How far is Union, MS from Biloxi, MS?
The driving distance from Union, MS to Biloxi, MS is about 114.1 miles (183.6 km), with a travel time of about 01h 56m by car.
- The straight-line flight distance is about 99.4 miles (159.9 km).
- For a round trip, plan for roughly 03h 52m 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 56m.
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.
Small city in Mississippi, U.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Slight Chance Rain Showers then Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Union and Biloxi.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Biloxi.
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1
Start on Jones Chapel Road
25 m · 4 sec · Jones Chapel Road
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2
Turn right
2.7 mi · 5 min
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3
Turn right
4 mi · 6 min
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4
Turn right
5.7 mi · 7 min
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5
Turn left onto Main Street
1.2 mi · 2 min · Main Street
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6
Take the ramp slight left toward US 49 South: Hattiesburg
1327 ft · 38 sec
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7
Merge slight left
21.6 mi · 26 min
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8
Continue straight
2294 ft · 36 sec
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9
Continue straight
1.1 mi · 2 min
-
10
Take the exit slight right toward I 59 South: New Orleans, Gulf Coast
1914 ft · 36 sec
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11
Merge slight left onto Lance Corporal Roy M Wheat Memorial Highway
7.7 mi · 8 min · Lance Corporal Roy M Wheat Memorial Highway
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12
Take the exit slight right toward US 98 East: Lucedale, Mobile
3.2 mi · 4 min
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13
Take the exit slight right toward US 49: Wiggins, Gulfport, Mississippi Gulf Coast
1558 ft · 44 sec
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14
Keep slight left to continue on Multi Purpose Center, Hattiesburg
833 ft · 28 sec
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15
Turn right
41.9 mi · 49 min
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16
Take the exit slight right toward MS 67 South: D'Iberville, Biloxi
1.2 km · 1 min
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17
Continue on Biloxi-D'Iberville Scenic Expressway
20.5 mi · 24 min · Biloxi-D'Iberville Scenic Expressway
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18
Continue straight
3.2 mi · 4 min
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19
Take the exit slight right toward Division Street
1852 ft · 47 sec
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20
Turn left onto Division Street
3090 ft · 2 min · Division Street
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21
Turn right onto Main Street
2572 ft · 1 min · Main Street
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22
Turn left onto Howard Avenue
28 m · 3 sec · Howard Avenue
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23
Arrive at your destination
0 m · 1 sec · Howard Avenue
Car Route Details
A richer read on the saved driving route between Union and Biloxi.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Longest stretch
Turn right
41.9 mi · 00h 49m
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.
Slight Chance Rain Showers leaving Union and Slight Chance Rain Showers then Mostly Cloudy near Biloxi.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Biloxi?
The road trip is about 114.1 miles (183.6 km) and usually takes 01h 56m 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?
Purvis is a useful midpoint, sitting about 58.3 miles from Union and 55.7 miles from Biloxi.
How much longer is the road route than the straight-line distance?
The direct path is about 99.4 miles (159.9 km), while the road route adds roughly 14.7 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 2:38 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.26 one way or $30.52 round trip. Estimated CO2 is about 35.8 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Union and Slight Chance Rain Showers then Mostly Cloudy near Biloxi.
Stop Ideas Near Purvis
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 Purvis.
Hattiesburg station
Hattiesburg, MS
Laurel station
Picayune
Flight Path Map
This map shows the direct air route between Union and Biloxi. Straight-line distance: 99.37 mi (159.92 km).
#1 Union
County in Mississippi, United States
| Population | 1,876 |
| Coordinates | 31.7376600, -89.4903400 |
| Altitude | 122 |
| Country | United States |
#2 Biloxi
The most populous city in Harrison County, Mississippi.
| Population | 46,127 |
| Coordinates | 30.3960300, -88.8853100 |
| Altitude | 6 |
| Country | United States |
End: Howard Avenue (-88.885301, 30.396075)
Estimated Travel Time
Distance: 184 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 48m |
| 40 mph (64.37 km/h) | 02h 51m |
| 50 mph (80.47 km/h) | 02h 16m |
| 60 mph (96.56 km/h) | 01h 54m |
| 70 mph (112.65 km/h) | 01h 37m |
| 80 mph (129 km/h) | 01h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $15.26 | $30.52 |
| Mid-grade | $4.26 | $17.16 | $34.33 |
| Premium | $4.63 | $18.64 | $37.28 |
| Diesel | $5.42 | $21.82 | $43.64 |
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 · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.