How far is Rock Hill, SC from Union, SC?
The driving distance from Rock Hill, SC to Union, SC is about 68.8 miles (110.7 km), with a travel time of about 01h 47m by car.
- The straight-line flight distance is about 48.3 miles (77.7 km).
- For a round trip, plan for roughly 03h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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 01h 47m.
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.
Town in Chester County, South Carolina, United States and is located fourteen miles southwest of Lancaster, South Carolina
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Rock Hill and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rock Hill and Union.
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1
Start on State Highway 215S
2.4 mi · 4 min · State Highway 215S
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2
Continue on Monticous Road
2026 ft · 40 sec · Monticous Road
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3
Continue on South State Highway 215
1.3 km · 1 min · South State Highway 215
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4
Continue on Monticous Road
1.9 mi · 3 min · Monticous Road
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5
Turn right onto State Highway 213
3185 ft · 1 min · State Highway 213
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6
Continue on Monjicono Road
7.2 mi · 13 min · Monjicono Road
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7
Keep slight right to continue on Monjicono Road
5.2 mi · 9 min · Monjicono Road
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8
Continue on Columbia Road
1.5 mi · 2 min · Columbia Road
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9
Continue on South Congress Street
1.7 mi · 3 min · South Congress Street
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10
Turn right onto State Highway 200
16.3 mi · 29 min · State Highway 200
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11
Continue straight
2.9 mi · 4 min
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12
Turn right onto Pendergrass Boulevard
1.3 mi · 2 min · Pendergrass Boulevard
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13
Turn left onto Catawba River Road
7.6 mi · 11 min · Catawba River Road
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14
Take the ramp slight right
114 m · 7 sec
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15
Keep slight left
30 m · 3 sec
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16
Merge slight left onto Texaco Road
137 m · 11 sec · Texaco Road
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17
Turn left onto Lancaster Highway
3.7 mi · 5 min · Lancaster Highway
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18
Continue on Lancaster Bypass
5.3 mi · 6 min · Lancaster Bypass
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19
Take the exit slight right
688 ft · 19 sec
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20
Keep slight right
84 m · 8 sec
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21
Merge slight left onto Pageland Highway
7.4 mi · 8 min · Pageland Highway
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22
Turn right onto Rocky River Road
2 mi · 4 min · Rocky River Road
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23
Enter the roundabout and take exit 1 toward the route
14 m · 1 sec
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24
Exit the roundabout
8 m · 1 sec
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25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Rock Hill and Union.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
State Highway 200
Turn right onto State Highway 200
16.3 mi · 00h 29m
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.
Sunny leaving Rock Hill and Sunny near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rock Hill to Union?
The road trip is about 68.8 miles (110.7 km) and usually takes 01h 47m 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?
Great Falls is a useful midpoint, sitting about 34.4 miles from Rock Hill and 34.4 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 48.3 miles (77.7 km), while the road route adds roughly 20.5 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:56 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.56 one way or $19.12 round trip. Estimated CO2 is about 21.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Rock Hill and Sunny near Union.
Stop Ideas Near Great Falls
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 Great Falls.
Camden
Columbia
Charlotte
Gastonia
Flight Path Map
This map shows the direct air route between Rock Hill and Union. Straight-line distance: 48.27 mi (77.69 km).
#1 Rock Hill
The second most populous city in York County, South Carolina.
| Population | 76,318 |
| Coordinates | 34.2518200, -81.2550900 |
| Altitude | 132 |
| Country | United States |
#2 Union
County seat of Union County, South Carolina
| Population | 7,535 |
| Coordinates | 34.7157100, -80.6211800 |
| Altitude | 195 |
| Country | United States |
End: Union (-80.62118, 34.71571)
Estimated Travel Time
Distance: 111 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 17m |
| 40 mph (64.37 km/h) | 01h 43m |
| 50 mph (80.47 km/h) | 01h 22m |
| 60 mph (96.56 km/h) | 01h 08m |
| 70 mph (112.65 km/h) | 00h 58m |
| 80 mph (129 km/h) | 00h 51m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.94 | $9.56 | $19.12 |
| Mid-grade | $4.40 | $10.69 | $21.38 |
| Premium | $4.80 | $11.67 | $23.34 |
| Diesel | $5.84 | $14.19 | $28.37 |
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 · Oct 15, 2026