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Domestic Airlines in the US Industry Data and Analysis
Domestic airline revenue varies with changes in domestic travel patterns. Airlines are investing in modern technology and upgrading aircraft to reduce costs. Mainline fleets are expanding aircraft size to carry more passengers per flight, enhancing economies of scale. Major carriers, like Delta Airlines, focused on advancing premium service offerings, while the competitive landscape was further shaped by budget airlines offering low-cost fares. Revenue is expected to expand at a CAGR of 16.5% to $243.8 billion through the end of 2025, including growth of 0.4% in 2025 alone. The double-digit CAGR is attributed to the low comparison base recorded in 2020.
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What's included in this industry analysis
IBISWorld's research coverage on the Domestic Airlines industry in the United States includes market sizing, forecasting, data and analysis from 2015-2030. The most recent publication was released September 2025.
About this industry
What's this industry report about?
The Domestic Airlines industry in the United States operates under the NAICS industry code 48111b. This industry provides domestic air transportation for passengers and cargo along regular routes and schedules. Network carriers operate a significant portion of their flights using at least one hub through which connections are made for flights on a spoke system. Regional carriers provide service to and from small cities, mostly using smaller aircraft and jets to support the network carriers’ hub and spoke systems. Airlines that transport mail are included in this industry. Related terms covered in the Domestic Airlines industry in the United States include hub, revenue passenger miles, revenue ton miles, code sharing and mainline.
What's included in this industry?
Products and services covered in Domestic Airlines industry in the United States include Mainline passenger transportation, Regional passenger transportation and Cargo transportation.
What companies are included in this industry?
Companies covered in the Domestic Airlines industry in the United States include United Airlines Holdings, Inc., Delta Air Lines, Inc. and American Airlines Group Inc.
Performance
What's included in the Performance chapter?
The Performance chapter covers detailed analysis, datasets, detailed current performance, sources of volatility and an outlook with forecasts for the Domestic Airlines industry in the United States.
Questions answered in this chapter include what's driving current industry performance, what influences industry volatility, how do successful businesses overcome volatility, what's driving the industry outlook. This analysis is supported with data and statistics on industry revenues, costs, profits, businesses and employees.
Products & Markets
What's included in the Products and Markets chapter?
The Products and Markets chapter covers detailed products and service segmentation and analysis of major markets for the for the Domestic Airlines industry in the United States.
Questions answered in this chapter include how are the industry's products and services performing, what are innovations in industry products and services, what products or services do successful businesses offer and what's influencing demand from the industry's markets. This includes data and statistics on industry revenues by product and service segmentation and major markets.
Geographic Breakdown
What's included in the Geographic Breakdown chapter?
The Geographic Breakdown chapter covers detailed analysis and datasets on regional performance of the Domestic Airlines industry in the United States.
Questions answered in this chapter include where are industry businesses located and how do businesses use location to their advantage. This includes data and statistics on industry revenues by location.
Competitive Forces
What's included in the Competitive Forces chapter?
The Competitive Forces chapter covers the concentration, barriers to entry and supplier and buyer profiles in the Domestic Airlines industry in the United States. This includes data and statistics on industry market share concentration, barriers to entry, substitute products and buyer & supplier power.
Questions answered in this chapter include what impacts the industry's market share concentration, how do successful businesses handle concentration, what challenges do potential industry entrants face, how can potential entrants overcome barriers to entry, what are substitutes for industry services, how do successful businesses compete with substitutes and what power do buyers and suppliers have over the industry and how do successful businesses manage buyer & supplier power.
Companies
What's included in the Companies chapter?
The Companies chapter covers Key Takeaways, Market Share and Companies in the Domestic Airlines industry in the United States. This includes data and analysis on companies operating in the industry that hold a market share greater than 5%.
Questions answered in this chapter include what companies have a meaningful market share and how each company is performing.
External Environment
What's included in the External Environment chapter?
The External Environment chapter covers Key Takeaways, External Drivers, Regulation & Policy and Assistance in the Domestic Airlines industry in the United States. This includes data and statistics on factors impacting industry revenue such as economic indicators, regulation, policy and assistance programs.
Questions answered in this chapter include what demographic and macroeconomic factors impact the industry, what regulations impact the industry, what assistance is available to this industry.
Financial Benchmarks
What's included in the Financial Benchmarks chapter?
The Financial Benchmarks chapter covers Key Takeaways, Cost Structure, Financial Ratios, Valuation Multiples and Key Ratios in the Domestic Airlines industry in the United States. This includes financial data and statistics on industry performance including key cost inputs, profitability, key financial ratios and enterprise value multiples.
Questions answered in this chapter include what trends impact industry costs and how financial ratios have changed overtime.
Industry Data
What's included in the Industry Data chapter?
The Industry Data chapter includes 10 years of historical data with 5 years of forecast data covering statistics like revenue, industry value add, establishments, enterprises, employment and wages in the Domestic Airlines industry in the United States.
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Frequently Asked Questions
What is the market size of the Domestic Airlines industry in the United States in 2026?
The market size of the Domestic Airlines industry in the United States is $243.8bn in 2026.
How many businesses are there in the Domestic Airlines industry in the United States in 2025?
There are 429 businesses in the Domestic Airlines industry in the United States, which has grown at a CAGR of 3.6 % between 2020 and 2025.
How may import tariffs affect the Domestic Airlines industry in the United States?
The Domestic Airlines industry in the United States is unlikely to be materially impacted by import tariffs with imports accounting for a low share of industry revenue.
How may export tariffs affect the Domestic Airlines industry in the United States?
The Domestic Airlines industry in the United States is unlikely to be materially impacted by export tariffs with exports accounting for a low share of industry revenue.
Has the Domestic Airlines industry in the United States grown or declined over the past 5 years?
The market size of the Domestic Airlines industry in the United States has been growing at a CAGR of 16.5 % between 2020 and 2025.
What is the forecast growth of the Domestic Airlines industry in the United States over the next 5 years?
Over the next five years, the Domestic Airlines industry in the United States is expected to grow.
What are the biggest companies in the Domestic Airlines industry in the United States?
The biggest companies operating in the Domestic Airlines industry in the United States are United Airlines Holdings, Inc., Delta Air Lines, Inc. and American Airlines Group Inc.
What does the Domestic Airlines industry in the United States include?
Mainline passenger transportation and Regional passenger transportation are part of the Domestic Airlines industry in the United States.
Which companies have the highest market share in the Domestic Airlines industry in the United States?
The company holding the most market share in the Domestic Airlines industry in the United States is United Airlines Holdings, Inc..
How competitive is the Domestic Airlines industry in the United States?
The level of competition is high and increasing in the Domestic Airlines industry in the United States.
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