How far is Portland, TN from Johnson City, TN?
The driving distance from Portland, TN to Johnson City, TN is about 291.6 miles (469.3 km), with a travel time of about 04h 28m by car.
- The straight-line flight distance is about 232.1 miles (373.5 km).
- For a round trip, plan for roughly 08h 56m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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 04h 28m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Tennessee
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Portland and Johnson City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portland and Johnson City.
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1
Start on North Broadway
17.6 mi · 20 min · North Broadway
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2
Take the exit slight right
89 m · 8 sec
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3
Merge slight left onto South Water Avenue
2.1 mi · 3 min · South Water Avenue
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4
Continue straight
7.1 mi · 12 min
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5
Continue straight
3.6 mi · 4 min
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6
Turn left onto I 40 East: Knoxville
2310 ft · 58 sec
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7
Merge slight left
152.3 mi · 2 hr 46 min
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8
Keep slight left
36.7 mi · 41 min
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9
Keep slight left to continue on I 81 North: Bristol
56.6 mi · 1 hr 1 min
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10
Take the exit slight right toward I 26 East, US 23 South: Johnson City, Asheville
2112 ft · 40 sec
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11
Merge slight left onto James H. Quillen Parkway
14 mi · 17 min · James H. Quillen Parkway
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12
Take the exit slight right toward TN 91
614 ft · 15 sec
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13
Turn right onto East Market Street
1705 ft · 36 sec · East Market Street
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14
Turn left onto Buffalo Street
977 ft · 32 sec · Buffalo Street
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15
Turn right
132 m · 32 sec
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16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Portland and Johnson City.
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 40 East
Merge slight left
152 mi · 02h 46m
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.
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms leaving Portland and Showers And Thunderstorms near Johnson City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portland to Johnson City?
The road trip is about 291.6 miles (469.3 km) and usually takes 04h 28m 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?
Harriman is a useful midpoint, sitting about 145.6 miles from Portland and 146 miles from Johnson City.
How much longer is the road route than the straight-line distance?
The direct path is about 232.1 miles (373.5 km), while the road route adds roughly 59.5 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 CDT. If you want a more comfortable same-day return, try to leave by 8:04 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.80 one way or $77.61 round trip. Estimated CO2 is about 91.4 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Portland and Johnson City, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely then Chance Showers And Thunderstorms around Portland and Showers And Thunderstorms near Johnson City.
Flight Path Map
This map shows the direct air route between Portland and Johnson City. Straight-line distance: 232.09 mi (373.52 km).
#1 Portland
City in Sumner County, Tennessee, United States
| Population | 13,301 |
| Coordinates | 36.5817100, -86.5163800 |
| Altitude | 244 |
| 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: Cherry Street (-82.353659, 36.313645)
Estimated Travel Time
Distance: 469 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 43m |
| 40 mph (64.37 km/h) | 07h 17m |
| 50 mph (80.47 km/h) | 05h 49m |
| 60 mph (96.56 km/h) | 04h 51m |
| 70 mph (112.65 km/h) | 04h 09m |
| 80 mph (129 km/h) | 03h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $38.80 | $77.61 |
| Mid-grade | $4.25 | $43.76 | $87.53 |
| Premium | $4.65 | $47.89 | $95.78 |
| Diesel | $5.30 | $54.58 | $109.16 |
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 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.