How far is Union, SC from Hilton Head, SC?
The driving distance from Union, SC to Hilton Head, SC is about 209.8 miles (337.7 km), with a travel time of about 04h 11m by car.
- The straight-line flight distance is about 172.9 miles (278.2 km).
- For a round trip, plan for roughly 08h 22m 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 11m.
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.
City in Orangeburg County, South Carolina, United States of America
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 Union and Hilton Head.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Hilton Head.
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1
Start on the route
69 m · 14 sec
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2
Turn sharp left
76 m · 8 sec
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3
Enter the roundabout and take exit 1 toward the route
4 m · 1 sec
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4
Exit the roundabout
57 m · 4 sec
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5
Continue on Rocky River Road
7.7 mi · 14 min · Rocky River Road
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6
Merge slight right onto Kershaw Camden Highway
1.4 mi · 2 min · Kershaw Camden Highway
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7
Continue on North Main Street
1.5 km · 1 min · North Main Street
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8
Turn left onto Spring Street
1.3 km · 55 sec · Spring Street
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9
Continue on Kershaw Camden Highway
4.8 mi · 5 min · Kershaw Camden Highway
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10
Turn slight right onto North Matson Street
1.5 mi · 2 min · North Matson Street
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11
Continue on South Hampton Street
1.1 km · 47 sec · South Hampton Street
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12
Continue on Kershaw Camden Highway
2.7 mi · 3 min · Kershaw Camden Highway
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13
Continue on Kershaw Highway
14.4 mi · 16 min · Kershaw Highway
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14
Continue on North Broad Street
4.2 mi · 9 min · North Broad Street
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15
Continue on Sumter Highway
8.4 mi · 10 min · Sumter Highway
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16
Continue on Camden Highway
6.2 mi · 7 min · Camden Highway
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17
Continue on Thomas Sumter Highway
7.6 mi · 9 min · Thomas Sumter Highway
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18
Continue on Camden Highway
1.9 mi · 2 min · Camden Highway
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19
Turn slight left onto Broad Street
1.2 km · 1 min · Broad Street
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20
Turn slight right onto Bultman Drive
1.2 km · 2 min · Bultman Drive
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21
Continue on North Guignard Drive
3.6 mi · 4 min · North Guignard Drive
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22
Continue on South Guignard Parkway
1.1 mi · 1 min · South Guignard Parkway
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23
Turn right onto Manning Road
12.1 mi · 14 min · Manning Road
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24
Take the exit slight right toward I 95 South: Savannah
1962 ft · 48 sec
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25
Merge slight left
93.1 mi · 1 hr 40 min
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26
Take the exit slight right toward SC 462: Coosawhatchie
1478 ft · 37 sec
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27
Turn left onto Coosaw Scenic Drive
9.6 mi · 13 min · Coosaw Scenic Drive
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28
Continue on Lowcountry Drive
7.9 mi · 11 min · Lowcountry Drive
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29
Turn right onto Okatie Highway
4.2 mi · 5 min · Okatie Highway
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30
Take the exit slight right
1365 ft · 37 sec
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31
Merge slight left onto Fording Island Road
9.3 mi · 13 min · Fording Island Road
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32
Continue on William Hilton Parkway
3.4 mi · 4 min · William Hilton Parkway
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33
Arrive at your destination
0 m · 1 sec · William Hilton Parkway
Car Route Details
A richer read on the saved driving route between Union 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.
I 95 South
Merge slight left
93.1 mi · 01h 40m
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 Union 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 Union to Hilton Head?
The road trip is about 209.8 miles (337.7 km) and usually takes 04h 11m 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?
Santee is a useful midpoint, sitting about 105 miles from Union and 104.8 miles from Hilton Head.
How much longer is the road route than the straight-line distance?
The direct path is about 172.9 miles (278.2 km), while the road route adds roughly 36.9 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 8:38 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.31 one way or $58.62 round trip. Estimated CO2 is about 65.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Union and Sunny near Hilton Head.
Stop Ideas Near Santee
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 Santee.
Denmark
Kingstree
Columbia
Charleston, South Carolina
Flight Path Map
This map shows the direct air route between Union and Hilton Head. Straight-line distance: 172.86 mi (278.19 km).
#1 Union
County seat of Union County, South Carolina
| Population | 7,535 |
| Coordinates | 34.7157100, -80.6211800 |
| Altitude | 195 |
| 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: 338 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 59m |
| 40 mph (64.37 km/h) | 05h 14m |
| 50 mph (80.47 km/h) | 04h 11m |
| 60 mph (96.56 km/h) | 03h 29m |
| 70 mph (112.65 km/h) | 02h 59m |
| 80 mph (129 km/h) | 02h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $29.31 | $58.62 |
| Mid-grade | $4.43 | $32.77 | $65.55 |
| Premium | $4.78 | $35.36 | $70.71 |
| Diesel | $5.62 | $41.62 | $83.24 |
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 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.