How far is Bay Saint Louis, MS from Horn Lake, MS?
The driving distance from Bay Saint Louis, MS to Horn Lake, MS is about 365.3 miles (587.9 km), with a travel time of about 05h 55m by car.
- The straight-line flight distance is about 323.7 miles (520.9 km).
- For a round trip, plan for roughly 11h 51m 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 55m.
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.
City in Madison County, Florida, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Bay Saint Louis and Horn Lake.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bay Saint Louis and Horn Lake.
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1
Start on South 2nd Street
1012 ft · 33 sec · South 2nd Street
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2
Turn left onto Main Street
1.1 mi · 2 min · Main Street
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3
Turn left
2 mi · 3 min
-
4
Turn slight right
113 m · 13 sec
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5
Continue straight
24.9 mi · 37 min
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6
Continue straight
15.6 mi · 23 min
-
7
Take the ramp slight right
1317 ft · 32 sec
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8
Merge slight left
40.4 mi · 43 min
-
9
Take the exit slight right toward US 49 North, MS 42 West: Jackson
1123 ft · 39 sec
-
10
Continue straight
1.2 mi · 2 min
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11
Continue straight
5.4 mi · 7 min
-
12
Continue straight
5.5 mi · 6 min
-
13
Continue straight
69.9 mi · 1 hr 25 min
-
14
Take the exit slight right
862 ft · 21 sec
-
15
Keep slight left to continue on Jackson
1.1 km · 1 min
-
16
Keep slight right
1.5 km · 1 min
-
17
Merge slight left
193.7 mi · 3 hr 30 min
-
18
Take the exit slight right toward Southaven, Horn Lake, Olive Branch
1582 ft · 39 sec
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19
Keep slight left to continue on Memphis
58 m · 7 sec
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20
Turn left onto Goodman Road West
2.1 mi · 4 min · Goodman Road West
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21
Turn left onto Hurt Road
2690 ft · 2 min · Hurt Road
-
22
Turn right onto Camelot Road
59 m · 9 sec · Camelot Road
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23
Arrive at your destination
0 m · 1 sec · Camelot Road
Car Route Details
A richer read on the saved driving route between Bay Saint Louis and Horn Lake.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Jackson
Merge slight left
194 mi · 03h 30m
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 Bay Saint Louis and Sunny near Horn Lake.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bay Saint Louis to Horn Lake?
The road trip is about 365.3 miles (587.9 km) and usually takes 05h 55m 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?
Madison is a useful midpoint, sitting about 182.9 miles from Bay Saint Louis and 182.4 miles from Horn Lake.
How much longer is the road route than the straight-line distance?
The direct path is about 323.7 miles (520.9 km), while the road route adds roughly 41.6 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 5:08 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $48.81 one way or $97.63 round trip. Estimated CO2 is about 114.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Bay Saint Louis and Sunny near Horn Lake.
Stop Ideas Near Madison
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 Madison.
Union Station
Yazoo City
Hazlehurst station
Vicksburg, MS
Flight Path Map
This map shows the direct air route between Bay Saint Louis and Horn Lake. Straight-line distance: 323.65 mi (520.87 km).
#1 Bay Saint Louis
City in Hancock County, Mississippi, United States of America
| Population | 14,529 |
| Coordinates | 30.3088100, -89.3300500 |
| Altitude | 7 |
| Country | United States |
#2 Horn Lake
City in De Soto County, Mississippi, United States
| Population | 27,282 |
| Coordinates | 34.9553700, -90.0348100 |
| Altitude | 91 |
| Country | United States |
End: Camelot Road (-90.034826, 34.955344)
Estimated Travel Time
Distance: 588 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 10m |
| 40 mph (64.37 km/h) | 09h 07m |
| 50 mph (80.47 km/h) | 07h 18m |
| 60 mph (96.56 km/h) | 06h 05m |
| 70 mph (112.65 km/h) | 05h 13m |
| 80 mph (129 km/h) | 04h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $48.81 | $97.63 |
| Mid-grade | $4.26 | $54.90 | $109.80 |
| Premium | $4.63 | $59.62 | $119.23 |
| Diesel | $5.42 | $69.80 | $139.60 |
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 Mississippi · Apr 20, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.