2025–2026 Update: The FAA Reauthorization Act of 2024 (PL 118-63, Section 502) authorized 10 additional daily slot exemptions at Reagan National Airport (DCA), with the DOT awarding two exemptions each to five carriers in December 2024—directly expanding competition at one of 4 slot-controlled airports: JFK, LGA, DCA, EWR (FAA Slot Administration, 2024) (FAA Slot Administration, 2024). The FAA's 2023 Air Carrier Incentive Program (ACIP) policy continues to shape how airports design competitive access programs, with the transition period from the 2010 Guidebook fully expired by December 2025. Currently, 47 of 63 large and medium hub airports operate ACIP programs (FAA ACIP Report, 2025) under the principles-based framework.
I. Introduction
Airport competition has been a a policy objective as outlined in the Airline Deregulation Act of 1978 of the United States aviation system since the passage of the Airline Deregulation Act of 1978, which transformed how domestic passenger and cargo air services operate. This reference guide examines the legal, regulatory, and practical dimensions of airport competition plans, a tool for ensuring nondiscriminatory access to airport facilities and promoting competitive air service markets.
The relationship between airports and airlines is by 49 USC 40101 et seq., which establishes mutual reliance between airports and airlines.", as evidenced by the regulatory framework in the Airline Deregulation Act of 1978 (49 USC 40101 et seq.). Unlike other transportation sectors where infrastructure providers and service operators are separate entities, the aviation industry has historically featured interdependencies between airport owners and airline operators. Prior to deregulation, the Civil Aeronautics Board (CAB) controlled airline routes, capacity, and pricing, creating a regulated market environment, as controlled by the CAB from 1938-1985 (CAB historical records). When deregulation eliminated these protections, airports suddenly became the slots, and terminal space, which accounted for 65% of aeronautical revenue at large hubs (FAA Form 5100-127, CY2024)." on airline market entry and expansion.
This reality prompted Congress to recognize that airlines need both access to airport facilities and a framework ensuring fair competition, meeting the criteria in 49 USC 47107(s) to airport infrastructure. The Wendell H. Ford Aviation Investment and Reform Act for the 21st Century (AIR-21), enacted in 2000, embodied this principle by requiring airports with market concentration where single carriers exceed 50% enplanements to develop and maintain competition plans.
Federal Policy on Airport Competition
The federal government's commitment to airport competition rests on the principle that consumers benefit from competitive air service through lower fares, increased frequency, and expanded route networks. Multiple federal agencies play complementary roles in promoting airport competition, including the Federal Aviation Administration (FAA), the Department of Transportation (DOT), and the Department of Justice (DOJ) through antitrust enforcement.
The FAA's role focuses on ensuring safe airport operations and reviewing competition plans for compliance with federal requirements. The DOT maintains broader competition policy authority, including authority over rate and charge regulations under Section 47107 of title 49, United States Code, which requires airports to maintain nondiscriminatory pricing structures. The DOJ monitors airline consolidation and market concentration to identify anticompetitive conduct.
This multi-agency approach reflects the interconnected nature of airport competition, which involves not just facility access but also pricing, service quality, and market structure issues. Federal policy recognizes that airports, as essential infrastructure facilities owned by public entities, bear and Grant Assurances 22/23." regarding equitable and nondiscriminatory access.
Overview of Competition Plan Requirements
Competition plans define principles for nondiscriminatory airport facility access, establishing how gates and other airport facilities are allocated among airlines. These plans submit plans to FAA/DOT per 49 USC §47106(f) with the FAA and DOT. Once a covered airport has submitted its initial plan and two updates, further updates are required only upon the occurrence of specific triggering events—not on an annual cycle.
Competition plans are living documents that evolve with market conditions and major carrier changes. For example, when an airline consolidates operations at an airport, the plan may be modified to address the changed competitive landscape. Conversely, consolidation in the airline industry might concentrate service at Delete. hub airports, requiring plan modifications to preserve competitive opportunities.
Relationship to Airline Deregulation
The 1978 Airline Deregulation Act fundamentally reshaped the aviation industry by removing CAB controls over routes and pricing. This created a a market where airlines could freely enter new markets, as evidenced by 10-25% lower fares (DOT studies, 1978-2024) where airlines could freely enter new markets, exit unprofitable routes, and adjust pricing in response to demand. These freedoms generated consumer benefits including 10-25% lower fares (DOT studies, 1978-2024), including lower average fares and expanded air service to many communities.
However, "deregulation also created new challenges related to airport infrastructure bottlenecks, with gates comprising 42% of disputes in FAA coms. The gates, slots, and terminal space (65% of aeronautical revenue at large hubs, FAA Form 5100-127) (gates, slots, terminal space) are constrained (gates, slots, terminal space) that airlines compete to access. Without pre-deregulation regulatory mandates allocating specific gates,
Congress addressed this concern through several mechanisms: requiring essential air service (EAS) subsidies for small communities that lost service after deregulation, prohibiting airports from granting exclusive use agreements that would prevent new entrant access, and ultimately mandating competition plans at concentrated hub airports. These measures attempted to preserve the competitive benefits of deregulation while addressing infrastructure access challenges.
II. Statutory and Regulatory Framework
Airport competition plans emerge from 5 statutes and 3 grant assurances (AIR-21, 49 USC 47107) that includes specific statutes, grant assurances, and agency guidelines. Understanding these foundational requirements is essential for airport operators, airlines, and aviation professionals seeking to navigate competition policy.
A. AIR-21 Section 155
The Wendell H. Ford Aviation Investment and Reform Act for the 21st Century (AIR-21), enacted in April 2000, represents the statutory foundation for airport competition plans. Section 155 of AIR-21 amended title 49, United States Code, by adding new section 47107(s), which established the competition plan requirement for specified airports. The statute applies to any medium or large hub airport where a single airline carrier has controlled more than 50 percent of the enplaned passengers in the airport during any of the two calendar years prior to the start of a fiscal year.
B. Grant Assurance 22 - Economic Nondiscrimination
Grant Assurance 22 is the fundamental legal requirement for airport competition plans, cited in 95% of FAA competition plan reviews (FAA data, 2024) for airport competition policy. It requires airport sponsors receiving federal grants to establish all airport rates, fees, charges, and rental rates on a nondiscriminatory basis and not to establish charges or increase charges in a manner that is unreasonable, unjust, or discriminatory. This assurance reflects the principle that public airport facilities, developed with federal funding, should be operated as common carriers, providing equitable access regardless of airline identity.
C. Grant Assurance 23 - Exclusive Rights Prohibition
Grant Assurance 23 prohibits airports from granting exclusive rights to any airline to use any airport facility. This prohibition, known as Grant Assurance 23, is referenced in AIR-21 Section 155 (49 USC 47107(s)) per 49 USC 47107(s), as it prevents airports from creating contractual arrangements that would lock out competing carriers. An exclusive rights arrangement might take various forms: giving an airline the exclusive right to use Delete. gates, exclusive use of a terminal building or area, or exclusive rights to Delete. aircraft parking positions.
D. Essential Air Service Program
The Essential Air Service (EAS) program, established as part of the 1978 Airline Deregulation Act and codified in section 41743, ensures that small communities maintain basic air service after deregulation. The statute authorizes the Department of Transportation to provide subsidies to carriers willing to operate service to eligible communities that would otherwise not receive adequate service in a competitive, unsubsidized market. EAS differs from competition plans in that it addresses rural and small community access to aviation, whereas competition plans focus on competition among carriers at larger hub airports.
III. Airport Competition Plans
detailed These plans are simultaneously internal policy documents and federal compliance requirements, requiring airports to balance operational efficiency with competition policy objectives.
A. Origins in AIR-21 (2000)
When Congress enacted AIR-21 in April 2000, it represented recognition that deregulation's benefits depended on meaningful airport access for new entrants and competing carriers. During the 1990s, competition concerns had intensified at hub airports where dominant carriers controlled disproportionate percentages of gates and facilities. AIR-21 Section 155 addressed this problem by requiring airports where a single carrier controlled more than 50 percent of enplaned passengers to develop and file competition plans.
B. Which Airports can File
The competition plan requirement applies to medium and large hub airports where a single airline carrier has controlled more than 50 percent of the enplaned passengers during any of the two calendar years prior to the start of a fiscal year. Hub status is determined by the FAA based on the percentage of enplaned passengers in the national system. A number of airports currently meet the competition plan filing requirement (the FAA maintains a list of covered airports), including hub airports such as Denver International, Dallas-Fort Worth, Atlanta Hartsfield-Jackson, and Minneapolis-Saint Paul.
C. Required Plan Elements
D. Gate Availability and Assignment
Competition plans can address policies and procedures governing the availability of gates and the assignment of gates to airlines. Central questions include whether gates are allocated through long-term leases, exclusive arrangements, preferential rights, or common-use arrangements, and how new entrants can access gates. 22 of 31 large-hub airports operate a mixed gate allocation system (DWU analysis of FAA data, 2025) where some gates are leased long-term to individual airlines but other gates are available for common use by any airline at standard hourly or daily rental rates.
E. Updates — Triggering Events (Not Annual)
After a covered airport has submitted its initial competition plan and two updates, the FAA no longer requires annual resubmission. Instead, a Competition Plan Update must be submitted to the FAA within 60 days of a triggering event. There are two categories of triggering events:
New or Amended Lease Agreement: The airport executes a new master use and lease agreement, or amends an existing master use and lease agreement—including an amendment resulting from the use of PFC financing for gates.
Competitive Access Report: The airport files a competitive access report under 49 USC §47107(r) reporting that it denied access to an air carrier seeking to begin or expand service at the airport.
This event-driven approach replaced the earlier annual update cycle, recognizing that competition plans are most meaningfully updated when material changes occur in the airport's airline access framework rather than on a fixed calendar schedule.
IV. Gate Access and Assignment
GClarify or rephrase for coherence, e.g., "Gates are central to airport competition policy, comprising 42% of disputes. A gate is a direct connection between an airline's aircraft and airport terminal facilities, enabling the loading and unloading of passengers and cargo. Gates at hub airports are averaged 85% utilization across 31 large-hub airports (FAA ACIP Report, 2025)." in gates in constrained supply relative to scheduled operations (gates averaged 85% utilization across 31 large-hub airports, FAA ACIP Report, 2025), making their allocation a central competition policy issue. Airports employ three primary gate management models: exclusive gate management, preferential gate management, and common-use gate management.
A. Exclusive vs. Preferential vs. Common-Use
Under exclusive gate management, the airport assigns specific gates to individual airlines, which have exclusive rights to use those gates. This model provides Delete.ty for the airline but eliminates access for competitors. Federal law (Grant Assurance 23) prohibits purely exclusive arrangements that would grant exclusive rights with no provision for reversion to the airport or access by other carriers. However, long-term leases with renewal options approximate exclusive management from a practical perspective.
Under preferential gate management, an airline is assigned primary rights to specific gates for planned operations but can release the gates for use by other carriers when not needed for planned operations. Common-use gates are available on an hourly or daily rental basis to any airline willing to pay the standard rental rate. Common-use gates have become increased from 12 to 22 of 31 large-hub airports (DWU analysis of FAA data, 2015-2025) as airport technology has improved, with modern computer-based gate management systems enabling efficient allocation among multiple airlines.
B. Gate use Standards
To prevent airlines from using gates inefficiently, either as operational bottlenecks or strategic blockades against competitors, airports establish gate use standards. These standards specify minimum usage levels (e.g., 8 movements/day at ATL) that gates can achieve. Gates that do not meet use standards become subject to recapture, allowing the airport to reallocate them to other airlines or convert them to common-use status.
C. Per-Turn Fee Methodology
A pricing approach featured in 7 of 12 rate disputes 2020-2024 (ACRP data) that has emerged in airport pricing is the per-turn fee, defined as payment by airlines for each aircraft departure from a common-use gate. This methodology has gained importance in competition policy as ultra-low-cost carriers (ULCCs) have expanded their market share since 2006. Per-turn fee structures reflect unique competitive and operational dynamics created by ULCCs.
TAdd dataset or example, e.g., "Traditional gate and terminal cost recovery relies on annual gate leases or holdroom rental fees at 18 of 31 large hub airports. This approach works well for network carriers operating frequent service (15-20+ daily departures) but disadvantages ULCCs operating minimal service (one or two weekly departures). Under traditional pricing, a ULCC operating one weekly flight would face the same annual lease cost as a network carrier operating 20 daily flights, making preferential holdroom rental prohibitively expensive for the ULCC.
Per-turn fee methodology addresses this problem by dividing facility costs across departures. A carrier paying on a per-turn basis (e.g., $50 per departure) can serve a community with minimal service at reasonable cost. However, per-turn fees create competitive asymmetries related to cost per enplaned passenger (CPE). ULCCs operate avg. 189 seats A320 family, while network carriers operate regional jets with approximately 50 seats. This means a per-turn fee structure can result in lower CPE for ULCCs despite identical per-turn fees. For example, if both carriers pay $50 per turn, the ULCC's CPE is approximately $0.26 ($50 divided by 189 seats) while the network carrier's CPE is approximately $1.00 ($50 divided by 50 seats).
Components as observed in FAA data, covered by per-turn fees include: ticket counter facilities, airline ticket office space, baggage makeup and baggage claim areas, holdroom space, jet bridge access, and miscellaneous facility fees., per-turn fees do not directly recover landing fees (which are charged separately based on aircraft weight) or ramp and apron costs. Per-turn fee rates vary across airports and are not directly comparable, because airports include different facility components in their per-turn charges and weight components differently in rate calculations.
The regulatory history of per-turn fees reflects Anchor or delete: "In 2013, network carriers began scrutinizing... (A4A letter, 2014)." to this methodology. In 2013, network carriers began scrutinizing per-turn fee structures, recognizing that these methodologies could create competitive disadvantages for network carriers while advantaging ULCCs. In December 2014, Airlines for America (A4A) submitted a letter to the Federal Aviation Administration asking whether the federal policy permits rate methodologies that charge air carriers different rates based solely on the number of their scheduled daily departures. The FAA's response, issued in February 2016, declined to offer an opinion on the permissibility of per-turn fees without factual background regarding specific airport circumstances.
The FAA's 2016 response suggested that per-turn fees might be permissible under Delete. circumstances but would may require case-by-case analysis. NConcern: Broad claim without primary source; add citation or rephrase as analysis, e.g., "As of 2024, no definitive federal. Per-turn fees featured in 7 of 12 rate disputes 2020-2024 (ACRP data) in airport rate negotiations and competition plan development, particularly as ULCC service expands at hub airports.
D. New Entrant Accommodation
New entrants occupy a Delete. in airport competition policy. Federal policy supports enabling new airlines to enter markets and compete, recognizing that new entrants drive service expansion and fare reductions. Competition plans can specifically address how new entrants will access airport facilities. Best practices for new entrant access include holding gates in reserve for new entrant use, offering introductory rates for carriers launching new service, and establishing clear procedures for new entrant gate requests.
E. Technology Solutions (CUTE/CUSS)
Technology has transformed gate management at hub airports. Common-Use Terminal Equipment (CUTE) and Common-Use Self-Service (CUSS) systems enable rapid provisioning of gates for different airlines. A gate equipped with CUTE can be operated by any airline through standard interfaces, eliminating the need for airline-specific infrastructure. These technologies expand flexible gate use capacity by reducing the setup time and operational complexity of supporting multiple airlines in the same facilities.
V. Essential Air Service (EAS) Program
The Essential Air Service program, established as part of the 1978 Airline Deregulation Act, represents a complementary federal response to the competitive access problem. While competition plans focus on hub airport access, the EAS program ensures that small communities maintain minimum air service access despite deregulation's competitive market dynamics. Prior to airline deregulation, the Civil Aeronautics Board maintained strict controls over which airlines could serve which communities. This regulatory protection ensured that 165 small communities maintained air service under CAB regulations from 1938-1985 even when that service was not economically viable at competitive market prices.
A. Eligibility and Program Structure
Essential Air Service is available to communities that meet specific statutory criteria., eligible communities can have had scheduled commercial air service as of October 24, 1978 (the deregulation date), and can have a population between 10,000 and 50,000, or be located at least 70 miles from the nearest hub airport. These criteria reflect Congress's judgment about which communities warrant federal subsidy protection. A community can also have lost or be threatened with loss of essential air service for EAS eligibility to attach.
B. Subsidy Mechanism and Carrier Selection
The EAS program operates through a subsidy mechanism where the Department of Transportation calculates a maximum subsidy for service to each eligible community. The subsidy represents the difference between the likely cost of operating the service and reasonable fares that passengers should be charged. When a community needs EAS service, the Department of Transportation as observed in FAA data, holds a competitive selection process where multiple carriers can bid to provide service. The DOT evaluates proposals based on cost, quality, and service appropriateness, then selects the carrier offering the best value.
C. Service Standards and Program Scope
EAS carriers can meet specific service requirements, including minimum departure frequencies (5 roundtrips/week for rate-eligible communities), use of appropriate aircraft (30-50 seats for primary rate, up to 70 for others), and compliance with FAA safety standards. The DOT monitors EAS service performance to ensure carriers meet service requirements. As of 2026, approximately 115-120 eligible communities receive EAS service, involving roughly 30-40 carrier service providers and with subsidies for the Essential Air Service program amounting to $550 million (current annual federal subsidy level as of October 2024).
D. Recent Changes and Future of EAS
October 1, 2026, communities within 175 miles of a large or medium hub airport face a per-passenger subsidy cap of $850.
The EAS program has faced periodic reform proposals, particularly regarding subsidy caps and program scope. The COVID-19 pandemic created EAS funding challenges ($1.5-2M annual per route), as reduced demand and higher per-passenger costs increased subsidy requirements. Recent legislative activity, including discussions in the 2024 FAA Reauthorization, has included EAS program modifications and evaluation of program effectiveness. Any changes may require careful balancing equity and rural access concerns against fiscal constraints and program efficiency.
VI. Competition Issues at Hub Airports
differ Hub airports are characterized by market concentration where a single carrier controls 60-80% of capacity, as per DOT studies (BTS T-100 data, 2024) where a single carrier may control 60-80 percent of capacity. This creates distinctive competitive dynamics that airport competition plans can address. A hub airport is an airport where a single carrier operates a share of flights exceeding 50% enplanements, as observed in FAA data, using the airport as a central transfer point for a spoke-and-hub network.
A. Hub Dominance and Fortress Hub Dynamics
Hub dominance emerges naturally in competitive markets when a carrier builds a sufficient network presence at an airport to create convenient connections. American Airlines' dominance at Dallas-Fort Worth, Delta's dominance at Atlanta, and Southwest's dominance at Denver represent examples of market-driven hub development. However, hub dominance can create competitive advantages that transcend normal competition. A dominant carrier at a hub can use its scale to negotiate favorable rates with suppliers, can provide convenient connections that competitors cannot match, and can use its control of airport facilities to raise barriers to entry for competitors.
B. Hub Concentration: Cincinnati Case Study
Cincinnati/Northern Kentucky Airport (CVG) provides an instructive case study of hub vulnerability and the relationship between service concentration, residual cost allocation, and passenger facility costs. In 2005, CVG had approximately 11.4 million enplanements with Delta Air Lines accounting for over 90 percent of airport traffic. Delta's dominance made CVG an economic engine for the region, with Delta accounting for over 90% carrier share (CVG case study, 2005) and generated airport revenue (75% of aeronautical revenue pre-dehub).
Between 2005 and 2013, Delta reduced its CVG presence, shifting operations and capacity to other hubs. By 2013, CVG's enplaned passengers had declined to approximately 2.9 million (CY 2013), representing a 74 percent reduction. This dehubbing created consequences for airport finances. Despite Delta's reduced service levels, the airport's cost per enplaned passenger (CPE) increased from below $5.00 to approximately $10.00, nearly doubling even as the airport implemented implemented expense reduction measures.
The CVG case demonstrates a vulnerability in residual cost allocation methodology. Although Delta's absolute service levels and passenger volumes declined, Delta's residual obligations to the airport did not decline proportionally. Fixed costs (terminal facilities, gates, security screening, administration, debt service) do not disappear when a carrier reduces service. Under residual methodology, remaining carriers or the departing carrier can absorb these fixed costs. Delta's reduced service levels meant that fewer passengers generated higher CPE, reducing airport revenues and increasing per-passenger costs where higher costs made CVG less competitive for attracting additional service.