The drive from Mountain City, TN to Knoxville, TN covers 145.9 miles and takes about 2h 43m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 81, I 40, Daniel Boone Trail for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 69.2 miles on I 81.
At current regular gas prices, budget about $22.81 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
72.9 miles from Mountain City, TN
A natural place for your longest stop of the day
, about 1h 22m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 43m. Total distance: 145.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 43m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (78%). Some complex stretches to watch for.
Drive Character
This is a 2h 43m highway drive covering 145.9 miles, with most of the trip on I 81 and I 40. The longest continuous stretch is about 69.2 miles on I 81.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 17 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 81 is the longest continuous segment at about 69.2 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 81 and I 40. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes around 29.4 miles in near TN 394 / Tennessee Ernie Ford Parkway.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 145.9 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 29.4 miles (TN 394 / Tennessee Ernie Ford Parkway): Lane positioning matters here; at 42.5 miles: Lane positioning matters here; at 143.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 9 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
29.4 mi into trip|~33m in|TN 394 / Tennessee Ernie Ford Parkway
Turn left onto TN 394 / Tennessee Ernie Ford Parkway
Lane positioning matters here
Use the straight lane.
6
42.5 mi into trip|~49m in
Turn left toward I 81 South
Lane positioning matters here
Use the left lane.
Toward I 81 South
8
143.5 mi into trip|~2h 39m in
Take the exit toward SR 158 West: Downtown, University of Tennessee
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 388A; 389
Toward SR 158 West: Downtown, University of Ten...
6
143.8 mi into trip|~2h 39m in
Keep slight left at fork toward TN 158 West, South US 441: James White Parkway, Downtown, University of Tennessee
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward TN 158 West, South US 441: James White P...
6
145.1 mi into trip|~2h 41m in|TN 158 / Neyland Drive
Keep slight right at fork onto TN 158 / Neyland Drive toward TN 158 West: Neyland Drive, University of Tennessee
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward TN 158 West: Neyland Drive, University o...
Main Roads
Road
Distance
Duration
I 81
69.2 mi
1h 14m
I 40
31.5 mi
34m
Daniel Boone Trail
18.2 mi
20m
Tennessee Ernie Ford Parkway
13 mi
15m
North Shady Street
11 mi
12m
James White Parkway
0.4 mi
<1m
Cumberland Avenue
0.3 mi
<1m
West Main Street
0.3 mi
<1m
Longest stretch:
I 81
— 69.2 mi, about 1h 14m
Turn-by-Turn Driving Directions
Step-by-step road directions between Mountain City, TN and Knoxville, TN.
1
Start on SR 418
0.3 mi·32 sec·West Main Street
2
Turn right onto US 421
11 mi·12 min·North Shady Street
3
Continue on US 421
18 mi·20 min·Daniel Boone Trail
4
Turn left onto TN 394
13 mi·15 min·Tennessee Ernie Ford Parkway
Use the straight lane.
5
Turn left
0.3 mi·45 sec
Toward I 81 SouthUse the left lane.
6
Merge onto I 81
68 mi·1 hr 13 min·I 81
7
Continue on I 81
0.7 mi·45 sec·I 81
Exit 1BToward I 40 West: Knoxville
8
Merge onto I 40
32 mi·34 min·I 40
Use the straight / slight right lanes.
9
Take the exit
0.3 mi·26 sec
Exit 388A; 389Toward SR 158 West: Downtown, University of TennesseeUse the slight right lane.
10
Keep slight left at fork
0.9 mi·2 min
Toward TN 158 West, South US 441: James White Parkway, Downtown, University of Tennessee
11
Continue on TN 158
0.4 mi·23 sec·James White Parkway
12
Keep slight right at fork onto TN 158
0.1 mi·14 sec·Neyland Drive
Toward TN 158 West: Neyland Drive, University of Tennessee
13
Take the exit
0.2 mi·31 sec
Toward Downtown, Cumerland Avenue
14
Continue on Cumberland Avenue
0.3 mi·37 sec·Cumberland Avenue
15
Turn left onto US 441
393 ft·16 sec·Henley Street
16
Continue on US 441
255 ft·11 sec·Henley Street
17
Arrive at destination
US 441
Trip Plan
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 72.9 miles from Mountain City, TN, or about 1h 22m into the drive.
The longest continuous stretch on this route runs about 69.2 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 32 miles or 36m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 72.9 miles or 1h 22m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 12m
Traffic, exits, and arrival timing usually matter more near Knoxville, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving Mountain City, 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 Mountain City, TN
This is one driving day of about 145.9 miles and 2h 43m.
Your first comfortable stop window is around 32 miles from Mountain City, 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 81 for about 69.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 72.9 mi from Mountain City, TN
· 1h 22m into the drive
The midpoint is around 72.9 miles from Mountain City, TN, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before I 81 if your tank is already low. That segment runs about 69.2 miles.
Arriving in Knoxville, TN
The final approach into Knoxville, TN usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Knoxville, TN.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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 125.8
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$22.81 one way
$45.62 round trip
$3.97/gal25.4 MPG avg51 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$25.04
$50.09
premium
$4.89
$28.08
$56.15
diesel
$5.61
$32.21
$64.43
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$23
Meals
$25–$50
Total
$48–$73
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 51 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $15 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
43.8
0
$15.32
$7.00
Efficient EV
36.5
0
$12.77
$5.84
EV Truck/SUV
58.4
0
$20.43
$9.34
Gas CO2
51 kg
EV CO2
17 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 Apr 15, 2026
Origin
Mountain City, TN
Night
in Mountain City on Friday
Local time
9:23 PM
EDT
Current temp
--
Unavailable
Destination
Knoxville, TN
Night
in Knoxville on Friday
Local time
9:23 PM
EDT
Current temp
74°F
Unavailable
Live forecast
69°F
Bristol, VA
73 mi in
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.
Road read
2h 43m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Mountain City, TN to Knoxville, TN covers 145.9 miles and takes about 2h 43m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 81, I 40, Daniel Boone Trail. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 72.9 miles from Mountain City, TN. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $22.81 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This drive requires moderate attention. Across 145.9 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 29.4 miles (TN 394 / Tennessee Ernie Ford Parkway): Lane positioning matters here; at 42.5 miles: Lane positioning matters here; at 143.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
The route from Mountain City, TN to Knoxville, TN does not surface many named destination signs beyond the main corridor.
Yes. Nearby national parks include Great Smoky Mountains National Park.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
