability. The P/E ratio has adjusted slightly higher over the last twelve months as of Q4 2023 to 6.85, still indicating a potentially undervalued stock when compared to industry averages.