The drive from Miami to Key West takes approximately 3h 30min, covering 160 miles via I-95. Under normal conditions, expect to spend around $18 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 4–5+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic Estimate
🟢 Light traffic
2h 58m
🔵 Typical
3h 30min
🔴 Heavy traffic
5h 4m
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
Trip Details
Distance160 miles (257 km)
Drive Time3h 30min
RouteI-95
Best TimeLate evening (8-10 PM)
Fuel Costs
Gas (30 mpg)~5.3 gallons
Est. Cost$18
Route Tips: I-95
One of the busiest highways on the East Coast. Expect congestion near major cities like New York, Philadelphia, and Washington DC.
This trip can typically be done on a single tank of gas.
Best Time to Drive from Miami to Key West
The best time to drive from Miami to Key West is late evening (8-10 pm). Weekday mornings before 7 AM or evenings after 7 PM typically have the lightest traffic. Avoid Friday afternoons and Sunday evenings when possible.
🟢 Best:Late evening (8-10 PM)
🔴 Avoid:Rush hour (4-7 PM)
Driving vs Flying
🚗 Driving
3h 30min
~$18 gas
✈️ Flying
2h 49m
~$80–$150 flight
✈️ Flying is faster when you factor in airport time. Flight time is ~19 min but add ~2.5 hours for check-in, security, and boarding.
All Travel Options
🚗 Drive
3h 30min
~$18
🚌 Bus
3h 33m
~$15–$30
🚂 Train
2h 55m
~$20–$48
Estimated times and prices. Bus/train availability varies by route. Driving gives the most flexibility for stops and schedules.
Frequently Asked Questions
How long does it take to drive from Miami to Key West?
The drive from Miami to Key West takes approximately 3h 30min covering 160 miles via I-95. Actual time may vary based on traffic, weather, and road conditions.
How much does gas cost for Miami to Key West?
At 30 MPG and $3.50/gallon, expect to spend approximately $18 on gas for this 160-mile trip. You'll need about 5.3 gallons of fuel.
What is the best time to drive from Miami to Key West?
Late evening (8-10 PM) to avoid heavy traffic. Weekday mornings before 7 AM or evenings after 7 PM typically have less congestion.
Are there tolls on the Miami to Key West route?
There may be minor tolls (around $4) on parts of this route. Some sections have toll-free alternatives.
