How far is Seaside, FL from Port Saint Lucie, FL?
The driving distance from Seaside, FL to Port Saint Lucie, FL is about 516.9 miles (831.9 km), with a travel time of about 07h 46m by car.
- The straight-line flight distance is about 408.2 miles (656.9 km).
- For a round trip, plan for roughly 15h 32m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CST.
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 07h 46m.
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.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Seaside and Port Saint Lucie.
Turn-by-Turn Driving Directions
Step-by-step road directions between Seaside and Port Saint Lucie.
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1
Start on East County Highway 30A
1.9 mi · 5 min · East County Highway 30A
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2
Turn right onto County Highway 283
1.7 mi · 4 min · County Highway 283
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3
Turn left onto US Highway 98 West
1.5 mi · 2 min · US Highway 98 West
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4
Turn right onto US Highway 331 South
23.8 mi · 31 min · US Highway 331 South
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5
Take the ramp slight right toward I 10 East: Tallahassee
2020 ft · 49 sec
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6
Merge slight left
211 mi · 3 hr 46 min
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7
Take the exit slight right toward I-75 South: Tampa
1959 ft · 37 sec
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8
Merge slight left
107.2 mi · 1 hr 55 min
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9
Take the exit slight left toward Florida's Turnpike South, Orlando
165.2 mi · 2 hr 57 min · Florida's Turnpike
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10
Take the exit slight right toward Port Saint Lucie
1 mi · 3 min
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11
Continue on Southwest Bayshore Boulevard
147 m · 15 sec · Southwest Bayshore Boulevard
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12
Turn right onto Southwest Port Saint Lucie Boulevard
1.4 km · 2 min · Southwest Port Saint Lucie Boulevard
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13
Turn left onto Southeast Airoso Boulevard
1.6 mi · 3 min · Southeast Airoso Boulevard
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14
Turn left onto Southwest Carter Avenue
66 m · 9 sec · Southwest Carter Avenue
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15
Arrive at your destination
0 m · 1 sec · Southwest Carter Avenue
Car Route Details
A richer read on the saved driving route between Seaside and Port Saint Lucie.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 10 East
Merge slight left
211 mi · 03h 46m
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.
Mostly Sunny leaving Seaside and Mostly Sunny near Port Saint Lucie.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Seaside to Port Saint Lucie?
The road trip is about 516.9 miles (831.9 km) and usually takes 07h 46m 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?
Fort White is a useful midpoint, sitting about 258.3 miles from Seaside and 258.7 miles from Port Saint Lucie.
How much longer is the road route than the straight-line distance?
The direct path is about 408.2 miles (656.9 km), while the road route adds roughly 108.7 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 CST. 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 $69.93 one way or $139.86 round trip. Estimated CO2 is about 162.1 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Seaside and Port Saint Lucie, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Seaside and Mostly Sunny near Port Saint Lucie.
Stop Ideas Near Fort White
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 Fort White.
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Flight Path Map
This map shows the direct air route between Seaside and Port Saint Lucie. Straight-line distance: 408.17 mi (656.88 km).
#1 Seaside
Seaside is a place in Florida, United States.
| Population | 0 |
| Coordinates | 30.3210300, -86.1416100 |
| Altitude | 4 |
| 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: 832 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 17h 13m |
| 40 mph (64.37 km/h) | 12h 55m |
| 50 mph (80.47 km/h) | 10h 20m |
| 60 mph (96.56 km/h) | 08h 36m |
| 70 mph (112.65 km/h) | 07h 23m |
| 80 mph (129 km/h) | 06h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.83 | $69.93 | $139.86 |
| Mid-grade | $4.32 | $78.80 | $157.59 |
| Premium | $4.66 | $85.05 | $170.11 |
| Diesel | $5.94 | $108.36 | $216.73 |
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 · Nov 06, 2026