How far is Union, TN from Knoxville, TN?
The driving distance from Union, TN to Knoxville, TN is about 95.3 miles (153.4 km), with a travel time of about 01h 35m by car.
- The straight-line flight distance is about 82.4 miles (132.6 km).
- For a round trip, plan for roughly 03h 10m 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 35m.
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
Driving Route Map
The map below follows the saved road route between Union and Knoxville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Knoxville.
-
1
Start on Hughes Lake Road Southeast
1.3 mi · 3 min · Hughes Lake Road Southeast
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2
Turn slight left onto Spring Place Road Southeast
8.2 mi · 14 min · Spring Place Road Southeast
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3
Take the ramp right
1474 ft · 40 sec
-
4
Merge slight left onto Appalachian Highway
1.2 mi · 2 min · Appalachian Highway
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5
Continue on 25th Street Northeast
3.3 mi · 5 min · 25th Street Northeast
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6
Continue on 25th Street NW
2998 ft · 59 sec · 25th Street NW
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7
Continue on 25th Street Northwest
839 ft · 18 sec · 25th Street Northwest
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8
Take the exit right
1431 ft · 35 sec
-
9
Merge slight left
75.8 mi · 1 hr 23 min
-
10
Keep slight left
2.9 mi · 4 min
-
11
Take the exit slight right toward Convention Center, East Tennessee History Center, Museum of Art
2116 ft · 28 sec
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12
Keep slight left to continue on Convention Center, East Tennessee History Center, Museum of Art
2403 ft · 56 sec
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13
Continue on Henley Street
1238 ft · 27 sec · Henley Street
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14
Continue on Henley Street
78 m · 12 sec · Henley Street
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15
Arrive at your destination
0 m · 1 sec · Henley Street
Car Route Details
A richer read on the saved driving route between Union and Knoxville.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
25th Street Northwest
Merge slight left
75.8 mi · 01h 23m
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 Union and Sunny near Knoxville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Knoxville?
The road trip is about 95.3 miles (153.4 km) and usually takes 01h 35m 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 47.6 miles from Union and 47.7 miles from Knoxville.
How much longer is the road route than the straight-line distance?
The direct path is about 82.4 miles (132.6 km), while the road route adds roughly 12.9 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 3:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.12 one way or $26.23 round trip. Estimated CO2 is about 29.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Union and Sunny near Knoxville.
Flight Path Map
This map shows the direct air route between Union and Knoxville. Straight-line distance: 82.38 mi (132.58 km).
#1 Union
Union is a place in Tennessee, United States.
| Population | 0 |
| Coordinates | 35.0139600, -84.8110500 |
| Altitude | 243 |
| Country | United States |
#2 Knoxville
The most populous city in Tennessee.
| Population | 190,223 |
| Coordinates | 35.9606400, -83.9207400 |
| Altitude | 276 |
| Country | United States |
End: US 11 (-83.920795, 35.960617)
Estimated Travel Time
Distance: 153 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 10m |
| 40 mph (64.37 km/h) | 02h 23m |
| 50 mph (80.47 km/h) | 01h 54m |
| 60 mph (96.56 km/h) | 01h 35m |
| 70 mph (112.65 km/h) | 01h 21m |
| 80 mph (129 km/h) | 01h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.90 | $13.12 | $26.23 |
| Mid-grade | $4.37 | $14.67 | $29.33 |
| Premium | $4.77 | $16.04 | $32.08 |
| Diesel | $6.00 | $20.17 | $40.33 |
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