Miami, Fort Lauderdale, Florida City, U.S. 1, and Card Sound Road

The Keys begin before the first bridge

Most Key Largo trips arrive by car from South Florida. Compare the complete airport transfer, use live traffic through Miami-Dade and Florida City, and navigate to the property's exact mile-marker area rather than stopping at the first Key Largo sign.

Miami, Fort Lauderdale, Florida City, U.S. 1, Card Sound Road, and the Upper Keys

Airports, U.S. 1, and Card Sound approaches to Key Largo

Compare Miami International and Fort Lauderdale-Hollywood airports with the complete rental-car transfer, then use live traffic to choose the U.S. 1 or Card Sound approach. Key Largo stretches along Overseas Highway, so the exact hotel, marina, or park address matters after the island begins. Map lines show planning corridors rather than turn-by-turn geometry; use current traffic, storm, bridge, and road information before departure.

Tap a marker to compare the two airports, Florida City, Card Sound Road, central Key Largo, and John Pennekamp Coral Reef State Park.
Friday arrivals, Sunday departures, holiday demand, crashes, construction, and tropical weather can change both the mainland approach and the final miles on Overseas Highway.

Open driving directions →

Second Star gear guide

Road Trip Essentials

Road-trip packing list

Road-trip gear

Phone mounts, chargers, coolers, emergency supplies, and small car organizers for the drive to and from the destination.

Car Phone Mounts

$19.99

Road Trip Coolers

$275.00

Car Emergency Kits

$69.95

Open road-trip guideMore picks on Second Star Guide →

Primary airport

Miami International Airport

MIA is usually the first flight comparison for Key Largo. Add rental-car pickup, Miami traffic, the Homestead corridor, and the exact hotel mile marker to the transfer.

Flight alternative

Fort Lauderdale-Hollywood

FLL may improve fare or schedule, but it adds a longer South Florida drive. Compare the complete terminal-to-room trip rather than airfare alone.

Main approach

U.S. 1 through Florida City

The principal route continues southwest into the Upper Keys. Friday arrivals, Sunday departures, incidents, storms, and holiday demand can change the final stretch sharply.

Alternate approach

Card Sound Road

This alternate reaches north Key Largo before reconnecting with the island corridor. Card Sound Bridge uses all-electronic tolling and accepts no cash; use a compatible transponder or expect Toll-By-Plate billing.

Current road sources

Check traffic and Card Sound tolling before the drive

Traffic and incidents

FL511

Check current crashes, construction, bridge incidents, and travel conditions before entering the Florida City and Upper Keys corridor.

Open FL511 →

Electronic toll

Card Sound Toll Authority

Monroe County publishes current Card Sound Bridge toll methods and rates. The bridge is cashless; check the official page rather than relying on an old quoted rate.

Check Card Sound tolls →

Boats and marina buildings near the Key Largo arrival corridor

Arrival night

Check in before adding a marina or park stop

South Florida traffic and the single island corridor can make a simple mileage estimate unreliable. Check in, confirm the next morning's boat message, and choose dinner near the hotel. Visit a marina, park, or bay shoreline only if enough daylight remains after arrival.

Before departure

Check traffic, storms, and the exact destination address

Use live navigation and current Florida road information for the travel date. Tropical weather, crashes, construction, holiday demand, and bridge work can affect both U.S. 1 and the approach roads. Keep enough fuel and time for a slower final drive.

Continue through Key Largo

Where to stayMatch the exact property address to boats and dinner.Things to doCompare parks, reef boats, bay paddles, fishing charters, and dry-weather alternatives.Three-night itineraryTurn the drive into a reef, bay, and marina trip.