How far is Spring Hill, TN from Union, TN?
The driving distance from Spring Hill, TN to Union, TN is about 91.1 miles (146.6 km), with a travel time of about 02h 01m by car.
- The straight-line flight distance is about 79.2 miles (127.4 km).
- For a round trip, plan for roughly 04h 02m 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 02h 01m.
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 McMinn County, Tennessee, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Spring Hill and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spring Hill and Union.
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1
Start on Gade Lane
12 m · 5 sec · Gade Lane
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2
Turn right onto Mehaffey Road
1.1 mi · 4 min · Mehaffey Road
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3
Continue on Mehaffey Road
1517 ft · 1 min · Mehaffey Road
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4
Continue on Copper Ridge Road
1 mi · 4 min · Copper Ridge Road
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5
At the end of the road, turn right onto West Emory Road
649 ft · 14 sec · West Emory Road
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6
Turn left onto Beaver Ridge Road
1822 ft · 36 sec · Beaver Ridge Road
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7
Turn slight right onto Byington Beaver Ridge Road
1 mi · 2 min · Byington Beaver Ridge Road
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8
Continue on Byington Solway Road
671 ft · 16 sec · Byington Solway Road
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9
Turn left onto Ball Camp Byington Road
1.4 km · 2 min · Ball Camp Byington Road
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10
At the end of the road, turn left onto Ball Camp Byington Road
1013 ft · 27 sec · Ball Camp Byington Road
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11
Continue on Middlebrook Pike
1023 ft · 27 sec · Middlebrook Pike
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12
Turn right onto Lovell Road
3.9 mi · 7 min · Lovell Road
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13
Take the ramp slight right toward I 40 W, I 75 S: Nashville
1863 ft · 37 sec
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14
Merge slight left
6.1 mi · 7 min
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15
Keep slight left to continue on I 75 South: Chattanooga
59.9 mi · 1 hr 4 min
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16
Take the exit slight right toward SR 60: Cleveland, Dayton
947 ft · 27 sec
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17
Turn right onto Georgetown Road Northwest
962 ft · 20 sec · Georgetown Road Northwest
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18
Continue on 25th Street Northwest
554 ft · 12 sec · 25th Street Northwest
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19
Continue on 25th Street NW
3052 ft · 60 sec · 25th Street NW
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20
Continue on 25th Street Northwest
3.4 mi · 5 min · 25th Street Northwest
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21
Continue on Appalachian Highway
1.2 mi · 2 min · Appalachian Highway
-
22
Take the exit slight right
812 ft · 22 sec
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23
Keep slight left
30 m · 8 sec
-
24
Turn left onto Spring Place Road Southeast
8.4 mi · 15 min · Spring Place Road Southeast
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25
Turn slight right onto Hughes Lake Road Southeast
1.3 mi · 3 min · Hughes Lake Road Southeast
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26
Arrive at your destination
0 m · 1 sec · Hughes Lake Road Southeast
Car Route Details
A richer read on the saved driving route between Spring Hill and Union.
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 75 South
Keep slight left to continue on I 75 South: Chattanooga
59.9 mi · 01h 04m
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 then Slight Chance Rain Showers leaving Spring 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 Spring Hill to Union?
The road trip is about 91.1 miles (146.6 km) and usually takes 02h 01m 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?
Niota is a useful midpoint, sitting about 45.5 miles from Spring Hill and 45.5 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 79.2 miles (127.4 km), while the road route adds roughly 11.9 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:28 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.53 one way or $25.06 round trip. Estimated CO2 is about 28.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny then Slight Chance Rain Showers around Spring Hill and Sunny near Union.
Flight Path Map
This map shows the direct air route between Spring Hill and Union. Straight-line distance: 79.18 mi (127.42 km).
#1 Spring Hill
A city in Maury County, Tennessee.
| Population | 46,152 |
| Coordinates | 36.0139700, -84.1235300 |
| Altitude | 250 |
| Country | United States |
#2 Union
Union is a place in Tennessee, United States.
| Population | 0 |
| Coordinates | 35.0139600, -84.8110500 |
| Altitude | 243 |
| Country | United States |
End: Union (-84.81105, 35.01396)
Estimated Travel Time
Distance: 147 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 02m |
| 40 mph (64.37 km/h) | 02h 16m |
| 50 mph (80.47 km/h) | 01h 49m |
| 60 mph (96.56 km/h) | 01h 31m |
| 70 mph (112.65 km/h) | 01h 18m |
| 80 mph (129 km/h) | 01h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.90 | $12.53 | $25.06 |
| Mid-grade | $4.37 | $14.01 | $28.02 |
| Premium | $4.77 | $15.32 | $30.65 |
| Diesel | $6.00 | $19.27 | $38.53 |
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 Tennessee · Oct 15, 2026