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History·Feb 21, 2023

The History of Southwest Airlines

From a triangle drawn on a napkin to 47 straight years of profit: how Herb Kelleher turned a Texas low-cost airline into a culture impossible to copy, and the recent changes now redefining it.

The History of Southwest Airlines
Imagen: Unsplash

Legend has it that Southwest Airlines was born on a napkin. In late 1966, entrepreneur Rollin King met with his lawyer Herb Kelleher in San Antonio and, on a club table, drew a triangle connecting three Texas cities: Dallas, Houston, and San Antonio. That simple idea, flying within a single state at low fares, would become the most profitable airline in history. Both founders later admitted there may not have been a literal napkin, but the myth endures because it captures the essence of the business: simplicity.

Years of litigation before takeoff

The company was incorporated as Air Southwest on March 15, 1967, but more than three years would pass before its first flight. A coalition of established airlines, led by Braniff, sued to prevent its birth. The legal battle went all the way to the top: the Texas Supreme Court ruled unanimously for Southwest on May 13, 1970, and the U.S. Supreme Court declined to hear the rivals' appeal.

Two days before launch, competitors won a court injunction to stop the flights. The Texas Supreme Court had to convene in an emergency session to void it. Finally, on June 18, 1971, at seven in the morning, the first flight departed from Dallas Love Field bound for San Antonio.

The low-cost model

Southwest's genius lay in doing one thing, and doing it extraordinarily well. Its operating pillars were:

  • A single aircraft type, the Boeing 737, which simplified maintenance, crew training, and logistics.
  • Point-to-point routes, instead of the hub-and-spoke model of the major airlines.
  • Lightning-fast turnaround times and open seating to speed up boarding.
  • Two free checked bags and no change fees as signature differentiators.

The result was extraordinary: 47 consecutive years of profitability from its founding until the pandemic, a record no airline in the world matched. Over that same period, its three big legacy rivals each filed for bankruptcy at least once.

Kelleher and the culture impossible to copy

Herb Kelleher was famous for an irreverent, people-first leadership style obsessed with company culture. For him, that culture was not an ornament but the real competitive advantage.

Culture has everything to do with it, because my competitors can copy everything you just said, but they can't copy our culture, and they know it.

His greatest fear, he said, was losing that esprit de corps. He put it this way:

If we ever do lose that, we will have lost our most valuable competitive asset.

Southwest's ticker on the New York Stock Exchange, LUV, is a nod to its home base, Love Field, and to its heart-centered branding. For years, the so-called Wright Amendment, pushed by its rivals, restricted long-haul flights from Love Field; those limits were not fully removed until 2014. Kelleher died on January 3, 2019, at the age of 87.

The crisis and the recent changes

In December 2022, a winter storm combined with an outdated crew-scheduling system caused the worst operational collapse in its history: nearly 17,000 flights canceled and more than two million passengers stranded. The company estimated a cost of more than 1.1 billion dollars, and in December 2023 the Department of Transportation imposed a record 140 million dollar fine.

In 2024, Paul Singer's activist fund Elliott Management took a stake of more than 10% and pushed for deep changes. The company began dismantling some of its most beloved traits: it announced the end of two free checked bags starting in May 2025, its first-ever mass layoffs, assigned seating, and basic fares. In late January 2026, Southwest assigned seats for the first time, ending 54 years of open boarding.

A lesson in identity

Southwest's story poses the hardest question for any company with a strong culture: what happens when financial pressure pushes you to abandon the very thing that made you unique? Kelleher warned that the greatest risk was not outside, in the competition, but inside, in the possibility of betraying your own essence.

The takeaway: building a culture rivals cannot imitate is the most powerful advantage there is, and also the easiest to lose the moment you stop defending it.

Sources

  • Southwest Airlines (50th-anniversary archive) — https://southwest50.com/our-stories/when-herb-met-rollin-the-birth-of-southwest-airlines/
  • Fortune — https://fortune.com/2024/08/24/southwest-airlines-is-under-attack-and-its-something-founder-herb-kelleher-always-worried-about/
  • U.S. Department of Transportation — https://www.transportation.gov/briefing-room/dot-penalizes-southwest-airlines-140-million-2022-holiday-meltdown
  • The Washington Post — https://www.washingtonpost.com/travel/2024/09/26/southwest-airlines-free-bags-assigned-seating/
  • CNBC — https://www.cnbc.com/2026/01/28/southwest-airlines-ends-open-seating.html
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