How far is Decatur, TN from Johnson City, TN?
The driving distance from Decatur, TN to Johnson City, TN is about 170.4 miles (274.2 km), with a travel time of about 03h 13m by car.
- The straight-line flight distance is about 147.1 miles (236.7 km).
- For a round trip, plan for roughly 06h 26m 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 13m.
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.
Town in Seiver County, Tennessee, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Decatur and Johnson City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Johnson City.
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1
Start on Highway 58
20 m · 9 sec · Highway 58
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2
Turn left onto West Memorial Drive
2212 ft · 44 sec · West Memorial Drive
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3
At the end of the road, turn left onto Decatur Pike
9.1 mi · 14 min · Decatur Pike
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4
Take the ramp left
1531 ft · 37 sec
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5
Merge slight left
52.1 mi · 57 min
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6
Keep slight left
36.7 mi · 41 min
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7
Keep slight left to continue on I 81 North: Bristol
56.6 mi · 1 hr 1 min
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8
Take the exit slight right toward I 26 East, US 23 South: Johnson City, Asheville
2112 ft · 40 sec
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9
Merge slight left onto James H. Quillen Parkway
14 mi · 17 min · James H. Quillen Parkway
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10
Take the exit slight right toward TN 91
614 ft · 15 sec
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11
Turn right onto East Market Street
1705 ft · 38 sec · East Market Street
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12
Turn left onto Buffalo Street
977 ft · 32 sec · Buffalo Street
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13
Turn right
132 m · 32 sec
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Decatur and Johnson City.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 81 North
Keep slight left to continue on I 81 North: Bristol
56.6 mi · 01h 01m
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.
Partly Sunny leaving Decatur and Partly Sunny then Slight Chance Rain Showers near Johnson City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Johnson City?
The road trip is about 170.4 miles (274.2 km) and usually takes 03h 13m 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?
Sevierville is a useful midpoint, sitting about 85.1 miles from Decatur and 85.3 miles from Johnson City.
How much longer is the road route than the straight-line distance?
The direct path is about 147.1 miles (236.7 km), while the road route adds roughly 23.3 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 10:34 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.66 one way or $45.33 round trip. Estimated CO2 is about 53.4 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Decatur and Partly Sunny then Slight Chance Rain Showers near Johnson City.
Flight Path Map
This map shows the direct air route between Decatur and Johnson City. Straight-line distance: 147.09 mi (236.72 km).
#1 Decatur
Human settlement in Meigs County, Tennessee, United States of America
| Population | 1,663 |
| Coordinates | 35.5147900, -84.7902200 |
| Altitude | 237 |
| Country | United States |
#2 Johnson City
The most populous city in Washington County, Tennessee.
| Population | 66,906 |
| Coordinates | 36.3134400, -82.3534700 |
| Altitude | 498 |
| Country | United States |
End: Johnson City (-82.35347, 36.31344)
Estimated Travel Time
Distance: 274 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 40m |
| 40 mph (64.37 km/h) | 04h 15m |
| 50 mph (80.47 km/h) | 03h 24m |
| 60 mph (96.56 km/h) | 02h 50m |
| 70 mph (112.65 km/h) | 02h 26m |
| 80 mph (129 km/h) | 02h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $22.66 | $45.33 |
| Mid-grade | $4.25 | $25.56 | $51.12 |
| Premium | $4.65 | $27.97 | $55.94 |
| Diesel | $5.30 | $31.88 | $63.75 |
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 · Apr 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.