Origin
Union, SC
Late night in Union on Sunday
Local time
4:07 AM
EDT
Current temp
49°F
Unavailable
Live forecast
Trip from Union, SC to Florence, SC
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
1h 38m
Distance
74.9 mi
121 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$12
one way
EV Charging
Unknown
Best Time to Leave
4 AM
1h 31m
★
6 AM
1h 39m
8 AM
1h 53m
10 AM
1h 44m
12 PM
1h 42m
3 PM
1h 44m
5 PM
1h 53m
8 PM
1h 34m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Union, SC
Sebastián Casimiro
Florence, SC
Wikimedia Commons
Trip Overview
Union, SC to Florence, SC is 74.9 miles and takes about 1 hour 38 minutes via State Hwy 151 Bypass, with a fuel budget near $12 and enough daylight to finish in a day. This drive stays within the Southeast region, making it a straightforward hop across South Carolina. Expect a mixed driving experience that's manageable for a single day trip. With a relatively short distance and duration, you'll have plenty of flexibility for your departure time.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
37.5 miles from Union, SC
A natural place for your longest stop of the day , about 46m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| State Hwy 151 Bypass | 18.2 mi | 20m |
| West Bobo Newsome Highway | 15.1 mi | 21m |
| Pageland Highway | 12.1 mi | 13m |
| State Highway 151 | 10 mi | 12m |
| South Governor Williams Highway | 5.5 mi | 6m |
| Harry Byrd Highway | 4.7 mi | 5m |
| West Lucas Street | 4.6 mi | 7m |
| Rocky River Road | 2 mi | 3m |
Longest stretch:
State Hwy 151 Bypass
— 18.2 mi, about 20m
Turn-by-Turn Driving Directions
Step-by-step road directions between Union, SC and Florence, SC.
1
Start on this road
225 ft
·
13 sec
·
this road
2
Turn sharp left
248 ft
·
7 sec
3
Enter roundabout
161 ft
·
3 sec
4
Continue
152 ft
·
3 sec
5
Turn straight onto SC 522
2.0 mi
·
3 min
·
Rocky River Road
6
Turn right onto SC 9
12 mi
·
13 min
·
Pageland Highway
7
Turn right onto Tory Road
2.0 mi
·
4 min
·
Tory Road
8
At end of road, turn right onto SC 151 Business
451 ft
·
9 sec
·
Pearl Street
9
Merge onto SC 151
4.8 mi
·
5 min
·
State Highway 151
10
Continue on SC 151 Bypass
18 mi
·
20 min
·
State Hwy 151 Bypass
11
Continue on SC 151
5.2 mi
·
6 min
·
State Highway 151
12
Continue on SC 151
15 mi
·
21 min
·
West Bobo Newsome Highway
13
Continue on SC 34; SC 151
4.7 mi
·
5 min
·
Harry Byrd Highway
14
Take the exit
0.2 mi
·
34 sec
15
Merge onto US 52; US 401
5.5 mi
·
6 min
·
South Governor Williams Highway
16
Continue on US 52
4.6 mi
·
7 min
·
West Lucas Street
17
Continue on South Church Street
0.1 mi
·
20 sec
·
South Church Street
18
Turn right
57 ft
·
4 sec
19
Turn slight left
126 ft
·
14 sec
20
At end of road, turn left
44 ft
·
5 sec
21
Turn right
50 ft
·
3 sec
22
Arrive at destination
Trip Plan
Given this is a short, single-day trip of under two hours, you have the luxury of a flexible start. Aim to depart mid-morning to avoid early rush hour and arrive in Florence with ample time. With only $12 estimated for fuel, you shouldn't need to worry about frequent stops for gas. Keep an eye out for the transitions between different road types as you move from bypasses to more local highways, ensuring you're prepared for any changes in speed or traffic.
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 37.5 miles from Union, SC, or about 46m into the drive.
The longest continuous stretch on this route runs about 18.2 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 16 miles or 22m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 37.5 miles or 46m 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 22m
Traffic, exits, and arrival timing usually matter more near Florence, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Union, SC so your first major turns are already loaded.
Day 1
Settle into the route from Union, SC
This is one driving day of about 74.9 miles and 1h 38m.
Your first comfortable stop window is around 16 miles from Union, SC.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on State Hwy 151 Bypass for about 18.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
37 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 16 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 37.5 miles from Union, SC, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 125 decision points cluster between mile 0 and 74.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip
|
~0m in
Turn sharp left
Sharp turn - reduce speed on approach
6
0.1 mi into trip
|
~0m in
Enter roundabout
Roundabout - know your exit number before entering
5
16.2 mi into trip
|
~22m in
|
SC 151 Business / Pearl Street
At end of road, turn right onto SC 151 Business / Pearl Street
Navigation decision point
5
74.9 mi into trip
|
~1h 38m in
Turn right
Navigation decision point
5
74.9 mi into trip
|
~1h 38m in
At end of road, turn left
Navigation decision point
Fuel & Cost
Regular Gas
$11.71 one way
$23.43 round trip
$3.97/gal
25.4 MPG avg
26 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.34 | $12.81 | $25.61 |
| premium | $4.70 | $13.86 | $27.72 |
| diesel | $5.61 | $16.54 | $33.07 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$12
Meals
$25–$50
Total
$37–$62
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 26.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $8 in charging · 0 stops · 65% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 22.5 | 0 | $7.86 | $3.60 |
| Efficient EV | 18.7 | 0 | $6.55 | $3.00 |
| EV Truck/SUV | 30 | 0 | $10.49 | $4.79 |
Gas CO2
26 kg
EV CO2
9 kg (65% 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.
Destination
Florence, SC
Late night in Florence on Sunday
Local time
4:07 AM
EDT
Current temp
74°F
Unavailable
Live forecast
74°F
Pine Ridge, SC
37 mi in
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
25 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
1h 38m 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.
What kind of drive is this?
This route offers a mixed drive, with 38% of the journey on highways. You'll encounter stretches like the 18.2 miles on State Hwy 151 Bypass, offering some continuous travel. The roads are a blend, transitioning between bypasses, highways, and local roads like West Bobo Newsome Highway and Pageland Highway. This variety means you won't be stuck on one type of road for too long, providing a dynamic driving experience.
38% highway, the rest on surface roads — varied driving throughout.
22 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 18.2 mi on State Hwy 151 Bypass.
How Hard Is This Drive?
4/10
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive.
Driving Effort
4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 1h 38m drive. You will face about 12 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start: Sharp turn - reduce speed on approach; at 0.1 miles: Roundabout - know your exit number before entering; at 16.2 miles (SC 151 Business / Pearl Street): Navigation decision point.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 38m. Total distance: 74.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 38m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (38%). Straightforward navigation.
Scenic Drive
Mixed highway & surface route profile.
Frequently Asked Questions
The longest stretch is about 18.2 miles on State Hwy 151 Bypass. The full list of main roads is in the Roads section above.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start: Sharp turn - reduce speed on approach; at 0.1 miles: Roundabout - know your exit number before entering; at 16.2 miles (SC 151 Business / Pearl Street): Navigation decision point.
Yes. A round trip is manageable in a single day if you plan a break at Florence, SC before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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