What We Can Learn From Herb Kelleher: Leadership through people, culture and unconventional thinking

What happens when a leader decides that employees should come before customers?

For Herb Kelleher, the answer was simple: look after your people, and they will look after your customers.

As co-founder and long-serving leader of Southwest Airlines, Kelleher challenged many of the conventions of both the airline industry and corporate leadership. He helped build an airline famous not only for low fares, but for a distinctive culture in which personality, humour and human connection were actively encouraged.

Behind the unconventional image was a serious leadership philosophy. Kelleher believed that culture could create competitive advantage, that employees deserved to be treated with respect, and that organisations performed better when people genuinely wanted to be part of them.

So what can modern leaders learn from a man who made putting people first a business strategy?

Who was Herb Kelleher?

Born in New Jersey in 1931, Herb Kelleher trained as a lawyer before moving to Texas, where a conversation with businessman Rollin King led to the idea for an airline connecting Dallas, Houston and San Antonio.

The concept eventually became Southwest Airlines, although getting it off the ground required years of legal battles with established competitors. Southwest finally began flying in 1971, with Kelleher playing a central role in defending and developing the fledgling airline.

He became chairman in 1978 and CEO in 1981, helping Southwest grow into one of America's most successful and distinctive airlines.

Kelleher was anything but a conventional corporate leader. He dressed as Elvis, appeared in company stunts and once settled a trademark dispute with another business through an arm-wrestling contest.

Yet beneath the eccentricity was a disciplined belief that people and culture were fundamental to business performance.

Where he excelled

Kelleher's greatest leadership strength was his understanding that culture was not separate from business strategy. It was part of it.

1. Putting employees first

Kelleher famously challenged the conventional idea that customers should always come first. At Southwest, employees took priority. His reasoning was simple. Treat employees well and they would be more likely to treat customers well. Happy customers would return, and shareholders would ultimately benefit too. It was a commercially astute recognition that employee experience and customer experience are deeply connected.

2. Creating culture through behaviour

Southwest's distinctive culture was not simply written into a set of corporate values. It could be seen in the way people behaved. Employees were encouraged to show personality, use humour and connect with customers as individuals. Kelleher reinforced that culture through his own behaviour, regularly spending time with employees and demonstrating that hierarchy did not need to create distance. He understood that leaders shape culture less through what they say and more through what they consistently model, encourage and reward.

3. Challenging conventional thinking

Kelleher was prepared to question assumptions about how airlines, and leaders, were supposed to operate. Southwest developed a deliberately simple operating model, while Kelleher himself rejected much of the formality associated with executive leadership.

His unconventionality was not simply about being different. It reflected a willingness to ask whether established ways of working were genuinely serving the organisation.

Where it wasn't perfect

Kelleher's leadership was hugely successful, but some of the qualities that made him distinctive also brought challenges.

1. He wasn't a natural details person

Kelleher was a charismatic strategist and culture-builder, but accounts describe him as disorganised and less focused on operational detail. He compensated by surrounding himself with people whose strengths complemented his own, most notably his long-time colleague Colleen Barrett.

2. His personality could overshadow the organisation

Kelleher became almost inseparable from the Southwest brand, creating a potential challenge when leadership passed to others. He recognised this himself, deliberately stepping back from some company events so his successors had space to establish their own authority.

3. Success can make established ways harder to challenge

Southwest's simple operating model and strong culture were fundamental to its success, but over time some critics questioned whether deeply embedded ways of working made adaptation more difficult. While later challenges cannot fairly be attributed to Kelleher alone, they highlight the risk that practices which once challenged convention can eventually become conventions themselves.

Leadership lessons we can apply today

Kelleher's story demonstrates that a strong people culture can be far more than something that makes an organisation a pleasant place to work. It can become a genuine source of competitive advantage.

1. Employee experience shapes business performance

How people experience an organisation internally eventually shows up externally. Engagement, trust and discretionary effort cannot simply be demanded. Leaders help create the conditions in which they emerge.

2. Culture is what leaders reinforce

Values on a wall mean little if everyday leadership behaviour tells a different story. People notice what gets rewarded, what gets challenged, what gets ignored and how leaders themselves behave. Those signals ultimately shape organisational culture.

3. Don't confuse professionalism with conformity

Kelleher demonstrated that people can take their responsibilities seriously without all behaving in exactly the same way. Giving people appropriate freedom to bring their personality, judgement and individuality to their work can strengthen both engagement and connection, provided the boundaries and expectations are clear.

Final thought

Herb Kelleher demonstrated that putting people first and delivering strong commercial performance do not have to be competing priorities.

His leadership helped create an organisation where culture supported strategy, employees were trusted to be themselves and doing things differently became part of the company's competitive advantage.

Perhaps his most enduring lesson is that competitors can copy your products, pricing and processes far more easily than they can copy a culture people genuinely believe in.

So here is your reflection: If someone experienced your organisation purely through the everyday behaviour of its leaders, what would they conclude your culture really values?

If you are ready to strengthen your leadership with greater confidence, authenticity and impact, my Leadership Unlocked programme can help you. And if your organisation is looking to build leadership capability and culture as part of a broader talent strategy, my Talent Management Consultancy can support you.