How far is Hattiesburg, MS from Bay Saint Louis, MS?
The driving distance from Hattiesburg, MS to Bay Saint Louis, MS is about 83.5 miles (134.3 km), with a travel time of about 01h 54m by car.
- The straight-line flight distance is about 70.4 miles (113.3 km).
- For a round trip, plan for roughly 03h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 54m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Pearl River County, Mississippi, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Fog
Mostly Clear
Driving Route Map
The map below follows the saved road route between Hattiesburg and Bay Saint Louis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hattiesburg and Bay Saint Louis.
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1
Start on East Pine Street
1.5 km · 3 min · East Pine Street
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2
Continue on Broadway Drive
4.8 mi · 9 min · Broadway Drive
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3
Take the ramp slight left
802 ft · 21 sec
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4
Merge slight left onto Lance Corporal Roy M Wheat Memorial Highway
33.2 mi · 36 min · Lance Corporal Roy M Wheat Memorial Highway
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5
Take the exit slight right toward MS 53: Poplarville, Necaise
985 ft · 27 sec
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6
Turn left onto South Main Street
15.7 mi · 23 min · South Main Street
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7
Continue straight
25 mi · 37 min
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8
Turn left
2.1 mi · 3 min
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9
Turn right onto Main Street
1.1 mi · 2 min · Main Street
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10
Turn right onto South 2nd Street
1012 ft · 28 sec · South 2nd Street
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11
Arrive at your destination
0 m · 1 sec · South 2nd Street
Car Route Details
A richer read on the saved driving route between Hattiesburg and Bay Saint Louis.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Lance Corporal Roy M Wheat Memorial Highway
Merge slight left onto Lance Corporal Roy M Wheat Memorial Highway
33.2 mi · 00h 36m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Patchy Fog leaving Hattiesburg and Mostly Clear near Bay Saint Louis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hattiesburg to Bay Saint Louis?
The road trip is about 83.5 miles (134.3 km) and usually takes 01h 54m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Poplarville is a useful midpoint, sitting about 41.8 miles from Hattiesburg and 41.6 miles from Bay Saint Louis.
How much longer is the road route than the straight-line distance?
The direct path is about 70.4 miles (113.3 km), while the road route adds roughly 13.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.13 one way or $22.27 round trip. Estimated CO2 is about 26.1 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Fog around Hattiesburg and Mostly Clear near Bay Saint Louis.
Stop Ideas Near Poplarville
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 Poplarville.
Picayune
Hattiesburg station
Gulfport, MS
Hattiesburg, MS
Flight Path Map
This map shows the direct air route between Hattiesburg and Bay Saint Louis. Straight-line distance: 70.4 mi (113.29 km).
#1 Hattiesburg
The most populous city in Forrest County, Mississippi.
| Population | 45,806 |
| Coordinates | 31.3271200, -89.2903400 |
| Altitude | 52 |
| Country | United States |
#2 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 |
End: Bay Saint Louis (-89.33005, 30.30881)
Estimated Travel Time
Distance: 134 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 46m |
| 40 mph (64.37 km/h) | 02h 05m |
| 50 mph (80.47 km/h) | 01h 40m |
| 60 mph (96.56 km/h) | 01h 23m |
| 70 mph (112.65 km/h) | 01h 11m |
| 80 mph (129 km/h) | 01h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $11.13 | $22.27 |
| Mid-grade | $4.26 | $12.52 | $25.04 |
| Premium | $4.63 | $13.60 | $27.20 |
| Diesel | $5.42 | $15.92 | $31.84 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.