How far is Summit, MS from Biloxi, MS?
The driving distance from Summit, MS to Biloxi, MS is about 140.2 miles (225.6 km), with a travel time of about 02h 28m by car.
- The straight-line flight distance is about 112.2 miles (180.5 km).
- For a round trip, plan for roughly 04h 57m 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 02h 28m.
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.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Summit and Biloxi.
Turn-by-Turn Driving Directions
Step-by-step road directions between Summit and Biloxi.
-
1
Start on Robb Street
12 m · 4 sec · Robb Street
-
2
Turn right onto South Laurel Street
1.5 mi · 2 min · South Laurel Street
-
3
Turn right onto Marion Avenue
683 ft · 23 sec · Marion Avenue
-
4
Turn right onto Smithdale Road
2641 ft · 1 min · Smithdale Road
-
5
Turn left
1051 ft · 27 sec
-
6
Merge slight left
54.5 mi · 58 min
-
7
Take the exit slight right toward I 12 East: Slidell
1124 ft · 28 sec
-
8
Merge slight left onto West Florida Republic Parkway
47.5 mi · 51 min · West Florida Republic Parkway
-
9
Continue on West Florida Republic Parkway
1.1 km · 44 sec · West Florida Republic Parkway
-
10
Merge slight left onto Stephen E Ambrose Memorial Parkway
51.2 mi · 55 min · Stephen E Ambrose Memorial Parkway
-
11
Take the exit slight right toward I 110, MS 15, MS 67: Biloxi, Keesler Air Force Base
605 ft · 15 sec
-
12
Keep slight left
2126 ft · 52 sec
-
13
Keep slight right to continue on I 110: Biloxi, Keesler Air Force Base
2830 ft · 1 min
-
14
Merge slight left
2.7 mi · 4 min
-
15
Take the exit slight right toward Division Street
1852 ft · 47 sec
-
16
Turn left onto Division Street
3090 ft · 2 min · Division Street
-
17
Turn right onto Main Street
2572 ft · 1 min · Main Street
-
18
Turn left onto Howard Avenue
28 m · 3 sec · Howard Avenue
-
19
Arrive at your destination
0 m · 1 sec · Howard Avenue
Car Route Details
A richer read on the saved driving route between Summit and Biloxi.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Smithdale Road
Merge slight left
54.5 mi · 00h 58m
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.
Partly Sunny leaving Summit and Partly Sunny near Biloxi.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Summit to Biloxi?
The road trip is about 140.2 miles (225.6 km) and usually takes 02h 28m 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?
Picayune is a useful midpoint, sitting about 80.8 miles from Summit and 59.3 miles from Biloxi.
How much longer is the road route than the straight-line distance?
The direct path is about 112.2 miles (180.5 km), while the road route adds roughly 28 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 1:32 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.75 one way or $37.49 round trip. Estimated CO2 is about 44 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Summit and Partly Sunny near Biloxi.
Stop Ideas Near Picayune
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 Picayune.
Picayune
Slidell
Gulfport, MS
Hammond
Flight Path Map
This map shows the direct air route between Summit and Biloxi. Straight-line distance: 112.17 mi (180.52 km).
#1 Summit
Human settlement in Pike County, Mississippi, United States of America
| Population | 1,549 |
| Coordinates | 31.2837900, -90.4684300 |
| Altitude | 133 |
| 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: 226 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 40m |
| 40 mph (64.37 km/h) | 03h 30m |
| 50 mph (80.47 km/h) | 02h 48m |
| 60 mph (96.56 km/h) | 02h 20m |
| 70 mph (112.65 km/h) | 02h 00m |
| 80 mph (129 km/h) | 01h 44m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $18.75 | $37.49 |
| Mid-grade | $4.26 | $21.08 | $42.16 |
| Premium | $4.63 | $22.89 | $45.79 |
| Diesel | $5.42 | $26.80 | $53.61 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.