Miami-Dade County officials are evaluating whether to build a second major commercial airport as Miami International Airport approaches capacity constraints that could affect future growth and increase delays.
A 63-page report from the county mayor, detailed by Loca10 News, indicates Miami International is currently operating at about 80% of its airfield capacity—levels at which the Federal Aviation Administration typically recommends expansion to avoid congestion and operational slowdowns.
“Capacity challenges could impact growth, create travel delays, and affect our competitiveness,” said Miami-Dade Commission Chair Anthony Rodriguez. “We have to act now and plan ahead.”
County commissioners are now weighing three long-term options: constructing an entirely new airport within Miami-Dade, or expanding either Miami Executive Airport in southwest Miami-Dade or Miami Homestead General Aviation Airport into full-scale commercial facilities.
The county commission has instructed the mayor to return with a funding strategy by early June.
If approved, officials say any expansion of existing airports would take roughly 12 to 15 years to complete, while building a new airport from scratch could require up to two decades.
The discussion comes as part of broader aviation planning tied to projected demand growth. Officials have pointed to a $14 billion capital improvement program for Miami International Airport, which aims to handle 77 million passengers and 4.2 million tons of cargo by 2040.
The issue was highlighted during recent “State of the Ports” discussions, where officials underscored rising passenger and cargo volumes and the need for long-term infrastructure planning to keep pace with South Florida’s growth trajectory.
