Origin
St. Petersburg, FL
Morning in St. Petersburg on Monday
Local time
10:28 AM
EDT
Current temp
66°F
Unavailable
Live forecast
Trip from St. Petersburg, FL to Stock Island, FL
Drive Time
8h 21m
Distance
402 mi
647 km
Drive Score
9/10
Great drive
Same Day?
2-day trip
Fuel Cost
$67
one way
EV Charging
Loading...
station data
Best Time to Leave
4 AM
8h 14m
★
6 AM
8h 22m
8 AM
8h 37m
10 AM
8h 27m
12 PM
8h 25m
3 PM
8h 28m
5 PM
8h 36m
8 PM
8h 17m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
St. Petersburg, FL
Arian Fernandez
Trip Overview
The drive from St. Petersburg, FL to Stock Island, FL covers 402 miles and takes about 8h 21m behind the wheel. It usually feels better as a 2-day road trip than as one long push.
The route leans on I 75, Overseas Highway, Homestead Extension of Florida's Turnpike for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 203.8 miles on I 75. At current regular gas prices, budget about $67.15 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
201 miles from St. Petersburg, FL
A natural place for your longest stop of the day , about 3h 39m into the drive .
Drive Character
This is a 8h 21m highway drive covering 402 miles, with most of the trip on I 75 and Overseas Highway. The longest continuous stretch is about 203.8 miles on I 75.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 24 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 75 is the longest continuous segment at about 203.8 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 75 and Overseas Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near CR 150 / Central Avenue.
Route Complexity
9/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 20 significant decision points across 402 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: near the start (CR 150 / Central Avenue): Navigation decision point; at 1.5 miles (I 275): Merge point - match speed before joining. Lane positioning matters here; at 6.7 miles (I 275; US 19 / Sunshine Skyway Bridge): Merge point - match speed before joining. Lane positioning matters here.
Critical Maneuvers
5 of 20 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0 mi into trip
|
~0m in
|
CR 150 / Central Avenue
Turn right onto CR 150 / Central Avenue
Navigation decision point
5
1.5 mi into trip
|
~3m in
|
I 275
Merge onto I 275
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
6.7 mi into trip
|
~9m in
|
I 275; US 19 / Sunshine Skyway Bridge
Merge onto I 275; US 19 / Sunshine Skyway Bridge
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
49.2 mi into trip
|
~57m in
|
I 75
Keep slight left at fork onto I 75
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
234.8 mi into trip
|
~4h 18m in
|
US 27
Keep slight right at fork onto US 27
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight lane.
Towns Along This Route
Between St. Petersburg, FL and Stock Island, FL, road signs point toward Bay, Florida's Turnpike South: Homestead and Key West.
Bay
224.9 mi in
|
~4h 5m
Florida's Turnpike South: Homestead
243.4 mi in
|
~4h 29m
Key West
243.4 mi in
|
~4h 29m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 75 | 203.8 mi | 3h 38m |
| Overseas Highway | 103.4 mi | 2h 40m |
| Homestead Extension of Florida's Turnpike | 34.5 mi | 40m |
| Dixie Highway | 19.2 mi | 26m |
| US 27 | 17.9 mi | 22m |
| Sunshine Skyway Bridge | 13.4 mi | 15m |
| I 275 | 6 mi | 8m |
| 31st Street South | 0.7 mi | 1m |
Longest stretch:
I 75
— 203.8 mi, about 3h 38m
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Petersburg, FL and Stock Island, FL.
1
Start on US 19
48 ft
·
5 sec
·
34th Street South
2
Turn right onto CR 150
0.2 mi
·
50 sec
·
Central Avenue
3
Turn right onto 31st Street South
0.7 mi
·
1 min
·
31st Street South
4
Take the ramp
0.5 mi
·
1 min
5
Merge onto I 275
4.9 mi
·
5 min
·
I 275
Use the straight / slight right lanes.
6
Keep slight left at fork
0.3 mi
·
17 sec
7
Merge onto I 275; US 19
13 mi
·
15 min
·
Sunshine Skyway Bridge
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 275
1.1 mi
·
2 min
·
I 275
Toward I 75 South: Naples
9
Merge onto I 75
28 mi
·
30 min
·
I 75
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 75
176 mi
·
3 hr 8 min
·
I 75
Use the straight / slight right lanes.
11
Take the exit
0.2 mi
·
21 sec
Toward US 27: Miami, South Bay
12
Keep slight right at fork
0.5 mi
·
58 sec
Toward US 27 South: Miami
13
Merge onto US 27
9.2 mi
·
11 min
·
US 27
Use the right lane.
14
Keep slight right at fork onto US 27
8.6 mi
·
11 min
·
US 27
Use the straight lane.
15
Take the exit
0.3 mi
·
32 sec
Toward Florida's Turnpike South: Homestead, Key West
16
Merge onto Homestead Extension of Florida's Turnpike
35 mi
·
40 min
·
Homestead Extension of Florida's Turnpike
Use the straight / slight right lanes.
17
Keep slight left at fork
0.6 mi
·
1 min
18
Merge onto US 1
19 mi
·
26 min
·
Dixie Highway
Use the left lane.
19
Continue on US 1
103 mi
·
2 hr 40 min
·
Overseas Highway
Use the straight lane.
20
Turn left onto 5th Street
0.3 mi
·
51 sec
·
5th Street
Use the left lane.
21
Turn left onto 5th Avenue
0.2 mi
·
29 sec
·
5th Avenue
22
Turn right
397 ft
·
30 sec
23
At end of road, turn right
146 ft
·
10 sec
24
Arrive at destination
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 201 miles from St. Petersburg, FL, or about 3h 39m into the drive.
The longest continuous stretch on this route runs about 203.8 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 88 miles or 1h 38m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 201 miles or 3h 39m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 201 miles or 3h 39m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 6h 47m
Traffic, exits, and arrival timing usually matter more near Stock Island, FL than in the middle of the route.
Before You Leave
+
Open the route before leaving St. Petersburg, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from St. Petersburg, FL
Aim for roughly 201 miles and 4.2 hours of wheel time on this day.
Day 2
Finish the approach into Stock Island, FL
Aim for roughly 201 miles and 4.2 hours of wheel time on this day.
Your first comfortable stop window is around 88 miles from St. Petersburg, FL.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 75 for about 203.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 201 mi from St. Petersburg, FL · 3h 39m into the drive
Mid-route town
Overnight candidate
201 mi into the route
Best for: Hotel check-in, dinner, and a fresh start
This lines up well with a realistic day-end stop if you are breaking the drive into stages.
Find hotels in Doral, FLOvernight Options
Night 1
201 mi · about 4.2h in
A practical overnight split lands near Doral, FL after about 201 miles or 4.2 hours of driving.
Find hotelsPacing Suggestions
Fuel and coffee
A short stop after about 88 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 201 miles from St. Petersburg, FL, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 75 if your tank is already low. That segment runs about 203.8 miles.
Overnight split
Hotel stopFor a steadier pace, wrap day one after about 201 miles or 4.2 hours on the road.
Arriving in Stock Island, FL
The final approach into Stock Island, FL usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Stock Island, FL.
On a multi-day trip, keep the last day a little lighter so you reach Stock Island, FL with some flexibility left in the schedule.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$67.15 one way
$134.31 round trip
$4.24/gal
25.4 MPG avg
141 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.60 | $72.74 | $145.48 |
| premium | $4.90 | $77.49 | $154.98 |
| diesel | $5.64 | $89.31 | $178.62 |
Estimated Tolls: $3.01
Homestead Extension
(34.5 mi)
$2.07
Sunshine Skyway Bridge
(13.4 mi)
$0.94
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$67
Tolls
$3
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$200–$310
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 140.7 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $42 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 120.6 | 1 | $42.21 | $19.30 |
| Efficient EV | 100.5 | 1 | $35.18 | $16.08 |
| EV Truck/SUV | 160.8 | 2 | $56.28 | $25.73 |
Gas CO2
141 kg
EV CO2
47 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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.
Destination
Stock Island, FL
Morning in Stock Island on Monday
Local time
10:28 AM
EDT
Current temp
74°F
Unavailable
Live forecast
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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
8 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
8h 21m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from St. Petersburg, FL to Stock Island, FL covers 402 miles and takes about 8h 21m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 75, Overseas Highway, Homestead Extension of Florida's Turnpike. Most of the drive stays on highways, so watch for ramps and exits.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 201 miles on day one.
The midpoint is about 201 miles from St. Petersburg, FL. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $67.15 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 20 significant decision points across 402 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: near the start (CR 150 / Central Avenue): Navigation decision point; at 1.5 miles (I 275): Merge point - match speed before joining. Lane positioning matters here; at 6.7 miles (I 275; US 19 / Sunshine Skyway Bridge): Merge point - match speed before joining. Lane positioning matters here.
Between St. Petersburg, FL and Stock Island, FL, road signs point toward Bay, Florida's Turnpike South: Homestead and Key West.
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Return Trip
Stock Island, FL to St. Petersburg, FLPlan the drive back the other way.
402.5 mi
8h 22m
Continue From Stock Island, FL
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