How far is Port Allen, LA from Baton Rouge, LA?
The driving distance from Port Allen, LA to Baton Rouge, LA is about 3 miles (4.9 km), with a travel time of about 00h 06m by car.
- The straight-line flight distance is about 1.5 miles (2.4 km).
- For a round trip, plan for roughly 00h 12m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 06m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Louisiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Port Allen and Baton Rouge.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Allen and Baton Rouge.
-
1
Start on South Alexander Avenue
93 m · 11 sec · South Alexander Avenue
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2
Turn right onto Avenue A
16 m · 2 sec · Avenue A
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3
Turn left onto Dr Martin Luther King Jr Memorial Highway
1998 ft · 46 sec · Dr Martin Luther King Jr Memorial Highway
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4
Continue on Highway 1 South
786 ft · 15 sec · Highway 1 South
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5
Take the exit slight right toward I 10 East: Baton Rouge
806 ft · 22 sec
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6
Keep slight right to continue on I 10 East: Baton Rouge
2900 ft · 1 min
-
7
Merge slight left onto Horace Wilkinson Bridge
1.5 km · 1 min · Horace Wilkinson Bridge
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8
Take the exit slight right toward LA 30
1984 ft · 48 sec
-
9
Keep slight right
122 m · 10 sec
-
10
Turn straight onto Oklahoma Street
151 m · 19 sec · Oklahoma Street
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11
Turn right onto Nicholson Drive
1685 ft · 34 sec · Nicholson Drive
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12
Continue on Saint Louis Street
1378 ft · 45 sec · Saint Louis Street
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13
Turn right onto Government Street
4 m · 1 sec · Government Street
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14
Arrive at your destination
0 m · 1 sec · Government Street
Car Route Details
A richer read on the saved driving route between Port Allen and Baton Rouge.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Horace Wilkinson Bridge
Merge slight left onto Horace Wilkinson Bridge
0.91 mi · 00h 01m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny then Slight Chance Showers And Thunderstorms leaving Port Allen and Mostly Sunny then Chance Showers And Thunderstorms near Baton Rouge.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Port Allen to Baton Rouge?
The road trip is about 3 miles (4.9 km) and usually takes 00h 06m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Brusly is a useful midpoint, sitting about 1.7 miles from Port Allen and 1.4 miles from Baton Rouge.
How much longer is the road route than the straight-line distance?
The direct path is about 1.5 miles (2.4 km), while the road route adds roughly 1.5 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 8:18 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $0.42 one way or $0.83 round trip. Estimated CO2 is about 1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Showers And Thunderstorms around Port Allen and Mostly Sunny then Chance Showers And Thunderstorms near Baton Rouge.
Stop Ideas Near Brusly
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Plaza
Baker Utility Office
Baker Municipal Center Auditorium
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Brusly.
Baton Rouge, Louisiana
New Iberia
Lafayette
Hammond
Flight Path Map
This map shows the direct air route between Port Allen and Baton Rouge. Straight-line distance: 1.48 mi (2.38 km).
#1 Port Allen
City in Louisiana, United States of America
| Population | 4,720 |
| Coordinates | 30.4521400, -91.2101100 |
| Altitude | 8 |
| Country | United States |
#2 Baton Rouge
The capital of Louisiana.
| Population | 219,052 |
| Coordinates | 30.4433200, -91.1874700 |
| Altitude | 14 |
| Country | United States |
End: Saint Louis Street (-91.18751, 30.443332)
Estimated Travel Time
Distance: 5 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 06m |
| 40 mph (64.37 km/h) | 00h 04m |
| 50 mph (80.47 km/h) | 00h 03m |
| 60 mph (96.56 km/h) | 00h 03m |
| 70 mph (112.65 km/h) | 00h 02m |
| 80 mph (129 km/h) | 00h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $0.42 | $0.83 |
| Mid-grade | $4.26 | $0.47 | $0.94 |
| Premium | $4.63 | $0.51 | $1.02 |
| Diesel | $5.42 | $0.60 | $1.19 |
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 Louisiana · Apr 10, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.