Rankings / Airports / MIA

2025 flights

Miami International Airport (MIA)

Miami International Airport (MIA) carries at least 5% of the passengers on 10 of the 100 busiest US routes. On those routes about 16.5 million passengers flew through it in 2025, counting each route's airport split.

CO2 on the routes through MIA

The routes through MIA run from 96 kg of CO2 per passenger (Atlanta to Miami) to 292 kg (Los Angeles to Miami), with a middle of 158 kg.

Every route that uses MIA, busiest first
RouteFlown withShare through MIAkg CO2 per passenger
New York to MiamiLGA (21%), JFK (17%), EWR (14%)52%158
Atlanta to MiamiATL (46%)46%96
Miami to Washington, DCDCA (31%), BWI (18%), IAD (5%)54%144
Dallas-Fort Worth to MiamiDFW (57%), DAL (4%)62%160
Chicago to MiamiORD (48%), MDW (6%)53%161
Miami to CharlotteCLT (54%)54%109
Miami to BostonBOS (48%)48%186
Miami to HoustonIAH (48%), HOU (4%)51%142
Los Angeles to MiamiLAX (63%)63%292
Miami to PhiladelphiaPHL (54%)54%152

Airport references

Source: US Bureau of Transportation Statistics (BTS), T-100 traffic and Schedule T-2 fuel filings; US EPA jet-fuel CO2 factor. Route calculation method.

Airlines on these routes

By passengers on the routes above, the largest are American Airlines, Delta Air Lines, Spirit Airlines, JetBlue, United Airlines and Southwest Airlines.

About these figures. The CO2 per passenger is for the whole city pair, so it covers every airport the route uses. The airline filings the figures come from don't split fuel by airport, so we can't say how a flight from MIA compares with one from a neighbouring airport. The share column is the part of the route's passengers that flew through MIA, from the same filings. How the figures are built.