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.
Flixbus is a European bus operator that offers intercity and bus travel in over 38 countries. Known for their easy-to-spot lime green buses and for offering affordable transportation between cities in Europe and the Americas, Flixbus is a good option for those looking for an affordable, reliable bus company. In their buses, you'll find free WiFi, bathrooms, and power outlets. You can also pay extra to choose your seat and get extra legroom, or even buy a snack or drink onboard directly from the driver. You can reschedule your ticket for a small fee, which varies from $1 to $5, depending on how close you are to the departure date.
Frequently asked questions about traveling from Marathon, US to Key West by bus
What is the distance between Marathon and Key West?
The distance separating Marathon and Key West is 48 miles (77 km).
What are the best sights and things to do in Key West?
Once in Key West, you can start exploring the city and discover its surroundings. The top sights and things to do are Old Town Trolley Tours, Truman Little White House, Fort Zachary Taylor State Park Beach, Audubon House and Tropical Garden and U. S. Coast Guard Cutter Ingham Maritime Museum.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
Best price found
11/17
$12
11/18
$11
Today
$11
11/20
$11
11/21
$12
11/22
$12
11/23
$13
11/24
$13
The cheapest trip from Marathon, US to Key West was searched and found on Nov 18, 2025 with a price of $11
To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Marathon, US to Key West, as early as possible.
You can expect to pay from $11 to $14 for a bus ticket from Marathon, US to Key West based on the last 2 days. You can expect to find the cheapest price for the trip at $11 which is on 2025-11-20.
The cheapest trip from Marathon, US to Key West was searched and found on Nov 18, 2025 with a price of $11
