How far is Union, KY from Louisville, KY?
The driving distance from Union, KY to Louisville, KY is about 84.6 miles (136.1 km), with a travel time of about 01h 24m by car.
- The straight-line flight distance is about 75.4 miles (121.3 km).
- For a round trip, plan for roughly 02h 48m 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 24m.
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.
Human settlement in Carroll County, Kentucky, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Union and Louisville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Louisville.
-
1
Start on Union School Road
45 m · 12 sec · Union School Road
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2
Turn left onto Old Union Road
110 m · 9 sec · Old Union Road
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3
Enter the roundabout and take exit 3 toward Mount Zion Road
59 m · 4 sec · Mount Zion Road
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4
Exit the roundabout onto Mount Zion Road
1128 ft · 26 sec · Mount Zion Road
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5
Turn right
797 ft · 13 sec
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6
Continue straight
7.7 mi · 11 min
-
7
Turn left onto Verona-Mudlick Road
2.1 mi · 4 min · Verona-Mudlick Road
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8
Take the ramp right
1320 ft · 32 sec
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9
Merge slight left
71.7 mi · 1 hr 19 min
-
10
Take the exit slight right toward I 64 West: Saint Louis
2994 ft · 1 min
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11
Merge slight left
1.4 km · 1 min
-
12
Take the exit slight right toward 3rd Street, River Road, Downtown
1223 ft · 30 sec
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13
Continue on North 3rd Street
1839 ft · 40 sec · North 3rd Street
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14
Turn right onto West Jefferson Street
1181 ft · 44 sec · West Jefferson Street
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15
Arrive at your destination
0 m · 1 sec · West Jefferson Street
Car Route Details
A richer read on the saved driving route between Union and Louisville.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Verona-Mudlick Road
Merge slight left
71.7 mi · 01h 19m
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.
Rain Showers leaving Union and Showers And Thunderstorms near Louisville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Louisville?
The road trip is about 84.6 miles (136.1 km) and usually takes 01h 24m 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?
Prestonville is a useful midpoint, sitting about 42.3 miles from Union and 42.4 miles from Louisville.
How much longer is the road route than the straight-line distance?
The direct path is about 75.4 miles (121.3 km), while the road route adds roughly 9.2 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 3:42 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.28 one way or $22.55 round trip. Estimated CO2 is about 26.6 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Union and Showers And Thunderstorms near Louisville.
Stop Ideas Near Prestonville
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 Prestonville.
Louisville, Kentucky
Cincinnati Museum Center at Union Terminal
Cincinnati, OH
Connersville station
Flight Path Map
This map shows the direct air route between Union and Louisville. Straight-line distance: 75.35 mi (121.27 km).
#1 Union
Township in Boone County, Iowa
| Population | 6,116 |
| Coordinates | 38.9459000, -84.6805000 |
| Altitude | 255 |
| Country | United States |
#2 Louisville
The nineteenth most populous city in the United States and the center of the Louisville metropolitan area.
| Population | 760,026 |
| Coordinates | 38.2542400, -85.7594100 |
| Altitude | 142 |
| Country | United States |
End: West Jefferson Street (-85.759435, 38.254101)
Estimated Travel Time
Distance: 136 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 49m |
| 40 mph (64.37 km/h) | 02h 06m |
| 50 mph (80.47 km/h) | 01h 41m |
| 60 mph (96.56 km/h) | 01h 24m |
| 70 mph (112.65 km/h) | 01h 12m |
| 80 mph (129 km/h) | 01h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $11.28 | $22.55 |
| Mid-grade | $4.25 | $12.72 | $25.43 |
| Premium | $4.65 | $13.92 | $27.83 |
| Diesel | $5.30 | $15.86 | $31.72 |
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 Kentucky · May 06, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.