1. From Miami International Airport (MIA) to Key Largo

• Greyhound and FlixBus offer direct service from the Miami Airport Intermodal Center to Key Largo. Buses run around 5 AM and 11 AM, take about 1 hour and 30 minutes, and cost between $10–$22. Tickets can be purchased online or at the terminal.

2. From Miami (Downtown) to Key Largo

• Greyhound has up to two daily buses from the Downtown Miami Station or Bayfront Park, typically departing around 5 AM and 11 AM, with tickets priced around $13–$16.

• FlixBus also runs daily routes from several points in Miami (including the airport) to Key Largo, with prices ranging from $14–$22.on goes here