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Distance from MIA Airport to Key Biscayne, FL

Distance

19 mi

Time

36 minutes

Gas Cost

$2 - $4

Helpful Inaccurate

There are 10.47 miles from Miami International Airport (MIA) to Key Biscayne in southeast direction and 19 miles (30.58 kilometers) by car, following the Rickenbacker Causeway route.

MIA Airport and Key Biscayne are 36 minutes far apart, if you drive non-stop .

This is the fastest route from MIA Airport to Key Biscayne, FL.

MIA Airport and Key Biscayne, FL are in the same time zone (EDT). Current time in both locations is 3:39 am.

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Lowest Price Rental Cars in MIA Airport

Planning on renting a car to go from MIA Airport to Key Biscayne, FL? Here there are some offers to rent a car in MIA Airport

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Miami International Airport »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 0.78 gallons of gas to cover the route between MIA Airport and Key Biscayne, FL.

The estimated cost of gas to go from MIA Airport to Key Biscayne is $3.02.

During the route, an average car will release 15.34 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.86 per gallon of regular gas. Price last updated on March 18, 2026.
Read more about our CO₂ calculation.

Recommended hotels in Key Biscayne, FL

Looking for a place to stay in Key Biscayne, FL? Check out these hotel deals:

Halfway Point Between MIA Airport and Key Biscayne, FL

If you want to meet halfway between MIA Airport and Key Biscayne, FL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 25.785997 and -80.213768, or 25º 47' 9.5892" N, 80º 12' 49.5648" W. This location is 9.75 miles away from MIA Airport and Key Biscayne, FL and it would take approximately 18 minutes to reach the halfway point from both locations.