What Happens to America’s Best Airlines When Their CEOs Leave?

The Skift team has been tracking what is now the densest period of airline CEO turnover in recent memory, with more than a dozen changes across several continents since November. 

Willie Walsh leaving IATA for IndiGo; Campbell Wilson has been pushed out at Air India; Michael Rousseau forced to retire at Air Canada; Steven Greenway stepping down at flyadeal; Qatar on its third CEO in two years; Tim Clark still not-quite-retiring at Emirates. We’ve also covered the global forces driving all of it.

But the more I looked at the patterns, the more I kept coming back to the U.S., where the most interesting version of this story is playing out in real time, with real money attached. 

Two U.S. airlines with total identity clarity run by dominant personalities. One airline in a strategic identity crisis so deep its own employees are in open revolt. And several others at various stages of discovering what happens after the personality leaves. Together, it’s the best case study in aviation about what keeps a CEO in the chair, and what happens to an airline when that person goes.

Ed Bastian and Scott Kirby are both force-of-personality leaders, as much as Tim Clark at Emirates or Akbar Al Baker at Qatar. And both are delivering results that make the rest of the industry look lost.

Bastian’s imprint on Delta predates his CEO tenure by a decade — he was leading the financial turnaround in the mid-2000s. There is no version of modern Delta that wasn’t shaped by him. He built the culture, the labor peace, and the Amex relationship that generated $8.2 billion last year. 

But, but: the succession question at Delta isn’t hypothetical anymore. Glen Hauenstein, the architect of Delta’s entire premium revenue strategy, retired in February. Premium products already account for 43% of passenger revenue, and Joe Esposito has taken over commercial leadership. That’s a live stress test. 

The early signals are mixed: Delta chose Amazon Leo over Starlink for inflight Wi-Fi and won’t have fleet-wide coverage until 2028, by which point most competitors will have had it for years. 

If the premium machine keeps humming under Esposito, Delta will have proved something rare: that the strategy is institutional, not personal. If it wobbles, we’ll know it was a two-man project all along.

Kirby at United is a different animal. Everyone calls him combative and leaves it there, but that’s too simple. What Kirby has done, and this is where I think he may actually be better-positioned for succession than Bastian, is embed his worldview into hard infrastructure. Hub logic, fleet composition, network design, premium fare architecture, a leadership bench with Brett Hart as president and Mike Leskinen as CFO. 

The real succession question at United will be whether the next CEO plays offense like Kirby does or just maintains what’s been built. Maintenance is fine for a while, but the gap between offense and maintenance compounds fast.

And then there’s American, which is what it looks like when nobody can answer “what is this airline?” in a single sentence. Robert Isom is dealing with a unanimous no-confidence vote from APFA’s board, representing 28,000 flight attendants, while pilots have separately demanded the board take action. American has cycled through three strategic identities in a decade: Doug Parker’s scale-is-everything merger thesis, Vasu Raja’s direct-distribution experiment, and now Isom’s “we’ll be premium too, just wait until 2026.” 

Each pivot was a confession that the previous identity didn’t work. The airline made $111 million last year, while Delta made $5 billion and United made north of $3 billion. American needs to decide what it is, then find someone who believes it.

Southwest is the ghost of Christmas future for all of them. Herb Kelleher built the template for personality-driven airline leadership, and the airline is now systematically dismantling everything he stood for, with assigned seating, premium cabins and red-eye flights. In 2025, it executed the first mass layoffs in company history. Elliott Management forced the reckoning, but the real lesson is what happened in the dead zone between the founder and the restructuring. That’s the version of succession Delta and United should be studying.

Spirit is the extreme case: an identity so rigid it became a coffin. The airline went bankrupt and is trying to claw its way back as something the market will actually pay for. Frontier’s Barry Biffle was pushed out in December amid weak performance. Identity clarity is a moat until it becomes a cage.

Alaska is the quiet counter-example, a clean transition from Brad Tilden to Ben Minicucci that preserved the identity and expanded it through the Hawaiian acquisition. Nobody talks about it because it was boring, but that’s the point.

Here’s the contrarian read, and I think it’s the right one: Delta may actually be the bigger succession risk than United. Everyone assumes the opposite because Delta is smoother, more polished, the airline that runs like a Swiss watch. 

But United’s advantages are increasingly baked into tangible things — physical infrastructure and financial architecture that persist regardless of who sits in the corner office. Delta’s advantages are more intangible, brand trust, merchandising discipline, the Amex flywheel, labor goodwill, its dominance in Atlanta, and intangible advantages are harder to hand off. 

The next CEO at either airline may not really be inheriting an airline. They may be inheriting a premium-and-payments system that happens to fly planes. And the question is whether that system is durable, or just extraordinarily well-tuned to this particular moment.

Success is buying both boards time right now. That’s exactly why the question keeps getting deferred. But every other example in the industry, from Emirates to Qatar to Southwest, shows the same thing: the boards that think they have plenty of time are the ones that don’t.

Bastian is 68. Kirby is 58. Neither is leaving tomorrow. But every great airline eventually has to answer the same question: are you an institution or are you one person’s vision on borrowed time? Delta and United have been too successful to be asked. That’s not the same as having an answer.​​​​​​​​​​​​​​​​