How far is Lake Mary, FL from Port Saint Lucie, FL?
The driving distance from Lake Mary, FL to Port Saint Lucie, FL is about 143.3 miles (230.6 km), with a travel time of about 02h 09m by car.
- The straight-line flight distance is about 117.2 miles (188.6 km).
- For a round trip, plan for roughly 04h 18m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 09m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Brevard County, Florida, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Partly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Lake Mary and Port Saint Lucie.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lake Mary and Port Saint Lucie.
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1
Start on Palmetto Street
54 m · 8 sec · Palmetto Street
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2
Continue on Palmetto Street
735 ft · 34 sec · Palmetto Street
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3
Turn left onto West Lake Mary Boulevard
1.9 mi · 3 min · West Lake Mary Boulevard
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4
Continue on East Lake Mary Boulevard
1.1 mi · 2 min · East Lake Mary Boulevard
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5
Take the ramp right toward Orlando
1216 ft · 32 sec
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6
Continue on FL 417 Toll South
1722 ft · 44 sec
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7
Merge slight left onto Seminole Expressway
11.1 mi · 12 min · Seminole Expressway
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8
Continue on Central Florida GreeneWay
11.3 mi · 12 min · Central Florida GreeneWay
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9
Take the exit slight right toward FL 528 Toll: International Airport, Cocoa
2445 ft · 60 sec
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10
Keep slight left to continue on FL 528 East: Cocoa, Kennedy Space Center
1.1 mi · 2 min
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11
Merge slight left onto Beachline Expressway
25.3 mi · 27 min · Beachline Expressway
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12
Take the exit slight right toward I 95 South: Miami
1.3 km · 2 min
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13
Merge slight left
84.4 mi · 1 hr 30 min
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14
Take the exit slight right toward Crosstown Parkway
1872 ft · 49 sec
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15
Turn left onto Crosstown Parkway
4.3 mi · 8 min · Crosstown Parkway
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16
Turn right onto Southeast Airoso Boulevard
916 ft · 21 sec · Southeast Airoso Boulevard
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17
Turn right onto Southwest Carter Avenue
66 m · 9 sec · Southwest Carter Avenue
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18
Arrive at your destination
0 m · 1 sec · Southwest Carter Avenue
Car Route Details
A richer read on the saved driving route between Lake Mary and Port Saint Lucie.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 95 South
Merge slight left
84.4 mi · 01h 30m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Cloudy leaving Lake Mary and Partly Sunny then Chance Showers And Thunderstorms near Port Saint Lucie.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lake Mary to Port Saint Lucie?
The road trip is about 143.3 miles (230.6 km) and usually takes 02h 09m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Palm Shores is a useful midpoint, sitting about 71.6 miles from Lake Mary and 71.7 miles from Port Saint Lucie.
How much longer is the road route than the straight-line distance?
The direct path is about 117.2 miles (188.6 km), while the road route adds roughly 26.1 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:12 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.99 one way or $41.98 round trip. Estimated CO2 is about 45 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Lake Mary and Partly Sunny then Chance Showers And Thunderstorms near Port Saint Lucie.
Stop Ideas Near Palm Shores
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 Palm Shores.
Kissimmee
Orlando Health/Amtrak
Winter Park
Sanford
Flight Path Map
This map shows the direct air route between Lake Mary and Port Saint Lucie. Straight-line distance: 117.16 mi (188.55 km).
#1 Lake Mary
City in Seminole County, Florida, United States
| Population | 17,486 |
| Coordinates | 28.7588800, -81.3178400 |
| Altitude | 19 |
| Country | United States |
#2 Port Saint Lucie
The second most populous city in St.
| Population | 209,715 |
| Coordinates | 27.2939300, -80.3503300 |
| Altitude | 5 |
| Country | United States |
End: Southwest Carter Avenue (-80.350328, 27.294381)
Estimated Travel Time
Distance: 231 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 46m |
| 40 mph (64.37 km/h) | 03h 34m |
| 50 mph (80.47 km/h) | 02h 51m |
| 60 mph (96.56 km/h) | 02h 23m |
| 70 mph (112.65 km/h) | 02h 02m |
| 80 mph (129 km/h) | 01h 47m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $20.99 | $41.98 |
| Mid-grade | $4.60 | $23.26 | $46.51 |
| Premium | $4.90 | $24.77 | $49.55 |
| Diesel | $4.35 | $22.01 | $44.02 |
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 · Jun 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.