How far is St. Petersburg, FL from Lower Grand Lagoon, FL?
The driving distance from St. Petersburg, FL to Lower Grand Lagoon, FL is about 358.8 miles (577.5 km), with a travel time of about 07h 47m by car.
- The straight-line flight distance is about 247.7 miles (398.6 km).
- For a round trip, plan for roughly 15h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
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 47m.
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 in Florida, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between St. Petersburg and Lower Grand Lagoon.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Petersburg and Lower Grand Lagoon.
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1
Start on 34th Street South
2326 ft · 1 min · 34th Street South
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2
Turn right onto 5th Avenue North
1.2 mi · 2 min · 5th Avenue North
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3
Take the ramp left toward I 275 North
1811 ft · 50 sec
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4
Merge slight left
15.2 mi · 19 min
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5
Take the exit slight right toward FL 60: Clearwater, Tampa International Airport, Kennedy Boulevard, West Shore Boulevard
2708 ft · 1 min
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6
Keep slight right to continue on FL 60 East: Kennedy Boulevard, West Shore Boulevard
1762 ft · 42 sec
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7
Continue on West Kennedy Boulevard
1581 ft · 32 sec · West Kennedy Boulevard
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8
Turn left onto Memorial Highway
1.1 km · 1 min · Memorial Highway
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9
Keep slight left to continue on Veterans Expressway
4.5 mi · 6 min · Veterans Expressway
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10
Keep slight left to continue on FL 589 Toll Express Lane
3.2 mi · 4 min · FL 589 Toll Express Lane
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11
Merge slight left onto Veterans Expressway
1 km · 48 sec · Veterans Expressway
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12
Keep slight left to continue on FL 589 Toll Express Lane
4.6 mi · 6 min · FL 589 Toll Express Lane
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13
Merge slight right onto Veterans Expressway
1938 ft · 28 sec · Veterans Expressway
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14
Keep slight left to continue on Suncoast Parkway
54.2 mi · 59 min · Suncoast Parkway
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15
Take the exit slight right toward FL 44: Gulf to Lake Highway
1944 ft · 44 sec
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16
Turn left onto Gulf to Lake Highway
4.8 mi · 8 min · Gulf to Lake Highway
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17
Continue on Northeast 5th Street
1.4 km · 2 min · Northeast 5th Street
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18
Turn right onto Suncoast Boulevard
47 mi · 59 min · Suncoast Boulevard
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19
Continue on Young Boulevard
66.5 mi · 1 hr 26 min · Young Boulevard
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20
Turn left onto Hampton Springs Avenue
38.6 mi · 50 min · Hampton Springs Avenue
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21
Turn right onto Bloxham Cutoff Road
30.8 mi · 42 min · Bloxham Cutoff Road
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22
At the end of the road, turn left onto Jackson Bluff Road
1.1 km · 57 sec · Jackson Bluff Road
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23
Continue on Blountstown Highway
49.2 mi · 1 hr 8 min · Blountstown Highway
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24
Turn left
22.5 mi · 30 min
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25
Turn right onto East 23rd Street
5.4 mi · 9 min · East 23rd Street
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26
Take the ramp slight left
1693 ft · 43 sec
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27
Merge slight left
1.6 mi · 3 min
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28
Take the exit straight
1295 ft · 41 sec
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29
Turn left onto Navy Boulevard
3.3 mi · 6 min · Navy Boulevard
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30
Turn right onto Flint Avenue
148 m · 23 sec · Flint Avenue
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31
At the end of the road, turn right onto Benbow Street
45 m · 7 sec · Benbow Street
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32
Arrive at your destination
0 m · 1 sec · Benbow Street
Car Route Details
A richer read on the saved driving route between St. Petersburg and Lower Grand Lagoon.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Young Boulevard
Continue on Young Boulevard
66.5 mi · 01h 26m
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.
Partly Sunny leaving St. Petersburg and Sunny near Lower Grand Lagoon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Petersburg to Lower Grand Lagoon?
The road trip is about 358.8 miles (577.5 km) and usually takes 07h 47m 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?
Cross City is a useful midpoint, sitting about 179.5 miles from St. Petersburg and 179.3 miles from Lower Grand Lagoon.
How much longer is the road route than the straight-line distance?
The direct path is about 247.7 miles (398.6 km), while the road route adds roughly 111.1 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 6:00 AM to 7:30 AM EDT. 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 $52.51 one way or $105.03 round trip. Estimated CO2 is about 112.5 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between St. Petersburg and Lower Grand Lagoon, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Partly Sunny around St. Petersburg and Sunny near Lower Grand Lagoon.
Stop Ideas Near Cross City
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 Cross City.
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Flight Path Map
This map shows the direct air route between St. Petersburg and Lower Grand Lagoon. Straight-line distance: 247.7 mi (398.64 km).
#1 St. Petersburg
The second most populous city in Florida.
| Population | 253,693 |
| Coordinates | 27.7708600, -82.6792700 |
| Altitude | 13 |
| Country | United States |
#2 Lower Grand Lagoon
Census-designated place in Bay County, Florida
| Population | 3,881 |
| Coordinates | 30.1440900, -85.7507600 |
| Altitude | 3 |
| Country | United States |
End: Lower Grand Lagoon (-85.75076, 30.14409)
Estimated Travel Time
Distance: 578 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 57m |
| 40 mph (64.37 km/h) | 08h 58m |
| 50 mph (80.47 km/h) | 07h 10m |
| 60 mph (96.56 km/h) | 05h 58m |
| 70 mph (112.65 km/h) | 05h 07m |
| 80 mph (129 km/h) | 04h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $52.51 | $105.03 |
| Mid-grade | $4.60 | $58.19 | $116.37 |
| Premium | $4.90 | $61.98 | $123.97 |
| Diesel | $4.35 | $55.07 | $110.14 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.