🇺🇸 Morristown Municipal Airport

Morristown Municipal Airport (MMU), also known by its FAA identifier KMMU, is a public general aviation reliever airport located three miles east of Morristown, New Jersey. It is situated in Northern New Jersey's Morris County, approximately 27 miles from Manhattan. The airport is operated by DM Airports, Ltd..

Type of Facility and Operations: MMU is open to the public and operates with a control tower. It serves private flight operators, offering flexibility for scheduling. The airport is home to two Fixed-Based Operators (Atlantic Aviation and Signature Flight Support) and includes a U.S. Customs and Border Protection (CBP) facility for international travel,. Fuel services include 100LL, Jet-A, and Jet-A+A.

Notable Features or History: The airport was activated in May 1943. MMU has a significant ongoing Runway 5-23 Rehabilitation Project, which began planning in 2005 and is being completed in annual stages to minimize operational impact. Phase X was completed in November 2024, and Phase XI was completed by August 30, 2025. This project aims to provide a new paved surface, upgraded approach systems, enhanced safety areas, and lighting upgrades. The airport also hosts an annual High School Aviation Day.

Current Status: As of August 30, 2025, the airport's Runway 5-23 was reopened to fixed-wing traffic after the completion of Phase XI of its rehabilitation project. The largest runway, Runway 5-23, is 6,000' x 150' and is equipped with an ILS and MALSR on Runway 23. The airport continues to undergo improvement projects and provides updates on construction and airfield status.

*Sources researched: mmuair.com, mmuairport.wpengine.com, airnav.com, cbp.gov*