Some airlines—like American Airlines, which started the first modern airline loyalty program—have loyalty programs with higher valuations than the airline itself.

Find out how airlines quietly became banks

Some experts suggest airlines lose money on every flight. This video dives into how airlines have leveraged their loyalty programs to make billions of dollars, effectively evolving into banks.

Nearly 3 million people fly in and out of US airports every day

However, not all of those passengers generate revenue for the airlines they purchase their tickets from. One business class traveler typically pays for five to six economy travelers. That's partly because airlines measure profit by the square foot, and although a business class seat is usually roughly 30% roomier than economy seats, the business class traveler usually pays about three times as much as someone sitting in economy.

Find out how airline mergers created some of today's largest airlines

Four airlines dominate the US commercial airline industry: Delta, United, Southwest, and American. Many of these large companies secured their top spots in the industry via a series of mergers and acquisitions starting in the 1970s, when American acquired Trans Caribbean Airlines.

The drastically different seat tiers on airplanes are a prime example of 'price segmentation,' which is key to keeping airlines profitable.

Commercial air travel's early days: Flights were short, cold, depressurized, and generally comfortable

After World War II, airlines competed for their high-end passengers by offering cocktails, meals, and plush seats, cultivating the image of the elite "Jet Set." By the 1960s, air transport was completely changing global trade and offering big profits to companies able to ship via plane.

Who actually pays for your credit card rewards?

In 2018, 92% of all credit card spending was made on a rewards card, which seems like a good deal to many who apply for rewards cards offering discounted flights, points, and more. But in actuality, the customers are often the ones who end up paying for the rewards in the grand scheme of things.

Southwest Airlines was profitable for nearly 5 decades

Business History hosts Jacob Goldstein and Robert Smith explore how a carrier with just four airplanes shuttling across Texas revolutionized flying by offering free whiskey, cheap late-night tickets, and free-for-all seating allocation, despite how hard it is to make money running an airline. However, the success story didn't last forever.

Jet fuel is expensive—which is one reason why it's tough to make an airline profitable

Jet fuel is typically a commercial airline's second-largest expense, second only to labor. Oil prices can be volatile—there have been recent significant increases in jet fuel prices given the 2026 Iran conflict, for instance.

Airbus is a rare European industrial success story that overtook a rival American firm

After World War II, the US dominated aviation, particularly Boeing. To compete, Europe's major industrial nations pooled resources to form Airbus, a customer-centric airplane manufacturer. Its A320 family of planes became the most popular in airliner history, leading to profitability in the 1990s. Amid Boeing's major hurdles in recent years, Airbus remains the industry leader.

In 2024, US airports generated over $1B of revenue—partly due to overpriced airport food

Some in the airport industry argue that charging street prices in airport restaurants isn't sustainable because it's more expensive to run a business inside an airport.

Learn how budget airlines provide customer savings

No-frills airlines, like Frontier and Spirit, are popular for providing customers with a much cheaper alternative to flying. However, many budget airlines rely on baggage charges and extra fees, which can sometimes make it just as expensive as flying on a mainstream airline.

Modern examples of oligopolies include the airline industry

An oligopoly is a market structure dominated by a few key suppliers. In the US, as of 2021, just four airlines (Delta, United, Southwest, and American) controlled nearly two-thirds of all domestic flights, making the US airline industry one example of an oligopoly.

Learn about the bodies that govern the US commercial airline industry, such as the FAA

The Federal Aviation Administration (FAA) regulates US air travel, monitoring both safety and advancement. But despite deregulation in the 1970s, the industry has other governing bodies, too, including the US Department of Transportation and the TSA.

In 2013, American Express became the first credit card company to open an airport lounge

American Express opened its first airport lounge, the Centurion, in Las Vegas more than a decade ago. Since then, not only has American Express increased the number of lounges it has in airports across the country, but other credit card companies have also opened lounges.

Listen to an account of an 'airplane game' leader, a notorious, widespread illegal pyramid scheme that swept across the US in the 1980s.

Rewards credit cards can offer points, travel miles, and more

For every dollar that a cardholder spends on a rewards credit card, they can also receive benefits such as cash back, airline miles, and more. For many, rewards are the reason they make so many purchases on credit cards in the first place.

See a visual of the largest airlines in the US by market share.

Learn more about American Express' membership rewards

American Express is well known for its membership program that allows cardholders to earn points. These points allow members to earn extra benefits and rack up savings at places like hotels, airlines, and restaurants.

American Express runs on a 'spend-centric' model, using perks and merchant fees to drive profit

American Express cardholders tend to spend more money per transaction than other credit card users, which makes the interchange fees merchants have to pay to accept American Express cards worth it while incentivizing other companies to pay the interchange fee as well.

American Express caters its business to wealthy cardholders

American Express cards charge high annual fees, but also offer significant rewards and credits. It's just one way the company targets affluent customers who spend higher dollar amounts per transaction and tend to have more transactions than the average cardholder. This strategy decreases the company's risk, since it actually offers credit instead of just acting as a card network.

See nine airplane models that transformed aviation

This visual guide jumps over the dawn of modern air travel and begins with the open-cockpit biplane flown by the first scheduled airline, the St. Petersburg-Tampa Airboat Line. (Some users may experience a paywall.)

An oligopoly is a market structure where a few large businesses dominate the entire market

When a few large companies dominate a market, changes in pricing for goods and services affect the entire market. Airlines are a common example of an oligopoly. Because the barrier to entry in the aviation industry is high, only a few airline companies offer the majority of the industry's services. While there is some competition, pricing across the board is largely intertwined and based on other companies' prices.

College football generates over $11B annually—but many programs run at a loss

Despite total revenues surpassing $11.5B in 2024, college football’s high operating costs—$14.5B in the same year—mean only a handful of top programs turn large profits, while most run at a loss.

100 years of passenger air travel: a visual guide

This interactive timeline covers the first 100 years of passenger air travel, which was created in 1925 when the U.S. Post Office allowed private airlines to start delivering mail.

The aviation industry built trust in automation by keeping pilots in the cockpit

Nearly 70% of Americans feel uncomfortable riding in a driverless car, and 81% of them would not fly on a pilotless plane. However, automated systems on planes were slowly introduced and advertised as enhancing safety—an approach that may benefit driverless vehicles.

The NFL makes most of its money through media licensing deals

The NFL, which reportedly earned more than $20B in 2023, generates its revenue through several key streams. The largest comes from media licensing deals, where networks and streaming platforms pay billions for the rights to broadcast games. Corporate sponsorships are another major contributor.

Visa, the first credit card network, still dominates competitors with a roughly 52% market share by purchase volume.

Among the major credit card companies in the US, Mastercard had about 25% of the market share in 2025. American Express had roughly 20%, and Discover had the smallest market share of about 4%.

Pan Am was once the largest international airline in the US—but it shut down in 1991 after a series of financial issues, beginning with increased operating costs and reduced demand driven by the oil crisis in the 1970s.

Commercial air travel made international vacations more commonplace.

American Express uses co-branded cards to provide brand-specific perks

Co-branded credit cards are partnerships between a card issuer and another company. Unlike regular credit cards that offer many different kinds of benefits at different companies, co-branded cards tend to only offer perks with the partner company. For example, American Express has a co-branded card with Delta airlines that allows users to earn points specifically towards the Delta rewards program.

Credit card companies make money through interest, annual fees, and more

They also profit from interchange fees, the fee the retailer has to pay the credit card network in order to facilitate a transaction. The fee is typically between 1% and 3% of the transaction amount.

More than 650 companies went public in the US in 1996

As the dot-com bubble reached its peak, most dot-com companies went public with little proof of being profitable and were often overvalued. In 1999, the Nasdaq's price-to-earnings ratio (a tool used to determine a stock's value that divides its price by earnings) hit 90.2, signaling that many companies were operating at a net loss. Startups promised investors that more time and money would help scale their businesses and become profitable.

Explore America’s top companies by revenue in 1994 versus 2023

America’s top companies by revenue have changed a lot in the past few decades. Sears, for instance, isn’t on the 2023 list, while Amazon isn’t in the 1994 edition.

Many airports have dedicated stores for luggage, despite most passengers having luggage with them already

This podcast episode argues that airport luggage stores exist due, in part, to the security measures implemented after 9/11, creating capitve audiences of travelers. Some argue that airport luggage store shoppers coming from places where luggage is more expensive could be purchasing luggage in international airports. Specifically, the episode traces airport history from the very beginning to today's luggage store in your local Terminal B.

Differences in air pressure above and below an airplane's wing allow it to fly

The bending of air around a surface causes it to flow more quickly, reducing the pressure exerted by the airflow. In a commercial airplane, the pressure difference between air diverted above the wing and air flowing undiverted below it creates enough lift to overcome gravity.

Roller coasters can cost millions of dollars to make, but they often offer a substantial payoff

Over 6,000 roller coasters are in operation around the world as of 2025, with ongoing demand to build more each year. Despite being costly (some theme parks pay upwards of $50M for these rides), their financiers are able to justify the investment when considering the long-term value of a ride that sticks around for decades with daily streams of visitors.

Two main types of inflight WiFi connections are air-to-ground and satellite-based

ATG systems rely on aircraft antennae to catch signals from cellphone towers, while the latter uses a network of satellites transmitting data from space. As of 2022, airlines like Delta and United hosted over 1.5 million monthly WiFi sessions.

One of the most important pieces of Amazon’s corporate empire? Its Prime subscription business

Prime drives customer loyalty and boosts Amazon’s revenue through its monthly and yearly fees. The key components included with a Prime subscription include free two-day shipping on eligible items, as well as access to services like Amazon Music and Prime Video.

Explore a timeline of advancements in American aviation

From the Wright brothers' flight of the first powered plane in 1903 near Kitty Hawk, North Carolina, to SpaceX's debut of the Falcon 9 rocket in 2010 with reusable boosters, this interactive shows off the technological evolution of flight, from mechanical propulsion to ballistic spaceflight. (Some users may experience a paywall.)