Trenton Mercer Airport, located in Trenton, New Jersey, USA, has a long and interesting history. The airport is owned by the Delaware River Joint Toll Bridge Commission and operated by Mercer County. It is commonly referred to as “TTN”, its official airport code, and was formerly known as Mercer County Airport and Trenton-Mercer Airport.

The airport was initially built in 1929 as a military air field, and was named Mercer County Airport. It was used as a training ground for pilots in the 1940s, and was eventually declared surplus by the military in 1946. In the 1950s, the airport was purchased by Mercer County and renamed Trenton-Mercer Airport. It underwent further expansion in the 1960s and 1970s, with the construction of a new runway and a new terminal building.

The airport's code, TTN, was chosen to reflect its location in Trenton, New Jersey. The code stands for Trenton-Mercer Airport. The airport currently serves an average of 25 flights per day, and is served by several major airlines including United Airlines, American Airlines, and Allegiant Air.

The airport has undergone several renovations and improvements over the years, and is currently undergoing a major renovation project, which is expected to be completed in 2021. The project includes the construction of a new terminal and additional parking spaces, as well as the expansion of the existing runway.

Trenton Mercer Airport is an important part of the local community, providing economic benefits to the region. It also serves as a gateway to the wider region, making it easier for travelers to explore the surrounding areas of Trenton and Mercer County. It is an important part of the region’s transportation network, and continues to be a popular destination for commuters, business travelers, and tourists alike.