The busiest US airport for international freight also matched its 2014 record of 2.17 million tons of cargo, according to final audited statistics compiled by the Miami-Dade Aviation Department.
The 8.3% upturn in passengers amounted to three million people and was the biggest annual rise in the airport's history.
Domestic passengers surged by 11% to reach 23.1 million, while international traffic rose 5.5% and accounted for 21.2 million travellers.
Despite the decline of economies in many key Latin American and European markets, MIA held its ground as one of the world’s top 10 air cargo hubs, with 1.9 million tons of international freight and 256,891 tons of domestic shipments.
“I cannot say enough about how pleased I am with the growth at MIA in 2015,” enthuses Miami-Dade County Mayor, Carlos Gimenez.
“In addition to being our county’s top economic engine and one of Florida’s most valued assets, MIA is fast-becoming one of the busiest airports in the nation and in the world.”
An impressive mix of new carriers, routes and superjumbo aircraft added in the fourth quarter of 2015 contributed to MIA’s sharp increase in passenger traffic.
From October to December alone MIA welcomed new carriers Turkish Airlines, Austrian Airlines and low-cost carrier VivaColombia while both British Airways and Air France introduced the new A380 super jumbo on their respective London and Paris routes.
For the year, Hub carrier American Airlines was responsible for 50% of MIA’s growth, while other existing carriers contributed 25% and new carriers generated the remaining 25 percent.
MIA’s expanding international network will continue to broaden in 2016, when German low-cost carrier Eurowings begins service to Cologne in May and Scandinavian Airlines launches first-ever nonstop service to Copenhagen and Oslo in the fall.
“It was without question our most amazing year ever for passenger growth,” says Miami-Dade Aviation director Emilio González.
“In addition to growing by three million passengers in one year, the six new passenger airlines added in 2015 makes 12 in the last two years, or one new entrant carrier every other month.
"With the most airlines of any US airport, and the continued expansion of hub carrier American Airlines and other existing carriers, MIA is poised to reach greater heights in 2016.”