NAIA Expressway

The Ninoy Aquino International Airport Expressway (NAIAX), signed as E6 of the Philippine expressway network, is a 12.65-kilometer (7.86 mi) elevated highway in Metro Manila, Philippines. Opened in September 2016, it is the first airport expressway in the country. The expressway links the Skyway to Ninoy Aquino International Airport and Entertainment City. Traversing the cities of Pasay and Parañaque, the NAIAX runs along Andrews Avenue, Electrical Road, and NAIA Road, connecting the Skyway to Ninoy Aquino Avenue, Macapagal Boulevard, New Seaside Drive and the Manila–Cavite Expressway.

From the Sales Interchange (NAIA Exit) of Skyway, the expressway heads to the southwest and runs along Sales Road across Villamor Airbase and Newport City. It then curves to the northwest on Andrews Avenue towards the entrance to NAIA Terminal 3 and continues along the northern perimeter of the airport towards Electrical Road. From here, it turns south and runs along the Parañaque River, parallel to Domestic Road on the east towards the NAIA Road junction. From this junction, the expressway branches into two, with one traversing eastwards to NAIA Terminals 1 and 2, while the other continues westwards to Entertainment City and the Manila–Cavite Expressway.

The expressway is operated and maintained by Skyway Operations & Maintenance Corporation (SOMCo), the same company that operates Skyway, while its concession holder is SMC NAIAX Corporation (formerly Vertex Tollways Development, Inc.); both companies are subsidiaries of San Miguel Corporation (SMC).

Before the opening of the Skyway expansion project (by eliminating shoulders and shrinking the median) in 2020 that widened the expressway to 7 lanes, and due to the lack of right of way available for the project, NAIAX is the second expressway that does not have a shoulder, after North Luzon Expressway's southern segment between Balintawak and Tabang Interchange in Balagtas, and the first expressway having a narrow concrete barrier as median. Even though SMC claims that NAIAX is a 4-lane elevated expressway, SMC, via its subsidiary, Vertex Tollways Development, has built 5 to 7 lanes on the expressway without shoulders and with a narrow median barrier, with the configurations listed below.

These zones are actually 5 lanes with an acceleration lane for each direction to cater vehicles transferring between interchanges that are close to each other.

The maximum speed is 60 kilometers per hour (37 mph). The expressway has an overhead speed gantry so drivers can see the speed they cruise on; the gantry is located near the eastbound off-ramp to NAIA Terminal 3.

Before its development, the 1999 Metro Manila Urban Transportation Integrated Study recommended the construction of an interchange at Skyway leading to Terminal 3 of Ninoy Aquino International Airport.

On July 17, 2001, President Gloria Macapagal Arroyo and her Cabinet approved the construction of the NAIA Expressway, funded through a Japanese loan package, and construction of its interchange with Skyway began on March 17, 2004. Construction of the 1.6-kilometer (0.99 mi) NAIA Expressway Phase 1 (NAIA Terminal 3 Exit of Skyway) was completed and inaugurated on May 30, 2009. It provided an entry/exit ramp to the then-newly-opened NAIA Terminal 3 and Resorts World Manila (now Newport World Resorts).