US Airline Stocks Face Near-Term Headwinds as Focus Shifts to Fundamentals

U.S. airline stocks are entering a period of near-term consolidation as a macro-driven rally loses steam, with investor focus shifting back to company-specific fundamentals and upcoming second-quarter earnings. This assessment comes from a UBS Global Research report released recently, highlighting a significant shift in market sentiment for the sector.

The U.S. Global Jets ETF (JETS) recently surged 12% over a three-day stretch, fueled by market optimism surrounding the resolution of the conflict in Iran and the anticipated reopening of the Strait of Hormuz. However, equity analysts Atul Maheswari and Thomas Wadewitz noted that carrier stocks closed off their intraday highs, signaling that the initial multi-expansion bump has largely run its course. The analysts anticipate that volatility around macro headlines should normalize, and micro/stock fundamentals should come back into focus, with Q2 results likely serving as the next catalyst. Upward earnings revisions will be required to propel the sector into its next leg of growth.

UBS also highlighted a widening valuation disparity between Delta Air Lines Inc (DAL) and United Airlines Holdings Inc (UAL). Delta currently trades at a price-to-earnings (P/E) premium of more than 2x over United based on 2027 estimates, a spread historically sustained only during the 2014–2015 period. The bank expects this 2x valuation gap to narrow, driven primarily by an expansion of United's multiple rather than a retraction in Delta's, which alone could drive United's stock 12% higher. The recent drop in jet fuel prices is expected to clearly aid UAL's earnings and its valuation multiple against DAL. Fading market anxiety over potential leveraged merger-and-acquisition (M&A) risks at United is also expected to clear a path for multiple expansion. Alaska Air Group Inc (ALK) and American Airlines Group (AAL) are identified as the vehicles with the highest earnings sensitivity to energy prices; a $0.10 drop in fuel prices boosts 2027 earnings per share (EPS) by 13% for Alaska and 16% for American, compared to modest gains for Delta, United, and Southwest Airlines Company (LUV).

Examining the market impact, the Zacks Transportation - Airline industry gained 23.2% over the past year, outperforming its broader sector but lagging the S&P 500 composite's rise of 31.2%. Based on 2027 consensus estimates, major carriers are trading at the following P/E multiples: Delta Air Lines at 10.5x, Southwest Airlines at 10x, Air Canada (AC) at 10.5x, United Airlines at 8.5x, Alaska Air Group at 8x, and American Airlines at 7x. While recent volatility has improved the near-term setup for airline stocks, a real turn in the group still needs confirmation through sustained closes above key resistance levels.

Despite facing headwinds such as elevated fuel and labor costs, and geopolitical uncertainties, including those in the Middle East affecting the Strait of Hormuz, the industry has shown resilience, particularly with strong air travel demand, especially on the leisure front. J.P. Morgan analysts note that U.S. airlines are in fairly good financial shape, with liquidity generally exceeding both Global Financial Crisis (GFC) and pre-COVID levels. Furthermore, the industry today is less dependent on corporate demand and more so on the premium category, marking a reversal from previous slowdowns.

Analyst expectations suggest that micro/stock fundamentals and Q2 results will be the next catalysts in the coming period. UBS anticipates United's multiple expanding to narrow the valuation gap with Delta. J.P. Morgan indicates that while their near-term market call has turned more bearish, larger airlines have the flexibility to raise capital and avoid the restructuring fate seen in prior downturns. However, there are warnings that the market is unlikely to reward airlines with higher valuation multiples if earnings beats are driven purely by cheaper fuel rather than systemic revenue strength. In this environment, the current setup points to a stock-picker's market rather than a sector-wide buy signal, emphasizing selectivity and focusing on airlines that demonstrate strength independent of oil price movements.