Spanning 199.3 miles, the journey from Saint Augustine to Port Saint Lucie is a straightforward trek down the Florida coast. You can expect to spend about 3 hours and 46 minutes behind the wheel, making this a very manageable single-day trip. With a fuel budget of approximately $33, it is an affordable excursion for those looking to traverse the region efficiently. You will primarily navigate via I-95, transitioning onto local roads like South Ponce de Leon Boulevard and Crosstown Parkway as you near your destination. Because the travel time is under four hours, you likely won't need to book an overnight stay, allowing for maximum flexibility in your schedule.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
99.7 miles from Saint Augustine, FL
A natural place for your longest stop of the day
, about 1h 55m into the drive
.
Main Roads
Road
Distance
Duration
I 95
177.4 mi
3h 10m
South Ponce de Leon Boulevard
15.4 mi
21m
Crosstown Parkway
4.3 mi
7m
North Ponce de Leon Boulevard
1 mi
2m
Carrera Street
0.4 mi
1m
Southeast Airoso Boulevard
0.2 mi
<1m
Southwest Carter Avenue
<0.1 mi
<1m
Cordova Street
<0.1 mi
<1m
Longest stretch:
I 95
— 177.4 mi, about 3h 10m
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Augustine, FL and Port Saint Lucie, FL.
1
Start on Cordova Street
84 ft·8 sec·Cordova Street
2
Turn left onto Carrera Street
0.4 mi·1 min·Carrera Street
3
At end of road, turn left onto US 1
1.0 mi·2 min·North Ponce de Leon Boulevard
4
Keep slight left at fork onto US 1
15 mi·21 min·South Ponce de Leon Boulevard
5
Take the ramp
0.3 mi·42 sec
Toward I 95 South: Miami
6
Merge onto I 95
177 mi·3 hr 10 min·I 95
Use the straight / slight right lanes.
7
Take the exit
0.4 mi·48 sec
Exit 120Toward Crosstown ParkwayUse the slight right lane.
8
Turn left onto Crosstown Parkway
4.3 mi·7 min·Crosstown Parkway
Use the straight lane.
9
Turn right onto CR 615
0.2 mi·20 sec·Southeast Airoso Boulevard
10
Turn right onto Southwest Carter Avenue
215 ft·9 sec·Southwest Carter Avenue
11
Arrive at destination
Southwest Carter Avenue
Trip Plan
To make the most of your 3 hour and 46 minute drive, consider departing early in the morning to avoid peak traffic patterns often found on I-95. Since the itinerary includes one planned stop, use that break strategically to stretch your legs after the long 177.4-mile interstate stint. Keep an eye on your fuel gauge during the main highway portion, as prices can fluctuate significantly between exits. Given the total distance of nearly 200 miles, you have plenty of time to reach your destination before sunset if you leave by midday. Planning your refueling stop around the midpoint of the journey will help you maintain a smooth pace for the remainder of your trip.
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 99.7 miles from Saint Augustine, FL, or about 1h 55m into the drive.
The longest continuous stretch on this route runs about 177.4 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 44 miles or 55m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 99.7 miles or 1h 55m 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 3m
Traffic, exits, and arrival timing usually matter more near Port Saint Lucie, FL than in the middle of the route.
Before You Leave
+
Open the route before leaving Saint Augustine, 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 Saint Augustine, FL
This is one driving day of about 199.3 miles and 3h 46m.
Your first comfortable stop window is around 44 miles from Saint Augustine, 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 177.4 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 9
5 decision points cluster between mile 1.4 and 199.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
1.4 mi into trip|~3m in|US 1 / South Ponce de Leon Boulevard
Keep slight left at fork onto US 1 / South Ponce de Leon Boulevard
Highway fork - watch signs carefully
5
17.1 mi into trip|~26m in|I 95
Merge onto I 95
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
194.5 mi into trip|~3h 37m in
Take the exit toward Crosstown Parkway
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 120
Toward Crosstown Parkway
5
194.8 mi into trip|~3h 37m in|Crosstown Parkway
Turn left onto Crosstown Parkway
Lane positioning matters here
Use the straight lane.
5
199.3 mi into trip|~3h 46m in|Southwest Carter Avenue
Turn right onto Southwest Carter Avenue
Navigation decision point
Fuel & Cost
Regular Gas
$31.72 one way
$63.45 round trip
$4.04/gal25.4 MPG avg70 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.40
$34.51
$69.02
premium
$4.72
$37.06
$74.12
diesel
$5.61
$44.00
$88.01
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$32
Meals
$25–$50
Total
$57–$82
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 69.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $21 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
59.8
0
$20.93
$9.57
Efficient EV
49.8
0
$17.44
$7.97
EV Truck/SUV
79.7
0
$27.90
$12.76
Gas CO2
70 kg
EV CO2
23 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 Apr 18, 2026
Origin
Saint Augustine, FL
Morning
in Saint Augustine on Sunday
Local time
6:24 AM
EDT
Current temp
62°F
Unavailable
Live forecast
Destination
Port Saint Lucie, FL
Morning
in Port Saint Lucie on Sunday
Local time
6:24 AM
EDT
Current temp
66°F
Partly Cloudy
0 mph1% chanceLive forecast
Fire Weather Watch
Fire Weather Watch issued April 17 at 2:19PM EDT until April 18 at 8:00PM EDT by NWS Tallahassee FL
Fire Weather Watch
Fire Weather Watch issued April 17 at 2:19PM EDT until April 20 at 8:00PM EDT by NWS Tallahassee FL
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
4 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
3h 46m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
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...
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...
4 mi from route
~10 min detour
Free
near mile 13.7
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...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This trip is heavily highway-focused, with 91% of your travel occurring on major thoroughfares. The core of your drive is a long, uninterrupted 177.4-mile stretch on I-95, which keeps the pace consistent but requires steady focus. Expect a utilitarian driving experience that prioritizes speed and directness over winding scenic detours. As you exit the interstate and transition onto local infrastructure, the environment shifts from high-speed transit to the suburban streets of Port Saint Lucie. It is a no-nonsense route designed to get you from point A to point B with minimal complexity.
91% highway — fuel and pacing are the main things to plan.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 177.4 mi on I 95.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on I 95 and South Ponce de Leon Boulevard. There are only a few real navigation decisions along the way. The trickiest moment comes around 1.4 miles in near US 1 / South Ponce de Leon Boulevard.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 3h 46m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 1.4 miles (US 1 / South Ponce de Leon Boulevard): Highway fork - watch signs carefully; at 17.1 miles (I 95): Merge point - match speed before joining. Lane positioning matters here; at 194.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 46m. Total distance: 199.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
The longest stretch is about 177.4 miles on I 95. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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: at 1.4 miles (US 1 / South Ponce de Leon Boulevard): Highway fork - watch signs carefully; at 17.1 miles (I 95): Merge point - match speed before joining. Lane positioning matters here; at 194.5 miles: Exit ramp - move to the correct lane early. 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 3.8 hours each way, an in-and-out day trip would put you behind the wheel for 7.5 hours — manageable with a long break at Port Saint Lucie, FL, but most travelers stay overnight.
