How far is Saint Martin, MS from Horn Lake, MS?
The driving distance from Saint Martin, MS to Horn Lake, MS is about 356.9 miles (574.4 km), with a travel time of about 06h 56m by car.
- The straight-line flight distance is about 319.4 miles (514 km).
- For a round trip, plan for roughly 13h 52m 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 06h 56m.
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.
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Saint Martin and Horn Lake.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Martin and Horn Lake.
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1
Start on Needle Street
154 m · 28 sec · Needle Street
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2
Turn left onto Sundown Avenue
1669 ft · 1 min · Sundown Avenue
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3
At the end of the road, turn left onto Lemoyne Boulevard
1.4 mi · 3 min · Lemoyne Boulevard
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4
Turn left onto Gorenflo Road
2858 ft · 58 sec · Gorenflo Road
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5
Turn right onto Rodriguez Street
1208 ft · 35 sec · Rodriguez Street
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6
Take the ramp slight right
1472 ft · 37 sec
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7
Merge slight left
1.3 mi · 2 min
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8
Continue straight
20.7 mi · 24 min
-
9
Keep slight right to continue on US 49 North: Hattiesburg, Jackson
2209 ft · 47 sec
-
10
Merge slight left
39.8 mi · 47 min
-
11
Continue straight
2.4 mi · 3 min
-
12
Turn straight
10.3 mi · 16 min
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13
Continue straight
5.4 mi · 7 min
-
14
Continue straight
5.3 mi · 6 min
-
15
Continue straight
1077 ft · 14 sec
-
16
Continue straight
4.2 mi · 5 min
-
17
Continue straight
65.7 mi · 1 hr 20 min
-
18
Take the exit slight right
862 ft · 21 sec
-
19
Keep slight left to continue on Jackson
1.1 km · 1 min
-
20
Keep slight right
1.5 km · 1 min
-
21
Merge slight left
193.7 mi · 3 hr 30 min
-
22
Take the exit slight right toward Southaven, Horn Lake, Olive Branch
1582 ft · 39 sec
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23
Keep slight left to continue on Memphis
58 m · 7 sec
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24
Turn left onto Goodman Road West
2.1 mi · 4 min · Goodman Road West
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25
Turn left onto Hurt Road
2690 ft · 2 min · Hurt Road
-
26
Turn right onto Camelot Road
59 m · 9 sec · Camelot Road
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27
Arrive at your destination
0 m · 1 sec · Camelot Road
Car Route Details
A richer read on the saved driving route between Saint Martin 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.
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.
Sunny leaving Saint Martin and Partly Cloudy near Horn Lake.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Martin to Horn Lake?
The road trip is about 356.9 miles (574.4 km) and usually takes 06h 56m 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 178.8 miles from Saint Martin and 178.1 miles from Horn Lake.
How much longer is the road route than the straight-line distance?
The direct path is about 319.4 miles (514 km), while the road route adds roughly 37.5 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 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 $47.72 one way or $95.43 round trip. Estimated CO2 is about 112 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Saint Martin and Partly Cloudy 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 Saint Martin and Horn Lake. Straight-line distance: 319.4 mi (514.02 km).
#1 Saint Martin
Census-designated place in Jackson County, Mississippi
| Population | 7,730 |
| Coordinates | 30.4379800, -88.8680900 |
| Altitude | 3 |
| 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: Horn Lake (-90.03481, 34.95537)
Estimated Travel Time
Distance: 574 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 53m |
| 40 mph (64.37 km/h) | 08h 55m |
| 50 mph (80.47 km/h) | 07h 08m |
| 60 mph (96.56 km/h) | 05h 56m |
| 70 mph (112.65 km/h) | 05h 05m |
| 80 mph (129 km/h) | 04h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $47.72 | $95.43 |
| Mid-grade | $4.26 | $53.66 | $107.33 |
| Premium | $4.63 | $58.28 | $116.55 |
| Diesel | $5.42 | $68.23 | $136.46 |
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 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.