How far is Merritt Island, FL from Port Saint Lucie, FL?
The driving distance from Merritt Island, FL to Port Saint Lucie, FL is about 110.9 miles (178.4 km), with a travel time of about 01h 46m by car.
- The straight-line flight distance is about 88.2 miles (142 km).
- For a round trip, plan for roughly 03h 33m 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 01h 46m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Human settlement in Brevard County, Florida, United States of America
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 Merritt Island and Port Saint Lucie.
Turn-by-Turn Driving Directions
Step-by-step road directions between Merritt Island and Port Saint Lucie.
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1
Start on Roberts Road
1.1 km · 4 min · Roberts Road
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2
Turn right onto Kennedy Parkway North
3.8 mi · 6 min · Kennedy Parkway North
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3
Continue on North Courtenay Parkway
6.9 mi · 11 min · North Courtenay Parkway
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4
Take the ramp right toward FL 528 West
1299 ft · 32 sec
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5
Merge slight left onto Bennett Causeway
2.7 mi · 4 min · Bennett Causeway
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6
Continue on Beachline Expressway
1 km · 53 sec · Beachline Expressway
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7
Take the exit slight right toward Clearlake Road
1718 ft · 59 sec
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8
Turn straight onto East Industry Road
1754 ft · 37 sec · East Industry Road
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9
Turn right
1082 ft · 23 sec
-
10
Continue straight
2.6 mi · 4 min
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11
Continue straight
809 ft · 20 sec
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12
Take the ramp slight left toward I 95 South: Miami
1445 ft · 36 sec
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13
Merge slight left
82 mi · 1 hr 28 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 Merritt Island 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
82 mi · 01h 28m
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 Merritt Island 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 Merritt Island to Port Saint Lucie?
The road trip is about 110.9 miles (178.4 km) and usually takes 01h 46m 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?
Grant-Valkaria is a useful midpoint, sitting about 53 miles from Merritt Island and 57.9 miles from Port Saint Lucie.
How much longer is the road route than the straight-line distance?
The direct path is about 88.2 miles (142 km), while the road route adds roughly 22.7 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:56 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.22 one way or $32.44 round trip. Estimated CO2 is about 34.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Merritt Island and Partly Sunny then Chance Showers And Thunderstorms near Port Saint Lucie.
Stop Ideas Near Grant-Valkaria
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 Grant-Valkaria.
Okeechobee
Kissimmee
Sebring
Orlando Health/Amtrak
Flight Path Map
This map shows the direct air route between Merritt Island and Port Saint Lucie. Straight-line distance: 88.25 mi (142.03 km).
#1 Merritt Island
Census designated place in Brevard County, Florida, United States
| Population | 34,743 |
| Coordinates | 28.5391700, -80.6720000 |
| Altitude | 1 |
| 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: 178 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 41m |
| 40 mph (64.37 km/h) | 02h 46m |
| 50 mph (80.47 km/h) | 02h 13m |
| 60 mph (96.56 km/h) | 01h 50m |
| 70 mph (112.65 km/h) | 01h 35m |
| 80 mph (129 km/h) | 01h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $16.22 | $32.44 |
| Mid-grade | $4.60 | $17.97 | $35.94 |
| Premium | $4.90 | $19.14 | $38.29 |
| Diesel | $4.35 | $17.01 | $34.02 |
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.