East Chattanooga, TN to Oak Hill, TN is 225.3 miles and takes about 4h 27m via I-75 and I-81, with a fuel budget near $36 and enough daylight to finish in a day. This trip stays within Tennessee, moving from the Southeast region to the Southeast region. The majority of your drive will be on major interstates, making for a straightforward and efficient transit. If you're looking for a quick hop between two points without much fuss, this route fits the bill perfectly, allowing you to reach your destination with plenty of time to spare.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
112.7 miles from East Chattanooga, TN
A natural place for your longest stop of the day
, about 2h 9m into the drive
.
Main Roads
Road
Distance
Duration
I 75
72.2 mi
1h 18m
I 81
56.6 mi
1h
I 40
36.7 mi
40m
US 11
21.7 mi
24m
James H. Quillen Parkway
15.1 mi
18m
Bonny Oaks Drive
6.8 mi
12m
Laurels Road
3.9 mi
6m
Dry Creek Road
2.6 mi
4m
Longest stretch:
I 75
— 72.2 mi, about 1h 18m
Turn-by-Turn Driving Directions
Step-by-step road directions between East Chattanooga, TN and Oak Hill, TN.
1
Start on North Chamberlain Avenue
52 ft·3 sec·North Chamberlain Avenue
2
Turn right onto SR 17
0.3 mi·40 sec·Glass Street
3
At end of road, turn left onto SR 17
0.6 mi·1 min·Campbell Street
4
Continue on SR 17
1.8 mi·3 min·Bonny Oaks Drive
5
Continue on SR 317
5.0 mi·8 min·Bonny Oaks Drive
6
Take the ramp onto US 11; US 64; SR 317
0.3 mi·34 sec·US 11; US 64; SR 317
Use the right lane.
7
Keep slight left at fork onto US 11; US 64; SR 317
21 mi·23 min·US 11; US 64; SR 317
Use the straight lane.
8
Continue on I 75
72 mi·1 hr 18 min·I 75
Use the slight right lane.
9
Keep slight left at fork onto I 40
37 mi·40 min·I 40
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 81
57 mi·1 hr·I 81
Exit 421Toward I 81 North: Bristol
11
Take the exit
0.4 mi·40 sec
Exit 57AToward I 26 East, US 23 South: Johnson City, Asheville
12
Merge onto I 26; US 23
15 mi·18 min·James H. Quillen Parkway
13
Take the exit
0.1 mi·16 sec
Exit 24Use the slight right lane.
14
Turn slight right
342 ft·8 sec
15
Merge onto US 321; SR 67
0.2 mi·23 sec·University Parkway
16
Take the exit
0.2 mi·29 sec
Toward Milligan Highway
17
Turn right onto Milligan Highway
2.2 mi·3 min·Milligan Highway
18
Turn right onto SR 359
0.8 mi·1 min·Okolona Road
19
Turn left onto SR 361
3.9 mi·6 min·Laurels Road
20
Continue on SR 361
2.6 mi·4 min·Dry Creek Road
21
At end of road, turn right onto SR 361
2.2 mi·3 min·Gap Creek Road
22
Turn right onto Rittertown Road
1.1 mi·2 min·Rittertown Road
23
Turn right onto Browns Branch Road
1.6 mi·6 min·Browns Branch Road
24
Arrive at destination
Browns Branch Road
Trip Plan
Given the 4 hour 27 minute estimated drive time, starting your trip in the morning will allow you to arrive well before evening. With only one recommended stop and a fuel cost estimated at $36, this is a very manageable one-day drive. Keep an eye on your fuel gauge, especially during the 72.2-mile stretch on I-75, to ensure you don't need to detour for gas. The high percentage of highway driving means you can maintain a consistent pace, but be aware of the potential for increased traffic as you approach any urban areas along I-40.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 112.7 miles from East Chattanooga, TN, or about 2h 9m into the drive.
The longest continuous stretch on this route runs about 72.2 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 50 miles or 1h in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 112.7 miles or 2h 9m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 27m
Traffic, exits, and arrival timing usually matter more near Oak Hill, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving East Chattanooga, TN so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from East Chattanooga, TN
This is one driving day of about 225.3 miles and 4h 27m.
Your first comfortable stop window is around 50 miles from East Chattanooga, TN.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 75 for about 72.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 17
5 decision points cluster between mile 8.1 and 210.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
8.1 mi into trip|~14m in|US 11; US 64; SR 317
Keep slight left at fork onto US 11; US 64; SR 317
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight lane.
6
101.6 mi into trip|~1h 56m in|I 40
Keep slight left at fork onto I 40
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
138.4 mi into trip|~2h 37m in|I 81
Keep slight left at fork onto I 81 toward I 81 North: Bristol
Highway fork - watch signs carefully
Exit 421
Toward I 81 North: Bristol
6
195 mi into trip|~3h 38m in
Take the exit toward I 26 East, US 23 South: Johnson City, Asheville
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 57A
Toward I 26 East, US 23 South: Johnson City, As...
6
210.5 mi into trip|~3h 57m in
Take the exit
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 24
Fuel & Cost
Regular Gas
$33.27 one way
$66.54 round trip
$3.75/gal25.4 MPG avg79 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.14
$36.73
$73.46
premium
$4.72
$41.83
$83.66
diesel
$4.80
$42.54
$85.08
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$33
Meals
$25–$50
Total
$58–$83
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 78.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $24 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
67.6
0
$23.66
$10.81
Efficient EV
56.3
0
$19.71
$9.01
EV Truck/SUV
90.1
1
$31.54
$14.42
Gas CO2
79 kg
EV CO2
26 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 18, 2026
Origin
East Chattanooga, TN
Afternoon
in East Chattanooga on Sunday
Local time
1:13 PM
EDT
Current temp
90°F
Chance Showers And Thunderstorms
NW 5 mph39% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 18 at 2:09PM CDT by NWS Nashville TN
Special Weather Statement
Special Weather Statement issued July 18 at 3:02PM EDT by NWS Morristown TN
Destination
Oak Hill, TN
Afternoon
in Oak Hill on Sunday
Local time
1:13 PM
EDT
Current temp
77°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
13 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 27m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Great Smoky Mountains National Park
National Park
Ridge upon ridge of forest straddles the border between North Carolina and Tennessee in Great Smoky Mountains National Park. World renowned for its diversity of plant and animal life, the beauty of it...
27 mi from route
~68 min detour
Free
near mile 124.3
Park Closure: Park Headquarters Road closed
Park Closure: Elkmont/Sugarlands Dump Station is temporarily closed
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect to spend about 90% of your time on the interstate, which translates to a mostly highway driving experience. The longest continuous stretch you'll encounter without a major exit is 72.2 miles on I-75. As you transition from I-75 to I-81 and then to I-40, you'll notice a consistent flow of traffic typical of major corridors. The route generally maintains a high-speed cruising environment for most of its length.
90% highway — fuel and pacing are the main things to plan.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 72.2 mi on I 75.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 75 and I 81. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 8.1 miles in near US 11; US 64; SR 317.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 17 significant decision points across 225.3 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 8.1 miles (US 11; US 64; SR 317): Highway fork - watch signs carefully. Lane positioning matters here; at 101.6 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here; at 138.4 miles (I 81): Highway fork - watch signs carefully.
Elevation Profile
Gently rolling terrain
2,586 ft684 ft
Total Climb
2,331 ft
Total Descent
430 ft
Highest Point
2,586 ft
~225.3 mi in
Elevation Range
1,902 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between East Chattanooga, TN and Oak Hill, TN, road signs point toward Asheville and Milligan Highway.
Doable as a same-day drive at 4h 27m. Total distance: 225.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 27m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (90%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 72.2 miles on I 75. The full list of main roads is in the Roads section above.
Yes — we found about 23 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Oak Hill, TN before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 23 rest areas along the route for bathroom stops.
The main spots that need attention: at 8.1 miles (US 11; US 64; SR 317): Highway fork - watch signs carefully. Lane positioning matters here; at 101.6 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here; at 138.4 miles (I 81): Highway fork - watch signs carefully.
Yes — Great Smoky Mountains National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 8.9 hours — manageable with a long break at Oak Hill, TN, but most travelers stay overnight.
