Previously seen trips
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Key Largo | Marathon Airport | No tags | ||||
| Bus | Key Largo | Marathon Airport | No tags | ||||
| Bus | Key Largo | Marathon Airport | No tags | ||||
| Bus | Key Largo | Marathon Airport | No tags | ||||
| Bus | Key Largo | Marathon Airport | No tags |
Get from Key Largo to Marathon
The journey takes about 1 hour 40 minutes and with fares starting at just $18, it presents an excellent value for a comfortable ride.
Compare bus companies
Greyhound Lines offers the most comprehensive intercity bus services in the United States. They operate a modern, environmentally friendly fleet that serves more than 2400 destinations and carries nearly 16 million passengers annually. When traveling with them, you can expect free WiFi, onboard entertainment, bathrooms, power outlets and decent legroom. One of the great perks of Greyhound is that they connect big cities and smaller towns in the US, where you usually can't get to by train or plane. If you're looking for safe and affordable transportation, Greyhound is a great choice.
Frequently asked questions about traveling from Key Largo to Marathon, US by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Key Largo to Marathon?
The cheapest bus tickets from Key Largo to Marathon start from $18. The average price for this route is around $20. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus ride from Key Largo to Marathon?
The average bus trip duration from Key Largo to Marathon is 1h 40m, covering a distance of 46 miles (74 km). The quickest bus can get you there in 1h 40m and is operated by Greyhound.
Which bus companies service the Key Largo to Marathon route?
Several major train operators operate on this route with 2 trains available per day.
What is the earliest and latest departure time for the bus from Key Largo to Marathon?
The earliest bus departs from Key Largo to Marathon at 6:30am. And the latest bus departs at 12:30pm.
What are the CO₂ emissions for the bus trip from Key Largo to Marathon?
A bus trip from Key Largo to Marathon generates an estimated 2 kg of CO₂, making it a highly eco-friendly travel option and recommended mode of travel by Busbud.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Key Largo to Marathon, US was searched and found on Jan 14, 2026 with a price of $11To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Key Largo to Marathon, US, as early as possible.
You can expect to pay from $11 to $14 for a bus ticket from Key Largo to Marathon, US based on the last 2 days. You can expect to find the cheapest price for the trip at $11 which is on 2026-01-14.
