Winnsboro Mills, SC to Summerville, SC is 126.8 miles and takes about 2h 23m via I 26, I 77, and William Earle Berne Beltway, with a fuel budget near $20 and enough daylight to finish in a day. This single-day trip stays within the Southeast region, traversing South Carolina for its entirety. Given its highway-focused profile, expect a straightforward journey primarily on interstates. This route is ideal if you're looking for an efficient way to get from point A to point B without significant detours or complex navigation. It’s a practical choice for a quick drive between these two South Carolina locales.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
63.4 miles from Winnsboro Mills, SC
A natural place for your longest stop of the day
, about 1h 13m into the drive
.
Main Roads
Road
Distance
Duration
I 26
82.6 mi
1h 28m
I 77
14.8 mi
16m
William Earle Berne Beltway
12.3 mi
14m
SC 34
6.1 mi
8m
Charles F Bolden Freeway
3.3 mi
4m
Veterans Memorial Freeway
2.8 mi
3m
North Main Street
2 mi
3m
Columbia Road
1.1 mi
1m
Longest stretch:
I 26
— 82.6 mi, about 1h 28m
Turn-by-Turn Driving Directions
Step-by-step road directions between Winnsboro Mills, SC and Summerville, SC.
1
Start on US 321 Business
1.0 mi·1 min·Columbia Road
2
Continue on US 321 Business
450 ft·12 sec·Columbia Road
3
Turn left onto US 321
0.3 mi·31 sec·US Highway 321 South Bypass
4
Turn left onto SC 34
6.1 mi·8 min·SC 34
5
Take the ramp
0.4 mi·50 sec
6
Merge onto I 77
15 mi·16 min·I 77
Use the straight / slight right lanes.
7
Keep slight left at fork onto I 77
3.3 mi·4 min·Charles F Bolden Freeway
Toward I 77: CharlestonUse the straight / slight right lanes.
8
Continue on I 77
12 mi·14 min·William Earle Berne Beltway
Use the straight / slight right lanes.
9
Continue on I 77
2.8 mi·3 min·Veterans Memorial Freeway
Use the straight / slight right lanes.
10
Keep slight left at fork
0.8 mi·1 min
Toward I 26 East: Charleston
11
Merge onto I 26
83 mi·1 hr 28 min·I 26
Use the right lane.
12
Take the exit
0.3 mi·35 sec
Exit 199AToward US 17 Alternate South: SummervilleUse the slight right lane.
13
Turn straight onto US 17 Alternate
2.0 mi·3 min·North Main Street
Use the straight / right lanes.
14
Turn left onto East Richardson Avenue
116 ft·5 sec·East Richardson Avenue
Use the left lane.
15
Turn right
92 ft·6 sec
16
Arrive at destination
Trip Plan
Since this trip covers 126.8 miles and takes under 2.5 hours, it’s easily a same-day excursion, allowing for flexibility in your departure time. With a fuel cost estimated around $20, keeping your tank topped off at the start is a good idea. The longest uninterrupted stretch is 82.6 miles on I 26, so plan for a single substantial stop for a break or to refuel if needed, perhaps before you begin that long segment. Given the focus on major highways, watch for typical interstate traffic patterns, especially as you approach Summerville.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 63.4 miles from Winnsboro Mills, SC, or about 1h 13m into the drive.
The longest continuous stretch on this route runs about 82.6 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 28 miles or 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 63.4 miles or 1h 13m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 57m
Traffic, exits, and arrival timing usually matter more near Summerville, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Winnsboro Mills, SC so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Winnsboro Mills, SC
This is one driving day of about 126.8 miles and 2h 23m.
Your first comfortable stop window is around 28 miles from Winnsboro Mills, SC.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 26 for about 82.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 10
5 decision points cluster between mile 7.9 and 124.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
7.9 mi into trip|~11m in|I 77
Merge onto I 77
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
22.7 mi into trip|~27m in|I 77 / Charles F Bolden Freeway
Keep slight left at fork onto I 77 / Charles F Bolden Freeway toward I 77: Charleston
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 77: Charleston
5
41 mi into trip|~48m in
Keep slight left at fork toward I 26 East: Charleston
Highway fork - watch signs carefully
Toward I 26 East: Charleston
5
41.8 mi into trip|~50m in|I 26
Merge onto I 26
Merge point - match speed before joining. Lane positioning matters here
Use the right lane.
7
124.5 mi into trip|~2h 19m in
Take the exit toward US 17 Alternate South: Summerville
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 199A
Toward US 17 Alternate South: Summerville
Fuel & Cost
Regular Gas
$19.83 one way
$39.66 round trip
$3.97/gal25.4 MPG avg44 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$21.68
$43.36
premium
$4.70
$23.47
$46.94
diesel
$5.61
$28.00
$55.99
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$20
Meals
$25–$50
Total
$45–$70
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 44.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
38
0
$13.31
$6.09
Efficient EV
31.7
0
$11.09
$5.07
EV Truck/SUV
50.7
0
$17.75
$8.12
Gas CO2
44 kg
EV CO2
15 kg (66% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
Winnsboro Mills, SC
Morning
in Winnsboro Mills on Sunday
Local time
6:33 AM
EDT
Current temp
73°F
Unavailable
Live forecast
Destination
Summerville, SC
Morning
in Summerville on Sunday
Local time
6:33 AM
EDT
Current temp
87°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
14 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 23m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Congaree National Park
National Park
Astonishing biodiversity exists in Congaree National Park, the largest intact expanse of old growth bottomland hardwood forest remaining in the southeastern United States. Waters from the Congaree and...
11 mi from route
~29 min detour
Free
near mile 56.8
Fort Sumter and Fort Moultrie National Historical Park
National Historical Park
Two forts stand at the entrance of Charleston Harbor. Patriots inside a palmetto log fort, later named Fort Moultrie, defeated the Royal Navy in 1776. As Charleston blazed a path towards secession to...
25 mi from route
~63 min detour
$10
near mile 126.8
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is predominantly a highway-focused experience, with 87% of the journey taking place on major interstates. You'll encounter stretches like the 82.6-mile segment on I 26, offering a consistent pace for many miles. The route incorporates I 77 and the William Earle Berne Beltway, meaning you'll experience the efficiency of interstate travel for the bulk of your trip. While it’s a highway-centric path, the transition between these major arteries is part of the drive's character. Expect a landscape that moves by quickly as you cover the distance.
87% highway — fuel and pacing are the main things to plan.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 82.6 mi on I 26.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 26 and I 77. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 7.9 miles in near I 77.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 10 significant decision points across 126.8 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 7.9 miles (I 77): Merge point - match speed before joining. Lane positioning matters here; at 22.7 miles (I 77 / Charles F Bolden Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 41 miles: Highway fork - watch signs carefully.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 23m. Total distance: 126.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 23m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (87%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 82.6 miles on I 26. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Summerville, SC before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 7.9 miles (I 77): Merge point - match speed before joining. Lane positioning matters here; at 22.7 miles (I 77 / Charles F Bolden Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 41 miles: Highway fork - watch signs carefully.
Yes — Congaree National Park and Fort Sumter and Fort Moultrie National Historical Park. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Summerville, SC before heading back.
