How far is Union, SC from Hilton Head, SC?
The driving distance from Union, SC to Hilton Head, SC is about 218.8 miles (352.2 km), with a travel time of about 04h 15m by car.
- The straight-line flight distance is about 179.8 miles (289.4 km).
- For a round trip, plan for roughly 08h 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 15m.
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.
Census-designated place in Santa Cruz County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly 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 North Pinckney Street
1.3 mi · 2 min · North Pinckney Street
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2
Continue on Whitmire Highway
15.2 mi · 17 min · Whitmire Highway
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3
Turn slight left onto Watson Street
7.4 mi · 11 min · Watson Street
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4
Keep slight right to continue on State Highway 121
6.1 mi · 9 min · State Highway 121
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5
Take the ramp slight right
1191 ft · 29 sec
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6
Merge slight left
36.2 mi · 40 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
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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 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.
Charleston
Keep slight right to continue on Charleston
60.2 mi · 01h 06m
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 Partly 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 218.8 miles (352.2 km) and usually takes 04h 15m 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?
Brookdale is a useful midpoint, sitting about 109.5 miles from Union and 109.4 miles from Hilton Head.
How much longer is the road route than the straight-line distance?
The direct path is about 179.8 miles (289.4 km), while the road route adds roughly 39 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 8:28 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $30.58 one way or $61.16 round trip. Estimated CO2 is about 68.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Union and Partly Sunny near Hilton Head.
Stop Ideas Near Brookdale
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 Brookdale.
Denmark
Columbia
Camden
Yemassee
Flight Path Map
This map shows the direct air route between Union and Hilton Head. Straight-line distance: 179.82 mi (289.39 km).
#1 Union
Township of Union County, New Jersey
| Population | 8,045 |
| Coordinates | 34.7154100, -81.6237100 |
| Altitude | 196 |
| 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: 352 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 17m |
| 40 mph (64.37 km/h) | 05h 28m |
| 50 mph (80.47 km/h) | 04h 22m |
| 60 mph (96.56 km/h) | 03h 38m |
| 70 mph (112.65 km/h) | 03h 07m |
| 80 mph (129 km/h) | 02h 43m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $30.58 | $61.16 |
| Mid-grade | $4.43 | $34.19 | $68.38 |
| Premium | $4.78 | $36.89 | $73.77 |
| Diesel | $5.62 | $43.42 | $86.83 |
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 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.