
Greenville, South Carolina, is served by two airports: Greenville–Spartanburg International Airport (GSP) and Greenville Downtown Airport (GMU). GSP is the third-busiest airport in South Carolina, located midway between Greenville and Spartanburg, the major cities of the Upstate region of South Carolina. The airport is served by seven airlines, including American Airlines, Southwest Airlines, and Delta Air Lines. GMU, on the other hand, is the busiest general aviation airport in South Carolina, catering to business, charter, and personal aircraft. It is located just a few miles from Downtown Greenville and offers convenient access to the city.
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What You'll Learn

Greenville–Spartanburg International Airport
GSP offers modern amenities, dining options, and efficient security screening, providing a seamless travel experience for its passengers. The airport is served by seven major airlines, including Allegiant Airlines, American Airlines, Avelo Airlines, Breeze Airways, Delta Air Lines, Southwest Airlines, and United Airlines. These airlines provide convenient connections to various destinations, making it easy for travellers to access the region.
Before the construction of Greenville–Spartanburg International Airport, Greenville and Spartanburg each had their own airports and competed for airline service. In the mid-1950s, textile heir and industrialist Roger Milliken, along with other Upstate business leaders, proposed the idea of a shared airport to serve both cities. This proposal was approved in 1958, and the airport opened on October 15, 1962, replacing the Greenville Downtown Airport as the primary airline destination in the region.
Over the years, GSP has undergone expansions and improvements. In the 1980s, the airport expanded its terminal and cargo facilities, and the runway was lengthened in the 1990s. In 2004, the airfield was named after Milliken in recognition of his contributions to the airport's establishment. GSP has also seen a decrease in fares and an increase in passenger numbers due to the introduction of low-cost carriers in recent years.
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Greenville Downtown Airport
The airport has a long history, opening in 1928 as Greenville Municipal Airport. In 1930, it received its first airmail flight, and the famous aviator Amelia Earhart flew demonstration flights in November 1931. Eastern Air Lines began operating scheduled flights in the late 1930s, and Delta Air Lines followed in 1945. During World War II, the United States Army Air Forces utilised the airfield for training purposes.
In terms of safety, Greenville Downtown Airport has been recognised with the General Aviation Airport Safety Award by the FAA Southern Region. This award acknowledges the airport's dedication to enhancing flight safety through various projects. Notably, it was the first general aviation airport in the country to install an Engineered Material Arresting System (EMAS), which successfully prevented a potentially disastrous overrun incident in 2006.
The airport also provides convenient access for private and charter flights, with services such as aircraft maintenance, flight training, and upscale FBO facilities. It is a popular destination for travellers exploring the vibrant culture, food scene, and outdoor adventures of the region.
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Airlines serving the airport
Greenville-Spartanburg International Airport (GSP) is served by seven major airlines, including:
Concourse A
- American Airlines
- Southwest Airlines
- Silver Airways
- Avelo Airlines
- United Airlines
Concourse B
- Allegiant Airlines
- Delta Air Lines
In addition to these, Breeze Airways also serves the airport. Avelo Airlines is expanding its footprint at the airport, with the addition of a third route from Delaware’s Wilmington Airport (ILG) to GSP in June 2023.
The airport is the third-busiest in South Carolina, with over 2.56 million passengers in 2023. It is mostly in Spartanburg County, with a portion in Greenville County, and is in an unincorporated area, adjacent to sections of Greer. The airport has one terminal building with two concourses and one runway.
Before the construction of the Greenville-Spartanburg International Airport, Greenville Downtown Airport (GMU) was the primary airline destination in the region. Today, GMU is the busiest general aviation airport in South Carolina, providing a convenient landing spot for business, charter, and personal aircraft.
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Airport history
Greenville, South Carolina, is served by two airports: Greenville-Spartanburg International Airport (GSP) and Greenville Downtown Airport (GMU). Here is a brief history of these airports.
Greenville-Spartanburg International Airport (GSP)
The Greenville-Spartanburg International Airport is the primary airport serving Greenville, South Carolina. The airport is located between Greenville and Spartanburg and was built to replace the smaller, inadequate airports in these two cities. The process of building a new, modern airport was initiated by a group of Upstate business leaders, led by Roger Milliken and Charlie Daniel, in the late 1950s. They identified Flatwood, a community with long stretches of flat land, as the ideal site for the new regional airport. The land acquisition process began in 1958, and construction commenced in 1961.
The first commercial flight, Eastern Airlines flight 580, arrived at GSP on October 15, 1962, at 7:33 a.m. GSP was the first modern airport built from scratch and introduced several technological innovations, including being the first airport to install lights in its runway pavement. Today, GSP continues to be a leading airport in the nation, known for its modern amenities, efficient security screening, and convenient travel experience.
Greenville Downtown Airport (GMU)
The Greenville Downtown Airport is a general aviation airport located just a few miles from downtown Greenville. It is the busiest general aviation airport in South Carolina, catering to business, charter, and personal aircraft. The airport provides convenient access to the city, offering services such as aircraft maintenance, flight training, and upscale Fixed Base Operator (FBO) facilities. It also features the popular Runway Cafe, a family-friendly dining spot with views of the runway. GMU offers nonstop flights from major cities and easy connections through key airline hubs, making Greenville a convenient and accessible destination for travellers.
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Airport facilities
Greenville-Spartanburg International Airport (GSP), also known as Roger Milliken Field, is located near Greer, South Carolina, between Greenville and Spartanburg, the major cities of the Upstate region of South Carolina. The airport is served by seven airlines: Allegiant Airlines, American Airlines, Avelo Airlines, Breeze Airways, Delta Air Lines, Southwest Airlines, and United Airlines. GSP offers modern amenities, dining options, and efficient security screening, ensuring a smooth travel experience.
GSP was recognised by Airports Council International with five 2022 Airport Service Quality awards, highlighting the world's best airports as judged by their customers. The airport has also been added to the Thanks Again loyalty program network as part of its ongoing commitment to offering a better airport experience.
In terms of facilities, GSP offers convenient parking options, with secure and easily accessible parking lots. The airport provides clear parking status updates by lot and offers reserved parking for added convenience. GSP also provides clear security wait time estimates, with checkpoints opening as early as 4:00 a.m.
The Greenville Downtown Airport (GMU) is the busiest general aviation airport in South Carolina. It provides convenient access to the city, especially for corporate travellers, offering services such as aircraft maintenance, flight training, and upscale Fixed Base Operator (FBO) facilities. GMU is also known for the Runway Cafe, a family-friendly dining spot with views of the planes taking off and landing.
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Frequently asked questions
The airport in Greenville, South Carolina is called Greenville–Spartanburg International Airport. It is also known as Roger Milliken Field.
The IATA code for Greenville–Spartanburg International Airport is GSP. Its ICAO code is KGSP and its FAA LID code is also GSP.
Greenville–Spartanburg International Airport is served by seven airlines: Allegiant Airlines, American Airlines, Avelo Airlines, Breeze Airways, Delta Air Lines, Southwest Airlines, and United Airlines.











































