How far is Port Sulphur, LA from Bossier City, LA?
The driving distance from Port Sulphur, LA to Bossier City, LA is about 374.3 miles (602.3 km), with a travel time of about 05h 57m by car.
- The straight-line flight distance is about 318 miles (511.8 km).
- For a round trip, plan for roughly 11h 54m 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 05h 57m.
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.
Town in St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Port Sulphur and Bossier City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Sulphur and Bossier City.
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1
Start on the route
39.8 mi · 52 min
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2
Turn right onto Behrman Highway
2.3 mi · 4 min · Behrman Highway
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3
Turn straight onto Behrman Place
1908 ft · 36 sec · Behrman Place
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4
Keep slight left to continue on Behrman Place
1567 ft · 45 sec · Behrman Place
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5
At the end of the road, turn left onto General de Gaulle Drive
1.2 mi · 2 min · General de Gaulle Drive
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6
Take the ramp straight toward US 90 Business East: New Orleans
2126 ft · 42 sec
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7
Merge slight left onto Westbank Expressway
1.5 km · 1 min · Westbank Expressway
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8
Continue on Crescent City Connection
1 km · 58 sec · Crescent City Connection
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9
Continue on Pontchartrain Expressway
80.6 mi · 1 hr 32 min · Pontchartrain Expressway
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10
Keep slight left
3.9 mi · 5 min
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11
Take the exit slight right toward LA 415: Lobdell
1842 ft · 45 sec
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12
Keep slight right to continue on LA 415: Lobdell
97 m · 8 sec
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13
Merge slight left onto North Lobdell Highway
3.6 mi · 5 min · North Lobdell Highway
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14
Merge slight left onto State Route 1
49 mi · 1 hr 3 min · State Route 1
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15
Take the exit slight right toward I 49 North, US 167 North: Alexandria
1494 ft · 36 sec
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16
Merge slight left onto Charles I. "Doc" Hudson Highway
186.3 mi · 3 hr 10 min · Charles I. "Doc" Hudson Highway
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17
Keep slight right to continue on I 20: Dallas, Monroe
1169 ft · 29 sec
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18
Keep slight right to continue on I 20 East: Monroe
3011 ft · 1 min
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19
Merge slight left onto Purple Heart Recipients Highway
1.5 mi · 2 min · Purple Heart Recipients Highway
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20
Take the exit slight right toward Traffic Street
2557 ft · 1 min
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21
Continue on Barksdale Boulevard
897 ft · 36 sec · Barksdale Boulevard
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22
Turn left onto Monroe Street
24 m · 3 sec · Monroe Street
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23
Arrive at your destination
0 m · 1 sec · Monroe Street
Car Route Details
A richer read on the saved driving route between Port Sulphur and Bossier City.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Charles I. "Doc" Hudson Highway
Merge slight left onto Charles I. "Doc" Hudson Highway
186 mi · 03h 10m
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 Clear leaving Port Sulphur and Partly Cloudy near Bossier City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Port Sulphur to Bossier City?
The road trip is about 374.3 miles (602.3 km) and usually takes 05h 57m 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?
Washington is a useful midpoint, sitting about 186.5 miles from Port Sulphur and 187.7 miles from Bossier City.
How much longer is the road route than the straight-line distance?
The direct path is about 318 miles (511.8 km), while the road route adds roughly 56.3 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 5:06 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $50.03 one way or $100.05 round trip. Estimated CO2 is about 117.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around Port Sulphur and Partly Cloudy near Bossier City.
Stop Ideas Near Washington
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Port Barre Park
Washington Town Hall
Port Barre Community Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Washington.
Lafayette
New Iberia
Baton Rouge, Louisiana
Lake Charles
Flight Path Map
This map shows the direct air route between Port Sulphur and Bossier City. Straight-line distance: 318.04 mi (511.84 km).
#1 Port Sulphur
City in Louisiana, United States of America
| Population | 1,760 |
| Coordinates | 29.4804900, -89.6939500 |
| Altitude | 1 |
| Country | United States |
#2 Bossier City
The most populous city in Bossier Parish, Louisiana.
| Population | 68,159 |
| Coordinates | 32.5159900, -93.7321200 |
| Altitude | 53 |
| Country | United States |
End: Monroe Street (-93.732225, 32.51599)
Estimated Travel Time
Distance: 602 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 28m |
| 40 mph (64.37 km/h) | 09h 21m |
| 50 mph (80.47 km/h) | 07h 29m |
| 60 mph (96.56 km/h) | 06h 14m |
| 70 mph (112.65 km/h) | 05h 20m |
| 80 mph (129 km/h) | 04h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $50.03 | $100.05 |
| Mid-grade | $4.26 | $56.26 | $112.52 |
| Premium | $4.63 | $61.10 | $122.19 |
| Diesel | $5.42 | $71.53 | $143.06 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.