Berkshire Hathaway disclosed a $2.6 billion position in Delta Air Lines in its Q1 2026 13F filing, marking the first major airline stake Warren Buffett's firm has held since exiting the sector entirely in April 2020. The Delta position ranks as Berkshire's 14th-largest holding as of March 31.
The Omaha-based conglomerate accumulated the stake during the first quarter, purchasing shares while Delta traded in a range between $42 and $57. Berkshire's entry price appears clustered in the low-to-mid $40s, based on Delta's volume-weighted average price through February and early March. The position represents approximately 1.8% of Berkshire's reported equity portfolio, which stood at $144 billion at quarter-end. Delta shares closed at $51.20 on May 14, the day before the 13F disclosure.
Buffett liquidated Berkshire's entire airline book in spring 2020—Southwest, American, United, and Delta—at an aggregate loss estimated near $8 billion. He described the pandemic as fundamentally altering the industry's economics and acknowledged the sale as a recognition error. The 2020 airline positions had been built between 2016 and 2018, when Buffett cited improving industry structure and capital discipline. That thesis collapsed when travel demand evaporated and carriers drew revolving credit lines while equity holders faced dilution.
The Delta re-entry comes as U.S. carriers have posted twelve consecutive quarters of positive operating margins and reduced net debt by $47 billion industry-wide since mid-2021. Delta specifically retired $9.2 billion in debt over the past four years and maintains a net debt-to-EBITDA ratio near 1.4x, below its 2019 level of 1.9x. The carrier's premium revenue—first class, Delta One, Comfort Plus—now accounts for 38% of total passenger revenue, up from 28% pre-pandemic. Corporate travel has stabilized at roughly 85% of 2019 levels, but higher ticket prices and ancillary attach rates have driven revenue per available seat mile 19% above 2019.
Berkshire's return does not signal industry-wide accumulation. The 13F shows no positions in American, United, or Southwest. The Delta-specific bet appears linked to the carrier's Atlanta hub dominance, its SkyMiles loyalty program—valued by analysts at $18 billion to $22 billion—and partnership revenue from American Express, which pays Delta roughly $7 billion annually for co-branded card economics. Buffett has historically favored businesses with contractual recurring revenue and customer lock-in. SkyMiles fits that frame.
Allocators should monitor whether Berkshire adds to the position in Q2 or treats this as a static allocation. The next 13F, due August 14, will show activity through June 30. Delta reports Q2 earnings on July 10, with guidance expected for peak summer yield and fall corporate travel. Any Berkshire increase above 5% of Delta's shares outstanding would trigger separate SEC disclosure within ten days, a threshold the current stake does not approach. Watch also for activist or strategic interest in United and Southwest, both trading at discounts to Delta on an EV/EBITDA basis despite overlapping route networks.
Buffett turns ninety-six in August. The Delta position was almost certainly approved by him or vice-chairmen Greg Abel and Ajit Jain, given its size and the symbolic weight of reversing the 2020 exit. Whether this marks durable re-engagement with airlines or a one-time Delta exception will clarify by year-end.
The takeaway
Berkshire's $2.6B Delta stake is its first airline position since liquidating the sector in 2020; watch Q2 13F for follow-on buys.
berkshire hathawaydelta air lines13f filingairlineswarren buffettcapital allocation
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