Trenton Mercer Airport is located in Ewing, New Jersey, four miles from the Trenton city center. It ranks number six in the list of New Jersey’s busiest airports and averages about 100,000 flights a year.TTN Airport has a long history with aviation, the first plane landing in 1907 on what was then fields used for farming. The land wasn’t used as an airport until 1922 when Skillman Airport opened on the site that now houses Trenton-Mercer. Skillman was used during WWII, to test US Navy plans. After the war the airport reopened as Mercer County Airport and in 1995 it was renamed to Trenton-Mercer Airport to resonate more closely with the towns it serves.Although there are bus and train options that take passengers close to Trenton-Mercer, there are no direct routes that drop-off in front of the main terminal. Many taxi services provide the most common form of transportation to the airport. Parking is free at Trenton and both Avis and Budget car rental are on-site.The airport has one terminal and two gates, servicing the Frontier flights that utilize its facilities.  Frontier currently flies to nine domestic locations from TTN Airport. The airport will temporary suspend all air traffic from September 2013 to November 2013 to upgrade the runway.