How far is Horn Lake, MS from Diamondhead, MS?
The driving distance from Horn Lake, MS to Diamondhead, MS is about 361.3 miles (581.5 km), with a travel time of about 07h 05m by car.
- The straight-line flight distance is about 317.5 miles (511 km).
- For a round trip, plan for roughly 14h 11m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 07h 05m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Chance Rain Showers then Chance Showers And Thunderstorms
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Horn Lake and Diamondhead.
Turn-by-Turn Driving Directions
Step-by-step road directions between Horn Lake and Diamondhead.
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1
Start on Camelot Road
59 m · 14 sec · Camelot Road
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2
Turn left onto Hurt Road
2690 ft · 2 min · Hurt Road
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3
Turn right onto Goodman Road West
1.8 mi · 3 min · Goodman Road West
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4
Take the ramp slight right toward Jackson
2237 ft · 54 sec
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5
Merge slight left
193.5 mi · 3 hr 29 min
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6
Take the exit slight right toward I 20 East, US 49 South: Meridian, Hattiesburg
1.5 km · 1 min
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7
Keep slight right to continue on Richland, Hattiesburg
1.2 km · 2 min
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8
Merge slight left onto Highway 49 South
80.3 mi · 1 hr 37 min · Highway 49 South
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9
Continue straight
2294 ft · 36 sec
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10
Continue straight
1.1 mi · 2 min
-
11
Take the exit slight right toward I 59 South: New Orleans, Gulf Coast
1914 ft · 36 sec
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12
Merge slight left onto Lance Corporal Roy M Wheat Memorial Highway
40.1 mi · 43 min · Lance Corporal Roy M Wheat Memorial Highway
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13
Take the exit slight right toward MS 53: Poplarville, Necaise
985 ft · 27 sec
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14
Turn left onto South Main Street
15.7 mi · 23 min · South Main Street
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15
Continue straight
19.6 mi · 29 min
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16
Turn left
1663 ft · 42 sec
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17
Merge slight left
2.4 mi · 3 min
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18
Take the exit slight right toward Diamondhead
1350 ft · 33 sec
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19
Keep slight left
69 m · 6 sec
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20
Keep slight left to continue on Yacht Club Drive
580 ft · 16 sec · Yacht Club Drive
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21
Continue on Gex Drive
684 ft · 19 sec · Gex Drive
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22
Enter the roundabout and take exit 1 toward Gex Drive
44 m · 4 sec · Gex Drive
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23
Exit the roundabout onto Gex Drive
137 m · 13 sec · Gex Drive
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24
Enter the roundabout and take exit 2 toward Gex Drive
32 m · 3 sec · Gex Drive
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25
Exit the roundabout onto Gex Drive
2082 ft · 57 sec · Gex Drive
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26
Enter the roundabout and take exit 2 toward Diamondhead Circle
138 m · 12 sec · Diamondhead Drive North
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27
Exit the rotary onto Diamondhead Drive North
1743 ft · 50 sec · Diamondhead Drive North
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28
Turn right onto Analii Street
1856 ft · 1 min · Analii Street
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29
Turn right onto Diamondhead Drive North
1.1 km · 2 min · Diamondhead Drive North
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30
Turn right
1214 ft · 55 sec
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31
At the end of the road, turn right
116 m · 18 sec
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32
Turn right
42 m · 6 sec
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33
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Horn Lake and Diamondhead.
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 29m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Chance Rain Showers then Chance Showers And Thunderstorms leaving Horn Lake and Partly Sunny then Slight Chance Showers And Thunderstorms near Diamondhead.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Horn Lake to Diamondhead?
The road trip is about 361.3 miles (581.5 km) and usually takes 07h 05m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Madison is a useful midpoint, sitting about 181 miles from Horn Lake and 180.3 miles from Diamondhead.
How much longer is the road route than the straight-line distance?
The direct path is about 317.5 miles (511 km), while the road route adds roughly 43.8 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $48.28 one way or $96.57 round trip. Estimated CO2 is about 113.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Chance Showers And Thunderstorms around Horn Lake and Partly Sunny then Slight Chance Showers And Thunderstorms near Diamondhead.
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 Horn Lake and Diamondhead. Straight-line distance: 317.52 mi (511 km).
#1 Horn Lake
City in De Soto County, Mississippi, United States
| Population | 27,282 |
| Coordinates | 34.9553700, -90.0348100 |
| Altitude | 91 |
| Country | United States |
#2 Diamondhead
City in Hancock County, Mississippi, United States of America
| Population | 8,058 |
| Coordinates | 30.3946400, -89.3639400 |
| Altitude | 20 |
| Country | United States |
End: Diamondhead (-89.36394, 30.39464)
Estimated Travel Time
Distance: 582 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 02m |
| 40 mph (64.37 km/h) | 09h 02m |
| 50 mph (80.47 km/h) | 07h 13m |
| 60 mph (96.56 km/h) | 06h 01m |
| 70 mph (112.65 km/h) | 05h 09m |
| 80 mph (129 km/h) | 04h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $48.28 | $96.57 |
| Mid-grade | $4.26 | $54.30 | $108.60 |
| Premium | $4.63 | $58.97 | $117.94 |
| Diesel | $5.42 | $69.04 | $138.08 |
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 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.