How far is Portage, IN from Southport, IN?
The driving distance from Portage, IN to Southport, IN is about 166 miles (267.1 km), with a travel time of about 03h 10m by car.
- The straight-line flight distance is about 143 miles (230.2 km).
- For a round trip, plan for roughly 06h 21m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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 03h 10m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Township in White County, Indiana
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Portage and Southport.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portage and Southport.
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1
Start on Central Avenue
1861 ft · 53 sec · Central Avenue
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2
Turn right onto Willowcreek Road
2930 ft · 1 min · Willowcreek Road
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3
Take the ramp slight right toward I 80, I 90
132 m · 12 sec
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4
Keep slight right
673 ft · 16 sec
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5
Continue straight
1945 ft · 47 sec
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6
Merge slight left onto Indiana Toll Road
2.6 mi · 3 min · Indiana Toll Road
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7
Take the exit slight right toward I 80 West, I 94, US 6: Des Moines
3216 ft · 1 min
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8
Keep slight right to continue on I 94 West, I 80 West, SR 51, US 6 East
543 ft · 13 sec
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9
Keep slight left to continue on I 94 West, I 80 West
2.9 mi · 4 min
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10
Take the exit slight right toward I 65: Gary, Toll Road, Indianapolis
1 km · 52 sec
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11
Keep slight left to continue on I 65 South, I 80 West, I 94 West, US 6 West: Indianapolis, Chicago
618 ft · 10 sec
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12
Keep slight left to continue on I 65 South: Indianapolis
2686 ft · 60 sec
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13
Merge slight left onto Casimir Pulaski Memorial Highway
130 mi · 2 hr 21 min · Casimir Pulaski Memorial Highway
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14
Keep slight left
5.9 mi · 7 min
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15
Take the exit slight right toward I 465 South
1210 ft · 30 sec
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16
Continue on I 465 South
1 km · 1 min
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17
Merge slight left
17 mi · 20 min
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18
Take the exit slight right toward US 31 South: East Street
1612 ft · 41 sec
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19
Turn right onto South East Street
1060 ft · 18 sec · South East Street
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20
Turn slight left
751 ft · 33 sec
-
21
Turn left onto East Thompson Road
1 km · 1 min · East Thompson Road
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22
Turn right onto Madison Avenue
2 mi · 4 min · Madison Avenue
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23
Turn right
30 m · 7 sec
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24
Turn right
25 m · 6 sec
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25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Portage and Southport.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Casimir Pulaski Memorial Highway
Merge slight left onto Casimir Pulaski Memorial Highway
130 mi · 02h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Portage and Chance Rain Showers then Chance Showers And Thunderstorms near Southport.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portage to Southport?
The road trip is about 166 miles (267.1 km) and usually takes 03h 10m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Round Grove is a useful midpoint, sitting about 83 miles from Portage and 83 miles from Southport.
How much longer is the road route than the straight-line distance?
The direct path is about 143 miles (230.2 km), while the road route adds roughly 23 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 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:38 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.10 one way or $44.20 round trip. Estimated CO2 is about 52.1 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Portage and Southport, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Portage and Chance Rain Showers then Chance Showers And Thunderstorms near Southport.
Stop Ideas Near Round Grove
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 Round Grove.
Lafayette station
Rensselaer
Crawfordsville (Bus), Indiana
Crawfordsville
Flight Path Map
This map shows the direct air route between Portage and Southport. Straight-line distance: 143.01 mi (230.16 km).
#1 Portage
The second most populous city in Porter County, Indiana.
| Population | 90,543 |
| Coordinates | 41.5758700, -87.1761500 |
| Altitude | 194 |
| Country | United States |
#2 Southport
Town in Marion County, Indiana, United States
| Population | 1,760 |
| Coordinates | 39.6650500, -86.1277600 |
| Altitude | 228 |
| Country | United States |
End: Southport (-86.12776, 39.66505)
Estimated Travel Time
Distance: 267 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 31m |
| 40 mph (64.37 km/h) | 04h 08m |
| 50 mph (80.47 km/h) | 03h 19m |
| 60 mph (96.56 km/h) | 02h 45m |
| 70 mph (112.65 km/h) | 02h 22m |
| 80 mph (129 km/h) | 02h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $22.10 | $44.20 |
| Mid-grade | $4.25 | $24.92 | $49.85 |
| Premium | $4.65 | $27.27 | $54.54 |
| Diesel | $5.30 | $31.08 | $62.16 |
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 Indiana · May 26, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.