How far is Jacksonville, FL from Key Biscayne, FL?
The driving distance from Jacksonville, FL to Key Biscayne, FL is about 351.6 miles (565.9 km), with a travel time of about 06h 38m by car.
- The straight-line flight distance is about 333.2 miles (536.2 km).
- For a round trip, plan for roughly 13h 16m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 06h 38m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Florida, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Jacksonville and Key Biscayne.
Turn-by-Turn Driving Directions
Step-by-step road directions between Jacksonville and Key Biscayne.
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1
Start on Union Street
596 ft · 21 sec · Union Street
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2
Turn right onto Newnan Street
1965 ft · 1 min · Newnan Street
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3
Turn right onto East Forsyth Street
770 ft · 24 sec · East Forsyth Street
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4
Turn left onto Main Street
2507 ft · 1 min · Main Street
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5
Take the ramp straight toward I 95 South
1.5 km · 2 min
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6
Keep slight right to continue on I 95, US 1 South, FL 5 South: Daytona Beach, Philips Highway
1165 ft · 28 sec
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7
Keep slight left to continue on I 95 South: Daytona Beach
1093 ft · 27 sec
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8
Merge slight left
219.5 mi · 3 hr 57 min
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9
Take the exit slight right toward FL 70: Okeechobee, Fort Pierce
2396 ft · 58 sec
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10
Keep slight right to continue on FL 70 West: Okeechobee
150 m · 12 sec
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11
Merge slight left onto Okeechobee Road
2745 ft · 58 sec · Okeechobee Road
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12
Take the ramp left
1090 ft · 35 sec
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13
Keep slight left to continue on Miami, Florida's Turnpike South
2588 ft · 1 min
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14
Merge slight left onto Florida's Turnpike
108.4 mi · 2 hr · Florida's Turnpike
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15
Take the exit slight right toward I 95, US 441, SR 826 West
1760 ft · 43 sec
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16
Keep slight left to continue on I 95, US 441
1.3 km · 2 min
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17
Keep slight left to continue on I 95 South
752 ft · 18 sec
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18
Merge slight left
11.4 mi · 15 min
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19
Take the exit slight right toward Rickenbacker Causeway, Key Biscayne
1013 ft · 27 sec
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20
Continue on Mary Brickell Road
129 m · 8 sec · Mary Brickell Road
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21
Continue on Southwest 26th Road
155 m · 16 sec · Southwest 26th Road
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22
Continue on Southeast 26th Road
123 m · 13 sec · Southeast 26th Road
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23
Continue on Rickenbacker Causeway
5.7 mi · 10 min · Rickenbacker Causeway
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24
Continue on Crandon Boulevard
3127 ft · 2 min · Crandon Boulevard
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25
Continue on Crandon Boulevard
103 m · 16 sec · Crandon Boulevard
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26
Arrive at your destination
0 m · 1 sec · Crandon Boulevard
Car Route Details
A richer read on the saved driving route between Jacksonville and Key Biscayne.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 95 South
Merge slight left
219 mi · 03h 57m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Jacksonville and Mostly Cloudy near Key Biscayne.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Jacksonville to Key Biscayne?
The road trip is about 351.6 miles (565.9 km) and usually takes 06h 38m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
West Melbourne is a useful midpoint, sitting about 176.3 miles from Jacksonville and 175.4 miles from Key Biscayne.
How much longer is the road route than the straight-line distance?
The direct path is about 333.2 miles (536.2 km), while the road route adds roughly 18.4 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 7:30 AM EDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $51.48 one way or $102.95 round trip. Estimated CO2 is about 110.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Jacksonville and Mostly Cloudy near Key Biscayne.
Stop Ideas Near West Melbourne
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to West Melbourne.
Kissimmee
Orlando Health/Amtrak
Winter Park
Okeechobee
Flight Path Map
This map shows the direct air route between Jacksonville and Key Biscayne. Straight-line distance: 333.16 mi (536.17 km).
#1 Jacksonville
The thirteenth most populous city in the United States and the center of the Jacksonville metropolitan area.
| Population | 920,570 |
| Coordinates | 30.3321800, -81.6556500 |
| Altitude | 5 |
| Country | United States |
#2 Key Biscayne
Village in Miami-Dade County, Florida
| Population | 12,730 |
| Coordinates | 25.6937100, -80.1628200 |
| Altitude | 1 |
| Country | United States |
End: Key Biscayne (-80.16282, 25.69371)
Estimated Travel Time
Distance: 566 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 42m |
| 40 mph (64.37 km/h) | 08h 47m |
| 50 mph (80.47 km/h) | 07h 01m |
| 60 mph (96.56 km/h) | 05h 51m |
| 70 mph (112.65 km/h) | 05h 01m |
| 80 mph (129 km/h) | 04h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $51.48 | $102.95 |
| Mid-grade | $4.60 | $57.04 | $114.07 |
| Premium | $4.90 | $60.76 | $121.52 |
| Diesel | $4.35 | $53.98 | $107.97 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Florida · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.