Warren Buffett Famously Bailed On Airlines in 2020. Now Berkshire Just Bet $2.65 Billion on Delta. Time to Buy?

Berkshire Hathaway disclosed a new 39.8 million-share Delta Air Lines stake worth about $2.65 billion, making Delta its 14th-largest holding and a 6.1% position. Delta reported strong Q1 2026 results with record adjusted operating revenue of $14.2 billion (+9.4% YoY) and adjusted EPS of $0.64 (+40%), while premium products revenue surpassed main cabin revenue for the first time in Q4 2025. Near-term earnings face pressure from Middle East-related fuel costs, with more than $2 billion of additional Q2 fuel expense expected and guidance still unchanged at $6.50 to $7.50 EPS.

Analysis

The key signal is not that Berkshire likes airlines again; it is that Delta has migrated from a pure cyclicality trade to a quasi-consumer finance/loyalty compounder with a fuel hedge. That changes the competitive frame: carriers with weaker premium mix, smaller loyalty ecosystems, or less control over fuel input costs should lag even if unit demand remains firm. In practice, Delta is capturing more of the value chain, while legacy peers remain more exposed to fare competition and jet fuel beta.

The near-term setup is more nuanced than the headline bullishness suggests. Higher fuel is a tax on the entire industry, but Delta’s refinery partially offsets the shock and may actually widen its cost advantage versus peers over the next 1-2 quarters, especially if competitors hedge less effectively or have less pricing power. The second-order effect is that capacity discipline becomes more valuable: if management trims seats while pushing fares, the industry may see better pricing in premium/leisure, but weaker operators could be forced into discounting to protect load factors.

The market is likely underpricing how sensitive the stock is to any normalization in fuel. At roughly 10x earnings, DAL screens cheap, but that multiple is only durable if the premium mix keeps growing and corporate travel does not slow; both are late-cycle exposures. The contrarian risk is that Berkshire’s entry is being read as a structural endorsement when it may simply reflect a belief that current earnings are troughing on a temporary fuel spike, creating an attractive entry point into a higher-quality cash flow stream.

For a tradeable expression, the cleaner idea is relative value rather than outright long airline beta. If fuel remains elevated into the next quarter, DAL should outperform AAL/UAL/LUV on margin durability and guidance revisions; if fuel reverts, the market should re-rate DAL upward faster because of its stronger mix and cost hedge. The main catalyst window is the next earnings preannouncement/guide update over the next 4-8 weeks, where investors will focus less on revenue and more on how much of the fuel shock is actually defendable.

Key Decisions for Investors

• Go long DAL vs short AAL or LUV for the next 1-2 quarters; Delta has better pricing power, loyalty monetization, and a structural fuel offset, while the short legs remain more exposed to fare compression and weaker mix.
• Add DAL on weakness only if it trades below ~10x forward EPS and management keeps 2026 guidance intact; that setup offers asymmetric upside if fuel normalizes and downside is cushioned by premium revenue growth.
• Buy DAL calls into the next earnings/guidance window, targeting a 4-8 week catalyst; risk/reward is favorable if the market starts pricing in a smaller-than-feared fuel headwind and continued premium mix expansion.
• Avoid chasing the Berkshire read-through into BRK.B itself; the incremental upside from the DAL stake is likely small versus Berkshire’s scale, while the best expression is the single-name operating leverage in DAL.
• If fuel spikes further, hedge an outright DAL long with a short basket of AAL/UAL/LUV, since the relative P&L should come more from cost structure and pricing discipline than from sector direction.