How far is Johnson City, TN from Union, TN?
The driving distance from Johnson City, TN to Union, TN is about 200.6 miles (322.8 km), with a travel time of about 03h 52m by car.
- The straight-line flight distance is about 164.6 miles (264.9 km).
- For a round trip, plan for roughly 07h 45m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 52m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
The most populous city in Tennessee.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny then Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Johnson City and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Johnson City and Union.
-
1
Start on the route
132 m · 35 sec
-
2
Turn left onto Buffalo Street
1620 ft · 56 sec · Buffalo Street
-
3
Turn left onto North Roan Street
1633 ft · 37 sec · North Roan Street
-
4
Turn right onto East Watauga Avenue
1812 ft · 45 sec · East Watauga Avenue
-
5
Turn left onto Oak Street
135 m · 11 sec · Oak Street
-
6
Take the ramp straight
962 ft · 24 sec
-
7
Merge slight left onto James H. Quillen Parkway
13.7 mi · 16 min · James H. Quillen Parkway
-
8
Take the exit slight right toward I 81 South: Knoxville
1100 ft · 38 sec
-
9
Merge slight left
56.4 mi · 1 hr
-
10
Continue on I 40 West: Knoxville
1.1 km · 45 sec
-
11
Merge slight left
52.8 mi · 59 min
-
12
Keep slight left to continue on I 75 South: Chattanooga
59.9 mi · 1 hr 4 min
-
13
Take the exit slight right toward SR 60: Cleveland, Dayton
947 ft · 27 sec
-
14
Turn right onto Georgetown Road Northwest
962 ft · 20 sec · Georgetown Road Northwest
-
15
Continue on 25th Street Northwest
554 ft · 12 sec · 25th Street Northwest
-
16
Continue on 25th Street NW
3052 ft · 60 sec · 25th Street NW
-
17
Continue on 25th Street Northwest
3.4 mi · 5 min · 25th Street Northwest
-
18
Continue on Appalachian Highway
1.2 mi · 2 min · Appalachian Highway
-
19
Take the exit slight right
812 ft · 22 sec
-
20
Keep slight left
30 m · 8 sec
-
21
Turn left onto Spring Place Road Southeast
8.4 mi · 15 min · Spring Place Road Southeast
-
22
Turn slight right onto Hughes Lake Road Southeast
1.3 mi · 3 min · Hughes Lake Road Southeast
-
23
Arrive at your destination
0 m · 1 sec · Hughes Lake Road Southeast
Car Route Details
A richer read on the saved driving route between Johnson City 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 longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny then Chance Rain Showers leaving Johnson City and Sunny near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Johnson City to Union?
The road trip is about 200.6 miles (322.8 km) and usually takes 03h 52m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Knoxville is a useful midpoint, sitting about 100.2 miles from Johnson City and 100.4 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 164.6 miles (264.9 km), while the road route adds roughly 36 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 9:14 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.64 one way or $55.28 round trip. Estimated CO2 is about 62.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny then Chance Rain Showers around Johnson City and Sunny near Union.
Flight Path Map
This map shows the direct air route between Johnson City and Union. Straight-line distance: 164.59 mi (264.88 km).
#1 Johnson City
The most populous city in Washington County, Tennessee.
| Population | 66,906 |
| Coordinates | 36.3134400, -82.3534700 |
| Altitude | 498 |
| 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: 323 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 40m |
| 40 mph (64.37 km/h) | 05h 00m |
| 50 mph (80.47 km/h) | 04h 00m |
| 60 mph (96.56 km/h) | 03h 20m |
| 70 mph (112.65 km/h) | 02h 51m |
| 80 mph (129 km/h) | 02h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.90 | $27.64 | $55.28 |
| Mid-grade | $4.37 | $30.90 | $61.81 |
| Premium | $4.77 | $33.80 | $67.60 |
| Diesel | $6.00 | $42.49 | $84.99 |
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