How far is Duncan, SC from Hilton Head, SC?
The driving distance from Duncan, SC to Hilton Head, SC is about 244.9 miles (394.1 km), with a travel time of about 04h 45m by car.
- The straight-line flight distance is about 204.4 miles (329 km).
- For a round trip, plan for roughly 09h 31m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
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 04h 45m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Town in Calhoun County, South Carolina
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Duncan and Hilton Head.
Turn-by-Turn Driving Directions
Step-by-step road directions between Duncan and Hilton Head.
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1
Start on South Spencer Street
39 m · 7 sec · South Spencer Street
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2
Turn right onto West Main Street
5.8 mi · 12 min · West Main Street
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3
Continue on Moore Duncan Highway
6.2 mi · 10 min · Moore Duncan Highway
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4
Turn left onto Highway 221
1.3 km · 1 min · Highway 221
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5
Take the ramp right
797 ft · 19 sec
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6
Merge slight left
79.4 mi · 1 hr 27 min
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7
Keep slight right to continue on Charleston
60.2 mi · 1 hr 6 min
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8
Take the exit slight right toward I 95 South: Savannah
1.4 km · 2 min
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9
Merge slight left
56.6 mi · 1 hr 1 min
-
10
Take the exit slight right toward SC 462: Coosawhatchie
1478 ft · 37 sec
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11
Turn left onto Coosaw Scenic Drive
9.6 mi · 13 min · Coosaw Scenic Drive
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12
Continue on Lowcountry Drive
7.9 mi · 11 min · Lowcountry Drive
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13
Turn right onto Okatie Highway
4.2 mi · 5 min · Okatie Highway
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14
Take the exit slight right
1365 ft · 37 sec
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15
Merge slight left onto Fording Island Road
9.3 mi · 13 min · Fording Island Road
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16
Continue on William Hilton Parkway
3.4 mi · 4 min · William Hilton Parkway
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17
Arrive at your destination
0 m · 1 sec · William Hilton Parkway
Car Route Details
A richer read on the saved driving route between Duncan and Hilton Head.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Highway 221
Merge slight left
79.4 mi · 01h 27m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Duncan and Sunny near Hilton Head.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Duncan to Hilton Head?
The road trip is about 244.9 miles (394.1 km) and usually takes 04h 45m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Saint Matthews is a useful midpoint, sitting about 122.5 miles from Duncan and 122.3 miles from Hilton Head.
How much longer is the road route than the straight-line distance?
The direct path is about 204.4 miles (329 km), while the road route adds roughly 40.5 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 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 7:28 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $34.22 one way or $68.45 round trip. Estimated CO2 is about 76.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Duncan and Sunny near Hilton Head.
Stop Ideas Near Saint Matthews
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 Saint Matthews.
Columbia
Denmark
Camden
Kingstree
Flight Path Map
This map shows the direct air route between Duncan and Hilton Head. Straight-line distance: 204.41 mi (328.96 km).
#1 Duncan
Human settlement in Spartanburg County, South Carolina, United States of America
| Population | 3,715 |
| Coordinates | 34.9379000, -82.1451100 |
| Altitude | 264 |
| Country | United States |
#2 Hilton Head
Resort town in South Carolina, USA
| Population | 37,099 |
| Coordinates | 32.2163200, -80.7526100 |
| Altitude | 3 |
| Country | United States |
End: Hilton Head (-80.75261, 32.21632)
Estimated Travel Time
Distance: 394 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 09m |
| 40 mph (64.37 km/h) | 06h 07m |
| 50 mph (80.47 km/h) | 04h 53m |
| 60 mph (96.56 km/h) | 04h 04m |
| 70 mph (112.65 km/h) | 03h 29m |
| 80 mph (129 km/h) | 03h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $34.22 | $68.45 |
| Mid-grade | $4.43 | $38.27 | $76.53 |
| Premium | $4.78 | $41.28 | $82.56 |
| Diesel | $5.62 | $48.59 | $97.18 |
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 South Carolina · 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.