Port Saint Lucie to Fleming Island is 230 miles and takes about 4 hours 26 minutes via I 95 and FL 16, with a fuel budget near $36 and enough daylight to finish in a day. This trip stays within Florida, making it a convenient local drive. Given its mostly highway profile, this route is best suited for those who prefer covering distance efficiently. You'll spend most of your time on the interstate, so pack some good audiobooks or podcasts for the longer stretches. The drive is straightforward, connecting two points within the same state.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
115.2 miles from Port Saint Lucie, FL
A natural place for your longest stop of the day
, about 2h 7m into the drive
.
Main Roads
Road
Distance
Duration
I 95
197 mi
3h 31m
FL 16
12.2 mi
17m
Orange Avenue
6.2 mi
10m
Crosstown Parkway
4.1 mi
7m
FL 13
4 mi
5m
US 17
2.3 mi
3m
Pensacola-St. Augustine Highway
2 mi
3m
Town Center Boulevard
0.5 mi
1m
Longest stretch:
I 95
— 197 mi, about 3h 31m
Traffic on I-95
Hour-of-day weekday pattern from 34 FHWA count stations on your route.
Peak
4 PM
~2,232 veh/hr typical
· worst 2,977
Quietest
2 AM
~233 veh/hr
Peak-to-quiet ratio
9.6×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Saint Lucie, FL and Fleming Island, FL.
1
Start on Southwest Carter Avenue
215 ft·15 sec·Southwest Carter Avenue
2
Turn left onto CR 615
0.2 mi·20 sec·Southeast Airoso Boulevard
3
Turn left onto Crosstown Parkway
4.1 mi·7 min·Crosstown Parkway
Use the left lane.
4
Take the ramp
0.3 mi·43 sec
Toward I 95 North: Daytona BeachUse the right lane.
5
Merge onto I 95
197 mi·3 hr 31 min·I 95
Use the straight / slight right lanes.
6
Take the exit
0.3 mi·42 sec
Exit 318Toward FL 16: Saint Augustine, Green Cove Springs
7
Merge onto FL 16
319 ft·6 sec·Charles Usinas Memorial Highway
8
Continue on FL 16
2.0 mi·3 min·Pensacola-St. Augustine Highway
Use the left / straight lanes.
9
Continue on FL 16
5.2 mi·7 min·FL 16
Use the straight lane.
10
Turn straight onto CR 16A
0.2 mi·18 sec·CR 16A
11
Turn left onto Silverleaf Parkway
106 ft·4 sec·Silverleaf Parkway
12
Continue on FL 16
1.7 mi·2 min·FL 16
13
At end of road, turn right onto FL 13; FL 16
4.0 mi·5 min·FL 13; FL 16
14
Turn slight left onto FL 16
0.3 mi·28 sec·FL 16
15
At end of road, turn left onto FL 16
5.1 mi·7 min·FL 16
16
Turn right onto US 17; FL 16
6.2 mi·10 min·Orange Avenue
Use the left lane.
17
Continue on US 17
394 ft·6 sec·US 17
18
Continue on US 17
2.2 mi·3 min·US 17
19
Turn left onto East West Parkway
0.4 mi·1 min·East West Parkway
20
Turn left onto Town Center Boulevard
0.5 mi·1 min·Town Center Boulevard
21
Enter roundabout
22 ft·0 sec
22
Continue
54 ft·2 sec
23
Continue on Radar Road
0.3 mi·1 min·Radar Road
24
Turn right
0.1 mi·40 sec
25
Arrive at destination
Trip Plan
For this 4.5-hour drive, leaving in the morning is ideal to maximize daylight and avoid potential afternoon traffic. Since it's a single-day trip, you have flexibility with your departure time. There's one recommended stop, so plan to take a break about halfway through your journey on I 95 to stretch your legs and refuel if needed. Keep an eye on your fuel gauge, as the longest stretch without a major exit is nearly 200 miles on the interstate. The final approach into Fleming Island involves local roads, so be prepared for slower speeds and more turns.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 115.2 miles from Port Saint Lucie, FL, or about 2h 7m into the drive.
The longest continuous stretch on this route runs about 197 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 51 miles or 58m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 115.2 miles or 2h 7m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 26m
Traffic, exits, and arrival timing usually matter more near Fleming Island, FL than in the middle of the route.
Before You Leave
+
Open the route before leaving Port Saint Lucie, FL so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Port Saint Lucie, FL
This is one driving day of about 230.3 miles and 4h 26m.
Your first comfortable stop window is around 51 miles from Port Saint Lucie, FL.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 95 for about 197 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 12
5 decision points cluster between mile 0 and 211.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|CR 615 / Southeast Airoso Boulevard
Turn left onto CR 615 / Southeast Airoso Boulevard
Navigation decision point
5
4.3 mi into trip|~8m in
Take the ramp toward I 95 North: Daytona Beach
Lane positioning matters here
Use the right lane.
Toward I 95 North: Daytona Beach
5
4.7 mi into trip|~8m in|I 95
Merge onto I 95
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
201.6 mi into trip|~3h 40m in
Take the exit toward FL 16: Saint Augustine, Green Cove Springs
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 318
Toward FL 16: Saint Augustine, Green Cove Sprin...
5
211.1 mi into trip|~3h 54m in|FL 13; FL 16
At end of road, turn right onto FL 13; FL 16
Navigation decision point
Fuel & Cost
Regular Gas
$34.86 one way
$69.72 round trip
$3.85/gal25.4 MPG avg81 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$38.25
$76.51
premium
$4.55
$41.25
$82.51
diesel
$4.80
$43.48
$86.97
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$35
Meals
$25–$50
Total
$60–$85
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 80.6 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $24 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
69.1
0
$24.18
$11.05
Efficient EV
57.6
0
$20.15
$9.21
EV Truck/SUV
92.1
1
$32.24
$14.74
Gas CO2
81 kg
EV CO2
27 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 18, 2026
Origin
Port Saint Lucie, FL
Morning
in Port Saint Lucie on Sunday
Local time
6:39 AM
EDT
Current temp
93°F
Chance Showers And Thunderstorms
SSE 10 mph41% chanceLive forecast
Destination
Fleming Island, FL
Morning
in Fleming Island on Sunday
Local time
6:39 AM
EDT
Current temp
94°F
Mostly Sunny
S 10 mph11% chanceLive forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 26m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Castillo de San Marcos National Monument
National Monument
Built by the Spanish in St. Augustine to defend Florida and the Atlantic trade route, Castillo de San Marcos National Monument preserves the oldest masonry fortification in the continental United Stat...
5 mi from route
~14 min detour
$15
near mile 198.6
Fort Matanzas National Monument preserves the fortified coquina watchtower, completed in 1742, which defended the southern approach to the Spanish military settlement of St. Augustine. It also protect...
5 mi from route
~12 min detour
Free
near mile 182.7
Discover a dynamic barrier island shaped by dunes, coastal hammocks, and Mosquito Lagoon. Walk among ancient Timucua shell mounds and connect with thousands of years of human history. Immerse yourself...
10 mi from route
~24 min detour
$25
near mile 119.1
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is primarily highway, with 96% of the driving on interstates and major roads. Expect a long, continuous stretch of 197 miles on I 95 before transitioning to surface roads. You'll notice a high density of exits along the interstate portion, so stay alert for traffic merging on and off. The final segment will involve navigating local roads, including Orange Avenue and FL 16, as you approach your destination.
96% highway — fuel and pacing are the main things to plan.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 197 mi on I 95.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 95 and FL 16. You will hit about 12 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near CR 615 / Southeast Airoso Boulevard.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 230.3 miles you will encounter 12 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (CR 615 / Southeast Airoso Boulevard): Navigation decision point; at 4.3 miles: Lane positioning matters here; at 4.7 miles (I 95): Merge point - match speed before joining. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
47 ft6 ft
Total Climb
69 ft
Total Descent
64 ft
Highest Point
47 ft
~197.4 mi in
Elevation Range
41 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Port Saint Lucie, FL to Fleming Island, FL, road signs begin pointing toward Green Cove Springs along the way.
Port St. Lucie is a sprawling tropical city on the Treasure Coast of Florida. The population is 202,000 and 438,000 in its metropolitan area (2019). Residents refer to the city by its initials, PSL. The spring training home of the New York Mets, this city has many fun activities if you know where to look; the new downtown area is in its infancy, but once complete will bring more activities for residents and visitors.
Doable as a same-day drive at 4h 26m. Total distance: 230.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 26m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 197 miles on I 95. The full list of main roads is in the Roads section above.
Yes — we found about 22 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
The main spots that need attention: near the start (CR 615 / Southeast Airoso Boulevard): Navigation decision point; at 4.3 miles: Lane positioning matters here; at 4.7 miles (I 95): Merge point - match speed before joining. Lane positioning matters here.
Yes — Castillo de San Marcos National Monument, Fort Matanzas National Monument and Canaveral National Seashore. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.4 hours each way, an in-and-out day trip would put you behind the wheel for 8.9 hours — manageable with a long break at Fleming Island, FL, but most travelers stay overnight.
