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St. Petersburg to Florida Keys buses

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Trip Overview

The average bus between St. Petersburg and Florida Keys takes 20h 29m and the fastest bus takes 18h 28m. The bus runs, on average, 5 times per week from St. Petersburg to Florida Keys. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

20h 29m
Duration
456 mi
Distance
$93
Average price
5 times a week
Frequency

St. Petersburg to Florida Keys bus times

Buses run 5 times a week between St. Petersburg and Florida Keys. The earliest departure is at 10:37 AM in the morning, and the last departure from St. Petersburg is at 5:47 PM which arrives into Florida Keys at 3:10 PM. All services require a transfer at Marion Transit Parking Lot and take an average of 20h 29m. The schedules shown below are for the next available departures.

Departing Wednesday, November 11, 2026

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    Arrives next day

    Pinellas Suncoast Transit AuthorityGreyhound USAGreyhound USAKey West Transit25h 38m • 3 changes
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    Arrives next day

    Pinellas Suncoast Transit AuthorityFlixbus USAGreyhound USAKey West Transit21h 23m • 3 changes

Departing Thursday, November 12, 2026

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    Arrives next day

    Pinellas Suncoast Transit AuthorityFlixbus USAGreyhound USAKey West Transit18h 28m • 3 changes

Departing Friday, November 13, 2026

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    Arrives next day

    Pinellas Suncoast Transit AuthorityFlixbus USAGreyhound USAKey West Transit18h 28m • 3 changes

Departing Monday, November 16, 2026

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    Arrives next day

    Pinellas Suncoast Transit AuthorityFlixbus USAGreyhound USAKey West Transit18h 28m • 3 changes

Frequently asked questions

Want to know about travelling from St. Petersburg to Florida Keys? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.

Map of how to get from St. Petersburg to Florida Keys.ExpandLaunch map view
  • Distance: 456.5 mi
  • Duration: 20h 29m

What companies run services between St. Petersburg, FL, USA and Florida Keys, FL, USA?

You can take a bus from 2Nd Ave Ne + Beach Drive to Florida Keys via Marion Transit Parking Lot, Tampa Bus Station, Miami Airport Station, Big Pine Key, Big Pine Key - CVS / MM30, and Sugarloaf Key - Lower - Sugarloaf Lodge in around 14h 28m.

Operators