How far is Portland, TN from Chattanooga, TN?
The driving distance from Portland, TN to Chattanooga, TN is about 158.6 miles (255.3 km), with a travel time of about 02h 35m by car.
- The straight-line flight distance is about 125.8 miles (202.5 km).
- For a round trip, plan for roughly 05h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 35m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Human settlement in Bedford County, Tennessee, United States of America
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 Chattanooga.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portland and Chattanooga.
-
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
-
3
Merge slight left onto South Water Avenue
2.1 mi · 3 min · South Water Avenue
-
4
Continue straight
7.1 mi · 12 min
-
5
Continue straight
7.2 mi · 9 min
-
6
Take the exit slight right toward I 840 West: Chattanooga
2259 ft · 55 sec
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7
Merge slight left onto Tennessee National Guard Parkway
17.9 mi · 19 min · Tennessee National Guard Parkway
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8
Take the exit slight right toward I 24: Chattanooga, Nashville
999 ft · 24 sec
-
9
Keep slight left to continue on I 24 East: Chattanooga
1.1 mi · 2 min
-
10
Merge slight left
103.1 mi · 1 hr 55 min
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11
Take the exit slight right toward US 27 North: Downtown Chattanooga
2163 ft · 47 sec
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12
Continue straight
1.2 km · 60 sec
-
13
Take the exit slight right toward Downtown
1123 ft · 26 sec
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14
Turn right onto West Martin Luther King Boulevard
897 ft · 30 sec · West Martin Luther King Boulevard
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15
Arrive at your destination
0 m · 1 sec · West Martin Luther King Boulevard
Car Route Details
A richer read on the saved driving route between Portland and Chattanooga.
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 24 East
Merge slight left
103 mi · 01h 55m
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.
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms leaving Portland and Showers And Thunderstorms near Chattanooga.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portland to Chattanooga?
The road trip is about 158.6 miles (255.3 km) and usually takes 02h 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?
Wartrace is a useful midpoint, sitting about 79.2 miles from Portland and 79.4 miles from Chattanooga.
How much longer is the road route than the straight-line distance?
The direct path is about 125.8 miles (202.5 km), while the road route adds roughly 32.8 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 CDT. If you want a more comfortable same-day return, try to leave by 1:20 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.12 one way or $42.24 round trip. Estimated CO2 is about 49.8 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Portland and Chattanooga, 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 Chattanooga.
Stop Ideas Near Wartrace
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Wartrace.
Nashville, TN
Flight Path Map
This map shows the direct air route between Portland and Chattanooga. Straight-line distance: 125.83 mi (202.51 km).
#1 Portland
City in Sumner County, Tennessee, United States
| Population | 13,301 |
| Coordinates | 36.5817100, -86.5163800 |
| Altitude | 244 |
| Country | United States |
#2 Chattanooga
The fourth most populous city in Tennessee.
| Population | 184,742 |
| Coordinates | 35.0456300, -85.3096800 |
| Altitude | 206 |
| Country | United States |
End: West Martin Luther King Boulevard (-85.309688, 35.045753)
Estimated Travel Time
Distance: 255 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 17m |
| 40 mph (64.37 km/h) | 03h 57m |
| 50 mph (80.47 km/h) | 03h 10m |
| 60 mph (96.56 km/h) | 02h 38m |
| 70 mph (112.65 km/h) | 02h 15m |
| 80 mph (129 km/h) | 01h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $21.12 | $42.24 |
| Mid-grade | $4.25 | $23.82 | $47.63 |
| Premium | $4.65 | $26.06 | $52.12 |
| Diesel | $5.30 | $29.70 | $59.40 |
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.