The Business He Mocked, Bought, Then Fled

For many years, Warren Buffett used airlines - companies that fly planes - as his favourite example of a terrible business to own. He said flying companies eat up huge amounts of money and almost never pay their owners back. He even made a joke: he said that long ago, when the very first plane took off, a smart rich person should have shot it down, just to save all the future investors from losing their money in airlines!

Then, around 2016, Buffett did the exact thing he had warned everybody against. Berkshire bought big pieces of all four major American airlines. His new idea was that the airline business had finally become sensible. And then, in 2020, a disease spread across the whole world (the pandemic), and suddenly almost nobody could fly. The airlines were in deep trouble. So Buffett sold every single airline share - at a loss - and said simply: "The world changed, and I was wrong to be in this."

Three acts, from one very careful man, on one business: first he mocked it, then he trusted it, then he ran from it. So this is really two lessons in one. The first is a clean lesson about a commodity business - a business where every seller sells almost the same thing, so buyers only care about price. The second lesson is rarer and more valuable: watching even the great Buffett get pulled off his own rule, make a smart-sounding bet, and get caught. It is a humble reminder that even the best reader can be wrong - and that admitting it and walking away is part of being disciplined, not a failure.

A seat on a plane is almost a pure commodity. A commodity means a thing that is basically the same no matter who sells it - like plain sugar, or petrol, or salt. One shop's sugar is the same as another's, so you just buy the cheaper one. In the same way, on the same route at the same time, one airline's seat is basically the same as another's. So people just book the cheapest ticket. Now put that fact on top of very heavy costs, and you get a machine built to destroy money.

Follow the chain. Because all seats are the same, no airline can charge more than the others - try it, and everyone just books the cheaper flight. This is called having no pricing power (no ability to set your own price). Next, airlines have huge fixed costs - costs you must pay no matter what. The plane, the fuel, the pilots, the airport gate all cost the same whether the plane flies full or half-empty. And an empty seat, once the plane doors close, earns exactly zero, forever. So every airline is desperate to fill seats and will cut prices lower and lower to do it. Finally, adding more planes is easy - in a good year everyone buys more planes - so there are soon too many seats. The good years lead to the buying that ruins the next years.

Put it together and you get repeated price fights, where all the airlines cut fares until barely anyone makes money. Over a full cycle of good years and bad years, the money the owners get back is tiny - sometimes even less than the cost of capital, which is the smallest return money should earn to be worth using (remember, a simple bank deposit already pays you something). Lots of flying, lots of money spent, almost nothing left for the owners. That is the mark of a commodity business, and airlines show it in an almost pure form.

Buffett's 2016 bet was that this old curse had finally lifted. After many airlines had gone broke or joined together, only a few big American airlines were left. Maybe, he thought, so few of them would now behave sensibly - flying full planes, adding new planes carefully, and finally earning a decent return. It was a bet that the shape of the industry had changed enough to break the curse. For a few years it even seemed right. Then the pandemic - a shock no amount of sensible behaviour could stop - wiped out flying overnight and forced the airlines to raise emergency money in a way that hurt their owners. The old weakness was still there all along. So Buffett got out.

illustrative Picture one route flown by two airlines. Each flight costs ₹10 lakh to run - that is fixed, whether the plane carries 50 people or 180 people, because the plane, the fuel, and the crew all cost the same. If the plane holds 180 seats, the airline needs about ₹5,600 per ticket just to cover its costs and break even.

Now imagine fewer people want to fly, and planes are only two-thirds full. One airline thinks, quite sensibly on its own: "An empty seat earns me nothing. But if I drop the price a lot, I can fill that seat, and even a cheap ticket is better than an empty seat." So it slashes fares. The other airline sees this and thinks exactly the same thing, so it slashes fares too. Now tickets are selling for a few hundred rupees - far, far below the ₹5,600 each seat really costs. Both planes fly full. And both airlines lose money, because the price that fills the plane is lower than the price that pays for the plane.

That is the empty-seat trap. It is why commodity businesses with heavy fixed costs and no pricing power destroy money so reliably: each airline, acting sensibly on its own, does something that ruins them all together - and there is no protective wall to stop it. Having fewer airlines can soften this a little, because a few players may add planes more carefully and avoid silly fare wars. That was Buffett's 2016 hope. But the deep economics never fully go away, which is exactly why one big shock could still push the whole industry to the edge.

"This time it's different" is sometimes true - but it is usually the most costly sentence in investing. Buffett's idea that airlines had changed was not stupid. Industries do sometimes reshape into better ones, and refusing to ever change your mind is its own mistake. But "the business has changed now" is the exact story that every buyer tells right before things go bad. It needs very strong proof, because you are betting against a business's deep nature. If even Buffett got pulled in by a nice-sounding version of it, we should all be humble about our own.

A better industry is not the same as a strong company. Fewer airlines can lift the whole industry's earnings for a while. But it does not give any single airline a special edge over the others - passengers still just pick the cheapest ticket. A better industry and a strong company with its own protective wall (a "moat") are two different things. Mixing them up is how people pay too much during good times.

Selling a mistake is discipline, not weakness. Buffett sold at a loss in 2020 and openly said he was wrong. People think a forced exit is shameful. But the other choice - holding on to a broken idea out of pride, just to avoid admitting the loss - is the same sunk-cost trap from the textiles study, where money already spent tricks you into spending more. When the reasons you bought something fall apart, selling is the honest move - even at a loss, even in public.

The commodity-business reading works everywhere and is very useful in India, where many big, glamorous industries - airlines here too, phone networks, plain raw materials, thin-profit factories - carry the same signature: no pricing power, plus heavy fixed costs, plus easy adding of capacity. They destroy money through the very same price-war trap. The one part that does not travel is Buffett's exact "American airlines have joined up" bet - every country's industry has its own shape. What travels most is the humility. If the most disciplined investor alive can be talked off his own hard-earned rule by a smart-sounding "this time is different," then an ordinary person should treat that sentence, coming out of their own mouth, as a loud warning bell - and should be just as ready as Buffett was to walk away when the idea breaks.

• Check for the commodity signature. No pricing power (buyers pick on price) + heavy fixed costs + easy adding of capacity = endless price wars and tiny returns.
• Watch the empty-seat trap. Where an unsold unit earns nothing, companies cut prices to fill it - smart for one, ruinous for all.
• Distrust "this time it's different." Real change is rare, and it is the story every buyer tells at the top - demand very strong proof.
• Better industry is not a company moat. Fewer players can lift returns for a while without giving any single one a lasting edge.
• Exit a broken idea without shame. When the reasons you bought fall apart, selling - even at a loss, even publicly - is the discipline, not the failure.