Deregulation: How It Changed Air Travel

Before Deregulation: The Regulated Airline System

For four decades before the Airline Deregulation Act of 1978, the American airline industry operated under a framework that would be unrecognizable to travelers today. The Civil Aeronautics Board, established by the Civil Aeronautics Act of 1938, exercised comprehensive authority over virtually every economically significant decision an airline could make. It determined which airlines could fly which routes, approved or rejected every proposed fare change, and even regulated the level of in-flight service that carriers could offer — at one point prohibiting airlines from competing on food quality during regulated periods.

The rationale behind this regulatory structure drew on the experience of the 1930s, when unregulated competition among airlines had produced chaotic fare wars, questionable safety practices, and the financial ruin of numerous carriers. Regulation was seen as necessary to ensure stability, maintain safety standards, and guarantee that all regions of the country received adequate air service. In practice, it created something closer to a government-sanctioned cartel.

Fares were set according to a formula based on distance, with built-in profit margins that ensured established carriers remained financially comfortable as long as they filled enough seats. New competition was effectively barred: any carrier wishing to enter a new market had to apply to the CAB, whose approval process could take years and was routinely blocked by incumbent carriers. Between 1950 and 1974, the CAB did not approve a single application from a new trunk airline to enter a route.

The consequences for consumers were predictable. Fares were high enough that air travel remained a predominantly affluent activity. In 1965, a round-trip coach ticket from New York to Los Angeles cost approximately $115 — the equivalent of nearly a thousand dollars in contemporary purchasing power. The airlines competed vigorously on service quality, offering elaborate meals, wide seats, and attentive service that would be unimaginable in today's economy cabin — but the price of entry excluded a large majority of Americans.

• 1938: Civil Aeronautics Act establishes the Civil Aeronautics Board
• 1950–1974: CAB approves zero new trunk airline applications for route entry
• 1965: New York to Los Angeles round trip costs $115, roughly $1,000 today
• 1974: CAB controls 100% of fares and route allocations for certificated carriers

Intrastate carriers — those operating entirely within a single state and therefore outside federal jurisdiction — provided an inadvertent natural experiment in what deregulation might look like. Southwest Airlines in Texas and Pacific Southwest Airlines (PSA) in California flew comparable routes under state regulation rather than federal oversight. Both charged dramatically lower fares than the federally regulated carriers, flew more frequently, and operated profitably. Southwest's intrastate fares were roughly half of what federally regulated carriers charged for comparable distances, a difference that CAB proponents found difficult to explain away.

The Airline Deregulation Act of 1978

The intellectual groundwork for airline deregulation was laid in the early 1970s by economists who challenged the regulatory framework's fundamental premises. Alfred Kahn, a Cornell economist appointed by President Carter to chair the CAB, became the most prominent advocate of dismantling the system from within. Kahn argued convincingly that the airline industry had none of the natural monopoly characteristics that typically justified price regulation — there were multiple competing carriers, no insurmountable barriers to entry for well-capitalized operators, and no evidence that unregulated airline markets produced the failures the 1938 legislation had been designed to prevent.

Ted Kennedy, then chairman of the Senate Judiciary Committee, lent crucial political support to deregulation from the left, recognizing that artificially inflated fares functioned as a regressive tax that priced working-class Americans out of air travel. Consumer advocates including Ralph Nader added their voices. The bipartisan coalition that emerged was politically significant at a time when the airline industry's lobbying power was considerable.

The Airline Deregulation Act, signed by President Carter on October 24, 1978, phased out CAB authority over fares and routes over a five-year period and scheduled the CAB itself for abolition by 1984 — one of the very few instances in American regulatory history of an agency legislating itself out of existence. Airlines were immediately free to reduce fares below CAB-approved levels and could begin entering new markets without CAB approval. By January 1983, all route authority requirements were eliminated, and by January 1985, fare regulation was fully eliminated.

The law also included important provisions to protect smaller communities that feared losing service under deregulation. The Essential Air Service program guaranteed subsidized service to rural communities that might otherwise become uneconomical to serve. This program, funded by the federal government, has continued to operate for more than four decades and currently subsidizes service to approximately 140 communities across the United States.

Immediate Effects on Competition and Fares

The immediate aftermath of deregulation was something close to controlled chaos. New carriers materialized seemingly overnight, attracted by the prospect of competing in markets from which they had previously been excluded. People Express, founded in 1981, became the most dramatic embodiment of the new competitive spirit. Operating out of the unused North Terminal at Newark Airport, People Express offered fares so low — sometimes $19 for a New York to Columbus flight — that it generated a genuine revolution in leisure travel demand, filling aircraft to capacity even as its operating model proved ultimately unsustainable.

Established carriers responded to new competition with alarm and creativity in roughly equal measure. American Airlines introduced yield management — sophisticated computer systems that could price individual seats based on booking patterns, time to departure, and competitive intelligence — allowing it to undercut low-cost newcomers on price while maintaining higher fares for business travelers who valued flexibility. This innovation, subsequently adopted throughout the industry, transformed airline pricing from a simple fare structure into the extraordinarily complex dynamic system that bewilders passengers today.

Fares fell dramatically in competitive markets. Routes with multiple competing carriers saw price reductions of 30 to 50 percent within a few years of deregulation. However, fares in markets with limited competition — particularly smaller cities served by only one or two carriers — sometimes increased, a phenomenon that would preoccupy aviation economists and regulators for decades. The era also produced spectacular airline failures: Braniff International, having expanded aggressively onto new routes, collapsed in 1982, becoming the first major carrier to fail since deregulation.

The Hub-and-Spoke Response

One of the most consequential structural responses to deregulation was the widespread adoption of hub-and-spoke networks by legacy carriers. Under the regulated system, most airlines had operated point-to-point networks: direct services between pairs of cities, with the CAB allocating routes among carriers to prevent excessive duplication. Deregulation eliminated this structure and created an opportunity for carriers to reorganize their networks around central hub airports through which connecting traffic could be channeled.

The logic of hub-and-spoke was compelling. By concentrating operations at one or two major hubs, an airline could offer connecting service between a far larger number of city pairs than it could serve with direct flights, using a fleet small enough to be economically viable. A carrier operating a hub at Dallas-Fort Worth, for instance, could offer one-stop service between dozens of smaller cities that would never generate enough demand to support direct flights. The hub effectively pooled demand from multiple origin-destination pairs, allowing airlines to fill aircraft that would otherwise fly nearly empty.

American Airlines' development of Dallas-Fort Worth as its primary hub, United's build-up at Chicago O'Hare and Denver, Delta's expansion at Atlanta, and Northwest's consolidation at Minneapolis-St. Paul and Detroit defined the competitive geography of American aviation for a generation. Cities fortunate enough to become major hubs enjoyed economic windfalls from airport employment, business travel, and cargo operations. Cities bypassed by the hub system sometimes found their air service reduced or eliminated as carriers consolidated operations.

• Atlanta (Delta): Became the world's busiest airport, handling over 100 million passengers annually
• Dallas-Fort Worth (American): Emerged as a mega-hub for domestic and international connections
• Chicago O'Hare (United/American): Developed as a two-carrier hub, intensifying competition
• Cincinnati, Pittsburgh, St. Louis: Became hub cities before being abandoned when carriers consolidated

Hub dominance created what economists termed "fortress hub" dynamics. At airports where a single carrier controlled 70 to 80 percent of available seats, that carrier enjoyed significant pricing power and could charge fares substantially above what competition would otherwise allow. Passengers at hub airports with limited alternatives often paid what came to be called the "hub premium" — higher fares that subsidized the carrier's operations in more competitive markets. This phenomenon became a persistent concern for antitrust regulators and consumer advocates throughout the post-deregulation era.

Winners and Losers in the New Environment

The deregulated environment sorted airlines ruthlessly according to their ability to adapt. The winners shared certain characteristics: disciplined cost management, sophisticated revenue management systems, strong hub positions that provided pricing power, and labor agreements that controlled wages without triggering the crippling work stoppages that afflicted several carriers. American Airlines under Robert Crandall and Delta under Ron Allen demonstrated that large legacy carriers could survive and thrive in the new environment if managed with sufficient rigor.

The losers encompassed both legacy carriers unable to adapt and new entrants unable to survive the intensity of competition they had helped create. Eastern Air Lines, a carrier with a distinguished history dating to 1926, was destroyed by a bitter labor dispute in 1989 and ceased operations in 1991. Pan American World Airways, once the most glamorous airline in the world, sold its Atlantic routes to Delta in 1991 and shut down a few months later. Midway, Frontier (the original), and Continental (which survived only through bankruptcy reorganization) all struggled in the turbulent post-deregulation environment.

Perhaps most dramatically, People Express — the airline that had most vividly embodied the consumer benefits of deregulation — collapsed in 1986 after a period of rapid and ultimately unsustainable growth. Its failure was often cited as evidence of deregulation's dangers, but economists countered that People Express had demonstrated its core thesis too well: by proving the enormous latent demand for cheap air travel, it prompted legacy carriers to match its fares through yield management tools that People Express could not replicate, rendering its business model unviable.

The Global Spread of Deregulation

The American experiment with airline deregulation was watched closely by aviation authorities around the world. The European Community began a gradual process of liberalization in the mid-1980s, implementing three successive "packages" of reform between 1987 and 1993 that progressively eliminated fare controls, opened routes to competition, and ultimately established the principle of a single European aviation market in which any EU carrier could fly any route between any two EU member states.

The European liberalization produced results broadly similar to the American experience: dramatic growth in low-cost carrier capacity, substantial fare reductions on competitive routes, new route development linking cities previously without direct air service, and the bankruptcy or privatization of numerous state-owned carriers unable to compete in the new environment. Ryanair and easyJet, which emerged from the post-1993 liberalized environment, grew to become among the largest airlines in Europe by passenger numbers, fundamentally reshaping the continent's travel patterns.

Deregulation spread more slowly and unevenly to other regions. Australia liberalized its domestic market in 1990, ending the "two airline policy" that had restricted domestic competition for decades. Canada deregulated in 1988. Latin American countries liberalized their markets through the 1990s and 2000s, though the process was often incomplete and frequently reversed by governments concerned about the social consequences of airline failures. Asia-Pacific deregulation proceeded most slowly, with many governments reluctant to expose their state-owned carriers to full competition.

The Open Skies Era and Legacy Assessment

American deregulation's influence extended beyond domestic aviation through the open skies agreements that the United States began negotiating aggressively from the early 1990s. These bilateral agreements replaced the restrictive traffic rights frameworks that had characterized international aviation since the Chicago Convention of 1944 with more permissive arrangements that allowed greater competition on international routes.

The cumulative effect of four decades of aviation deregulation on the consumer experience has been extraordinary. Inflation-adjusted airfares in the United States fell by approximately 40 to 50 percent between 1978 and 2020, with the steepest declines coming in heavily competitive leisure markets. The number of Americans who fly at least once per year grew from roughly one in four in 1978 to more than half of all adults by 2019. Air travel transformed from a luxury purchased mainly by the affluent into a broadly accessible mode of transportation used routinely by a large majority of the population.

The costs of this transformation have also been real. Service quality in economy class has declined substantially as carriers competed primarily on price. Labor relations have been contentious as airlines repeatedly sought wage concessions to remain competitive. Industry stability has been elusive, with dozens of carrier failures since 1978. And the concentration that has resulted from consolidation raises legitimate questions about whether competition in the airline industry remains vigorous enough to deliver the consumer benefits that deregulation was intended to produce.

These tensions — between the manifest consumer benefits of lower fares and broader access on one hand, and the costs in service quality, labor conditions, and competitive dynamics on the other — continue to animate debates about aviation policy nearly half a century after the passage of the Airline Deregulation Act.