When United Airlines CFO Mike Leskinen took the stage at a recent investor conference, he didn’t mince words about his airline’s ambitions at Chicago O’Hare International Airport — or about the competitor he believes stands in the way. In a remarkably blunt assessment that has reverberated through the aviation industry, Leskinen essentially dismissed American Airlines’ Chicago operations as a fading presence, one that United intends to supplant with aggressive expansion plans targeting 2026 and beyond.
The comments, first reported by Business Insider, represent the latest and most pointed salvo in a rivalry between two of the nation’s largest carriers that has simmered for decades but is now reaching a boiling point. At stake is dominance over one of America’s busiest and most strategically valuable airport hubs — a prize worth billions in annual revenue and one that could reshape the competitive dynamics of domestic air travel for years to come.
Leskinen’s Pointed Remarks Signal a Corporate Strategy, Not Just Trash Talk
During the conference, Leskinen characterized American Airlines’ position at O’Hare as structurally weakened, pointing to what he described as a retreat from the Chicago market. According to Business Insider, the United CFO suggested that American has been pulling back capacity at O’Hare, ceding ground that United is more than happy to occupy. His tone was not merely competitive — it was dismissive, framing American’s Chicago presence as something closer to an afterthought than a genuine hub operation.
This kind of public rhetoric from a sitting CFO of a major airline is unusual. While airline executives frequently tout their own growth plans, directly belittling a named competitor’s market position at an investor event crosses a line that most corporate officers carefully avoid. That Leskinen chose to do so suggests United’s leadership views the Chicago battle not as a sideshow but as a central pillar of its growth strategy heading into 2026. The comments were calibrated to send a message to investors, employees, and competitors alike: United considers O’Hare its territory, and it plans to defend and expand that claim aggressively.
O’Hare: The Crown Jewel Both Airlines Covet
Chicago O’Hare has long been one of the most contested airports in the United States. It serves as a primary hub for United Airlines and has historically been a significant base for American Airlines as well, dating back to the latter’s absorption of TWA’s operations and its own legacy presence in the Midwest. For decades, the two carriers have competed gate-by-gate and route-by-route at the sprawling airport on Chicago’s northwest side.
But the competitive balance has been shifting. United has invested heavily in O’Hare infrastructure, including new gates, lounges, and terminal improvements. The airline has also been adding routes and frequencies out of Chicago at a pace that outstrips American’s recent activity at the airport. Industry analysts have noted that American has increasingly concentrated its hub strategy around Dallas-Fort Worth, Charlotte, and Miami, raising questions about how much firepower it is willing to commit to Chicago in the years ahead.
American Airlines Faces Pressure on Multiple Fronts
American Airlines has been dealing with a series of strategic and financial headwinds that may be limiting its ability to compete as aggressively at O’Hare. The carrier’s controversial decision in 2023 to scale back relationships with corporate travel agencies and shift toward direct distribution alienated many of its highest-value business customers. Although American has since reversed course on some of those policies, the damage to corporate travel relationships has been slow to repair.
Meanwhile, American’s financial performance has lagged behind United’s in recent quarters. United has posted stronger revenue growth, better margins, and more optimistic forward guidance, giving it the financial flexibility to invest in fleet expansion and hub development. American, by contrast, has been more focused on cost containment and debt reduction — necessary moves, but ones that can limit a carrier’s ability to fight for market share in competitive hub cities. The contrast between the two airlines’ financial trajectories has not been lost on Wall Street, where United’s stock has significantly outperformed American’s over the past 18 months.
United’s 2026 Expansion Blueprint Takes Shape
United’s plans for O’Hare in 2026 are ambitious by any measure. The airline has signaled its intention to add new domestic and international routes out of Chicago, increase frequencies on existing high-demand routes, and deploy newer, more fuel-efficient aircraft on key city pairs. The carrier is also benefiting from O’Hare’s ongoing $8.5 billion terminal modernization program, known as the O’Hare 21 project, which is expected to deliver new gate capacity and improved passenger facilities over the coming years.
Leskinen’s comments at the investor conference framed this expansion as an opportunity created in part by American’s perceived retreat. According to the Business Insider report, the CFO suggested that every gate and every slot that American vacates or underutilizes at O’Hare is an opening for United to grow. This zero-sum framing is telling — it indicates that United views O’Hare capacity as a finite and valuable resource, and that gaining share there is as much about denying it to competitors as it is about serving new demand.
The Corporate Travel Market Hangs in the Balance
One of the most consequential dimensions of this rivalry is the battle for Chicago’s corporate travel market. As the nation’s third-largest city and a headquarters location for dozens of Fortune 500 companies — including Boeing, McDonald’s, Abbott Laboratories, and Caterpillar — Chicago generates enormous demand for premium business travel. Whichever airline can offer the most comprehensive network of nonstop flights from O’Hare stands to capture a disproportionate share of this lucrative revenue stream.
United has been actively courting Chicago-based corporations with enhanced loyalty programs, dedicated corporate sales teams, and premium cabin products like its Polaris business class. American’s earlier missteps with corporate travel agencies may have created an opening that United has been quick to exploit. Industry sources say that several major Chicago employers have shifted their preferred carrier agreements toward United in recent years, a trend that American is working to reverse but that may prove difficult to undo quickly.
What American’s Response Might Look Like
American Airlines has not publicly responded in detail to Leskinen’s remarks, but the carrier is unlikely to cede the Chicago market without a fight. American still operates a substantial number of daily departures from O’Hare, and the airline retains a loyal customer base in the Midwest through its AAdvantage loyalty program. Industry observers expect American to selectively reinvest in Chicago routes where it can compete effectively, particularly on high-yield business routes to the East Coast and to key international destinations.
There is also the question of alliance partnerships. American’s membership in the Oneworld alliance gives it access to partner airlines that can feed traffic into O’Hare from international markets, including British Airways, Japan Airlines, and Qantas. United, as a Star Alliance member, has its own set of powerful partners, but the competitive dynamics of alliance partnerships at O’Hare could become an important factor in determining which carrier ultimately prevails in the fight for connecting traffic.
A Rivalry That Will Define the Next Chapter of U.S. Aviation
The United-American rivalry at O’Hare is about more than just one airport. It reflects broader strategic choices that both airlines are making about where to concentrate resources, how to compete for premium travelers, and what role hub dominance plays in an industry that is increasingly shaped by fleet economics, loyalty program revenue, and premium cabin demand.
For United, the bet on Chicago is a bet on the enduring value of hub concentration — the idea that an airline with overwhelming presence at a major connecting point can generate outsized returns through network effects and pricing power. For American, the challenge is whether it can maintain a credible multi-hub strategy that includes Chicago without spreading itself too thin across too many markets.
Leskinen’s willingness to publicly diminish American’s Chicago operations suggests that United’s leadership believes the tipping point may be near — that there is a moment of competitive vulnerability that, if exploited correctly, could cement United’s dominance at O’Hare for a generation. Whether American can muster the resources and strategic focus to prevent that outcome will be one of the most closely watched storylines in commercial aviation as the industry heads into 2026.