Taking a position in an airline stock means investing in a business that must turn travel demand into profit while managing costs it cannot fully control. Full aircraft and higher ticket prices help, but neither guarantees attractive returns when fuel, labor, and financing expenses rise. The useful question is how much cash a carrier can generate after paying to keep its fleet flying, and whether its valuation leaves room for the risks involved.
That distinction is especially relevant in the current environment. CNBC reported on October 5 that resilient demand and volatile fuel prices were keeping airfares elevated even as airline earnings faced pressure. According to a Bernstein note cited in the report, U.S. airport security screenings were down 1% through September 20 compared with the same period in 2025. Meanwhile, August airfares rose 23.4% year-over-year. Travelers were paying substantially more without a corresponding increase in passenger numbers.
For investors, that makes the relationship between fares and costs more important than revenue growth alone. Reuters reported on September 16 that American Airlines expected third-quarter revenue to increase between 16% and 19%. Yet the carrier also estimated that the latest fuel-price increase would add approximately $1 billion to its fourth-quarter expenses compared with assumptions made in July. Higher revenue can therefore coexist with weaker earnings when operating costs move faster than ticket prices.
Capacity discipline is one way airlines are responding. American, United, and Southwest were scaling back planned schedules as expensive fuel made marginal routes less attractive. Removing flights can preserve cash and support fares by limiting available seats. However, investors should also consider what happens if fuel prices decline. A rapid return of capacity could intensify competition and reduce the pricing power that currently helps carriers absorb their higher expenses.
Our July 2026 coverage of Alaska Air examines why bullish airline forecasts depended on fare increases holding and travel demand remaining strong, illustrating the assumptions investors need to revisit as fuel costs change.
The shift toward premium travel offers another potential source of growth. Reuters reported on September 29 that domestic premium-seat capacity in June was 27% above 2019 levels, nearly three times the growth rate of economy seating. Airlines are investing in upgraded cabins, lounges, and loyalty programs to earn more from customers willing to pay for comfort. Those investments still need sufficient demand: too many premium seats could weaken fares and extend the time required to recover the spending.
Our comparison of Delta and United explores how premium cabins and loyalty revenue shape airline profitability and valuation, including whether United’s lower earnings multiple adequately reflects its remaining execution risks.
Alaska’s international expansion illustrates that trade-off. Reuters reported on October 2 that the airline’s nonfuel cost per seat mile in the first half was approximately 17% below the average of Delta, United, and American. Its revenue per seat mile was roughly a fifth lower, however. Adding long-haul routes and premium products could narrow that revenue gap, but aircraft, staffing, and startup costs arrive before the strategy proves itself.
Balance-sheet strength ultimately determines how much time an airline has to execute its plans. Investors should examine debt, fleet commitments, fuel exposure, and cash generation alongside demand trends. Hedge fund ownership offers a useful starting point for identifying companies attracting institutional interest, while the investment case still depends on whether each carrier can translate its network, pricing, and customer loyalty into durable returns.
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Our Methodology
For this article, we reviewed financial media sources and stock screeners to identify U.S.-listed companies in the airline industry. We then screened these companies using Insider Monkey’s hedge fund holdings database for the second quarter of 2026 and selected the 10 stocks with the highest number of bullish hedge fund positions. The stocks are ranked in ascending order of hedge fund ownership.
Why are we interested in the stocks that hedge funds pile into? The reason is simple: our research has shown that we can outperform the market by imitating the top stock picks of the best hedge funds. Insider Monkey’s quarterly newsletter strategy selects 14 small-cap and large-cap stocks every quarter and has returned 599.2% since May 2014, beating its benchmark by 372 percentage points (see more details here).
10. Grupo Aeromexico, S.A.B. de C.V (NYSE:AERO)
Number of Hedge Fund Holders: 30
Dive into the partnership ruling alongside fuel costs and margin pressure: Delta Air Lines (DAL) vs. Grupo Aeroméxico (AERO): Which Airline Stock is Better Positioned after the Cross-Border Partnership Win?
