Raleigh-Durham International Airport (RDU) is the primary commercial airport serving North Carolina's Research Triangle region — encompassing Raleigh, Durham, Chapel Hill, and their surrounding communities — and one of the most economically dynamic airport markets in the southeastern United States. Located between Raleigh and Durham in Wake County, RDU serves a metropolitan area that has grown rapidly into one of America's premier technology, pharmaceutical, and research hubs.
Raleigh-Durham International Airport serves the Research Triangle — named for the research universities of Duke University, UNC Chapel Hill, and North Carolina State University — which has grown into one of America's leading centers for pharmaceutical research, biotechnology, technology, and academic excellence. This concentration of knowledge industries generates substantial business travel demand for RDU, connecting the Triangle's corporations and universities to national and international partners.
RDU operates two terminals: Terminal 1 and Terminal 2. The terminals are not connected airside and require ground-level movement for inter-terminal transfers. The airport has expanded significantly over the past two decades alongside the Research Triangle's rapid population and economic growth, adding gates, concourse space, and international service.
RDU serves approximately 15 million passengers annually and provides nonstop service to major domestic cities and select international destinations. The airport is managed by the Raleigh-Durham Airport Authority.
Raleigh-Durham Airport opened in 1943 on a tract of land midway between the two cities, reflecting the practical challenge of serving two separate city centers from a single facility. The airport grew through the postwar decades as a regional hub, serving the universities and emerging industries of the Research Triangle.
RDU's modern growth era began in the 1980s and accelerated through the 1990s and 2000s as Research Triangle Park — the large industrial park located adjacent to the airport — attracted major pharmaceutical, technology, and biotechnology companies. The airport's master plan has been updated repeatedly to keep pace with the region's growth, with major terminal and concourse expansions completed in the 2000s and 2010s.
RDU has two terminals. Terminal 1 is the older facility and handles American Airlines, Southwest Airlines, and other carriers. Terminal 2 is a more modern building that handles Delta Air Lines, United Airlines, and additional carriers. The terminals are not connected airside — passengers transferring between terminal-specific connections must exit to the ground level.
Both terminals have been updated in recent years. Terminal 2 in particular features modern design, improved dining and retail options, and a more spacious gate area. The airport authority has ongoing capital projects addressing both terminal facilities.
American Airlines is the largest carrier at RDU, providing domestic service and international connections via its hub at Charlotte Douglas (CLT). Delta Air Lines operates domestic routes and connections through Atlanta (ATL). United Airlines connects RDU to its hubs at Newark (EWR), Washington Dulles (IAD), and Chicago O'Hare (ORD). Southwest Airlines operates high-frequency domestic service.
International service at RDU has grown in recent years with American Airlines adding service to London Heathrow, and Air Canada serving Toronto and Montreal. Additional international routes serve Mexico and the Caribbean during peak seasons. RDU provides nonstop service to approximately 60 destinations.
RDU's terminal amenities have improved significantly in recent years, with Terminal 2 offering a particularly solid selection of dining and retail. North Carolina food and drink concepts are represented across both terminals. Free Wi-Fi is available throughout. Airline lounges are limited but American Airlines has club access available.
The airport is known for being a relatively efficient and easy-to-navigate facility — a reflection of its manageable passenger volume and straightforward two-terminal design. Nursing rooms, interfaith prayer spaces, and pet relief areas are accessible across both terminals.
RDU does not have a direct rail connection to downtown Raleigh or Durham. Triangle Transit bus service connects the airport to the regional bus network, though transit options are limited compared to larger metro areas. Rideshare services are the primary ground transportation choice for most travelers. Taxis serve the arrivals level. Rental car companies operate from an on-campus facility accessible via shuttle from both terminals.
The airport is accessible via I-40 and the Airport Boulevard connector. A planned Bus Rapid Transit or light rail connection to downtown Raleigh has been studied as part of the GoTriangle regional transit initiative.
RDU provides parking in garages adjacent to both terminals and in economy surface lots with shuttle service. The parking complex is well-maintained and offers competitive rates compared to larger urban airports. Economy lots offer the lowest rates with shuttle connections to both terminals. Advance reservations are recommended during major Research Triangle events and holiday travel periods.
Both RDU terminals are relatively compact and easy to navigate. Allow 75–90 minutes before domestic departure for a comfortable experience. If connecting between Terminal 1 and Terminal 2 (which may be required for some itinerary combinations), allow extra time as the two terminals require ground-level transport.
American Airlines connections via Charlotte (CLT) are the most common itinerary pattern for RDU travelers reaching non-hub destinations. CLT connections are typically tight — check connecting times and have a backup plan for tight connections. Delta connections via Atlanta (ATL) and United connections via Newark (EWR) or Washington Dulles (IAD) are the other major options.
Raleigh-Durham International Airport is a critical infrastructure asset for the Research Triangle's knowledge economy. RDU enables the direct connections that pharmaceutical companies (GSK, Biogen, Bayer), technology firms (IBM, Cisco, Red Hat), and research universities (Duke, UNC, NC State) require for their global operations. The airport supports tens of thousands of jobs in the region and generates billions in annual economic activity.
Research Triangle Park, located directly adjacent to the airport, is one of the most successful planned research parks in the United States — its proximity to RDU is a deliberate co-location that benefits both the park's corporate tenants and the airport's traffic base.
RDU is pursuing a capital improvement program focused on expanding gate capacity at both terminals and improving the passenger experience throughout. International arrivals facility improvements are underway to accommodate growing international service. The airport authority continues to work with GoTriangle on potential transit connectivity options. RDU's master plan projects continued strong growth consistent with the Research Triangle's economic trajectory.
RDU is a medium hub airport supporting regional economic growth and domestic travel. It serves as the primary aviation gateway for North Carolina's Research Triangle, connecting the region's technology and pharmaceutical economy to national and international markets.
There are no Airports within approximately 60 miles of Raleigh-Durham International Airport that may provide additional scheduled commercial or regional access.
Raleigh-Durham International Airport is the aviation expression of one of America's most remarkable regional economic stories — the Research Triangle's transformation from a tobacco-dominated rural economy into a world-leading center for technology, pharmaceuticals, and academic research. RDU's connections enable the global relationships that the Triangle's knowledge economy requires, and the airport's continued growth tracks the region's ongoing ascent.
The Research Triangle refers to the triangle formed by Duke University (Durham), UNC Chapel Hill, and NC State University (Raleigh). Research Triangle Park, located between the cities, is one of America's largest research parks. RDU sits at the geographic center of this region and serves the combined Raleigh-Durham metropolitan area.
American Airlines, Delta, United, and Southwest are the major carriers. American provides the most nonstop destinations. International service includes American's London Heathrow route and Air Canada's Toronto and Montreal routes.
No direct rail connection currently exists. Triangle Transit provides bus service to the regional network. Rideshare is the most practical option for most travelers. A future bus rapid transit or light rail connection has been studied.
No — Terminal 1 and Terminal 2 are separate buildings not connected airside. Ground-level transportation is required to move between terminals. Check which terminal your departure is from when arriving at the airport.
For the most current flight schedules, parking availability, terminal maps, and ground transportation updates, visit the official Raleigh-Durham International Airport website.
Raleigh-Durham International Airport Official Site