How far is Port Saint Lucie, FL from Longboat Key, FL?
The driving distance from Port Saint Lucie, FL to Longboat Key, FL is about 164.7 miles (265 km), with a travel time of about 03h 50m by car.
- The straight-line flight distance is about 141.9 miles (228.4 km).
- For a round trip, plan for roughly 07h 40m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 03h 50m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy then Chance Showers And Thunderstorms
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Port Saint Lucie and Longboat Key.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Saint Lucie and Longboat Key.
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1
Start on Southwest Carter Avenue
66 m · 15 sec · Southwest Carter Avenue
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2
Turn left onto Southeast Airoso Boulevard
913 ft · 20 sec · Southeast Airoso Boulevard
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3
Turn left onto Crosstown Parkway
4.1 mi · 8 min · Crosstown Parkway
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4
Take the ramp slight right toward I 95 North: Daytona Beach
1775 ft · 43 sec
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5
Merge slight left
4.9 mi · 5 min
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6
Take the exit slight right toward CR 712: Midway Road
1956 ft · 48 sec
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7
Keep slight left to continue on CR 712: Midway Road
124 m · 12 sec
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8
Turn straight onto West Midway Road
4.9 mi · 9 min · West Midway Road
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9
Turn left onto Okeechobee Road
21.1 mi · 25 min · Okeechobee Road
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10
Keep slight right
67.3 mi · 1 hr 29 min
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11
Turn straight onto East Hickory Street
2.6 mi · 5 min · East Hickory Street
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12
Turn left
33.6 mi · 44 min
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13
Enter the roundabout and take exit 2 toward State Road 72
32 m · 2 sec · State Road 72
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14
Exit the roundabout onto State Road 72
1.3 mi · 2 min · State Road 72
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15
Continue on Clark Road
156 m · 11 sec · Clark Road
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16
Enter the roundabout and take exit 2 toward Clark Road
35 m · 2 sec · Clark Road
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17
Exit the roundabout onto Clark Road
1.5 mi · 2 min · Clark Road
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18
Take the ramp slight right toward I 75 North: Tampa
1.2 km · 2 min
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19
Merge slight left
3.7 mi · 4 min
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20
Take the exit slight right toward FL 780: Sarasota, St Armads
1844 ft · 45 sec
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21
Keep slight left to continue on FL 780 West
794 ft · 24 sec
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22
Continue on Fruitville Road
6.2 mi · 11 min · Fruitville Road
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23
Enter the roundabout and take exit 2 toward Tamiami Trail
78 m · 5 sec · Tamiami Trail
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24
Exit the roundabout onto Tamiami Trail
760 ft · 20 sec · Tamiami Trail
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25
Turn slight right onto sr 789
756 ft · 25 sec
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26
Turn straight onto John Ringling Boulevard
2.2 mi · 5 min · John Ringling Boulevard
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27
Enter the roundabout and take exit 1 toward Saint Armands Circle
32 m · 4 sec · Boulevard of the Presidents
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28
Exit the rotary onto Boulevard of the Presidents
2371 ft · 1 min · Boulevard of the Presidents
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29
Continue on John Ringling Parkway
3116 ft · 1 min · John Ringling Parkway
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30
Keep slight left to continue on John Ringling Parkway
1101 ft · 29 sec · John Ringling Parkway
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31
Continue on Gulf of Mexico Drive
7.3 mi · 13 min · Gulf of Mexico Drive
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32
Arrive at your destination
0 m · 1 sec · Gulf of Mexico Drive
Car Route Details
A richer read on the saved driving route between Port Saint Lucie and Longboat Key.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Okeechobee Road
Keep slight right
67.3 mi · 01h 29m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Cloudy then Chance Showers And Thunderstorms leaving Port Saint Lucie and Partly Sunny then Slight Chance Showers And Thunderstorms near Longboat Key.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Port Saint Lucie to Longboat Key?
The road trip is about 164.7 miles (265 km) and usually takes 03h 50m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Placid Lakes is a useful midpoint, sitting about 82.3 miles from Port Saint Lucie and 82.4 miles from Longboat Key.
How much longer is the road route than the straight-line distance?
The direct path is about 141.9 miles (228.4 km), while the road route adds roughly 22.8 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 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 9:20 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.10 one way or $48.20 round trip. Estimated CO2 is about 51.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy then Chance Showers And Thunderstorms around Port Saint Lucie and Partly Sunny then Slight Chance Showers And Thunderstorms near Longboat Key.
Stop Ideas Near Placid Lakes
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 Placid Lakes.
Sebring
Okeechobee
Port Charlotte, Florida
Fort Myers, Florida
Flight Path Map
This map shows the direct air route between Port Saint Lucie and Longboat Key. Straight-line distance: 141.91 mi (228.39 km).
#1 Port Saint Lucie
The second most populous city in St.
| Population | 209,715 |
| Coordinates | 27.2939300, -80.3503300 |
| Altitude | 5 |
| Country | United States |
#2 Longboat Key
Town in Florida
| Population | 7,303 |
| Coordinates | 27.4125400, -82.6589900 |
| Altitude | 1 |
| Country | United States |
End: Longboat Key (-82.65899, 27.41254)
Estimated Travel Time
Distance: 265 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 29m |
| 40 mph (64.37 km/h) | 04h 07m |
| 50 mph (80.47 km/h) | 03h 17m |
| 60 mph (96.56 km/h) | 02h 44m |
| 70 mph (112.65 km/h) | 02h 21m |
| 80 mph (129 km/h) | 02h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $24.10 | $48.20 |
| Mid-grade | $4.60 | $26.70 | $53.41 |
| Premium | $4.90 | $28.45 | $56.89 |
| Diesel | $4.35 | $25.27 | $50.55 |
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 · May 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.