Key West to St. Petersburg
Regional driving route
How Long Is the Drive from Key West to St Petersburg?
The drive from Key West to St Petersburg takes approximately 5h 22m, covering 296 miles via the highway. Under normal conditions, expect to spend around $34 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 7–8+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic Estimate
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
Route Details
Cost Breakdown
Route Tips: I-75
Plan rest stops every 2-3 hours on longer drives. Check traffic conditions before departure and keep your tank above quarter-full.
This trip can typically be done on a single tank of gas.
Best Time to Drive from Key West to St Petersburg
The best time to drive from Key West to St Petersburg is early morning (6-8 am). Weekday mornings before 7 AM or evenings after 7 PM typically have the lightest traffic. Avoid Friday afternoons and Sunday evenings when possible.
Driving vs Flying
✈️ Flying is faster when you factor in airport time. Flight time is ~36 min but add ~2.5 hours for check-in, security, and boarding.
All Travel Options
Estimated times and prices. Bus/train availability varies by route. Driving gives the most flexibility for stops and schedules.