How far is Erin, TN from Chattanooga, TN?
The driving distance from Erin, TN to Chattanooga, TN is about 196.2 miles (315.7 km), with a travel time of about 03h 18m by car.
- The straight-line flight distance is about 160.1 miles (257.7 km).
- For a round trip, plan for roughly 06h 37m 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 03h 18m.
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.
The second most populous city in Tennessee.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Mostly Clear
Driving Route Map
The map below follows the saved road route between Erin and Chattanooga.
Turn-by-Turn Driving Directions
Step-by-step road directions between Erin and Chattanooga.
-
1
Start on Spring Street
2 m · 2 sec · Spring Street
-
2
Turn right onto East Main Street
5.2 mi · 9 min · East Main Street
-
3
Continue straight
5.2 mi · 8 min
-
4
Turn right onto Yellow Creek Road
14.1 mi · 25 min · Yellow Creek Road
-
5
Continue on Pond Road
2.6 mi · 5 min · Pond Road
-
6
Turn left onto West College Street
80 m · 8 sec · West College Street
-
7
Continue on West College Street
1.5 mi · 3 min · West College Street
-
8
Turn right onto SR 46
4.6 mi · 7 min · SR 46
-
9
Take the exit left
1217 ft · 30 sec
-
10
Merge slight left
3.5 mi · 4 min
-
11
Take the exit slight right toward I 840 East: Knoxville, Franklin
1.1 km · 1 min
-
12
Merge slight left onto Tennessee National Guard Parkway
52.2 mi · 56 min · Tennessee National Guard Parkway
-
13
Take the exit slight right toward I 24 East: Chattanooga
1.3 km · 2 min
-
14
Merge slight left
103.1 mi · 1 hr 55 min
-
15
Take the exit slight right toward US 27 North: Downtown Chattanooga
2163 ft · 47 sec
-
16
Continue straight
1.2 km · 60 sec
-
17
Take the exit slight right toward Downtown
1123 ft · 26 sec
-
18
Turn right onto West Martin Luther King Boulevard
897 ft · 30 sec · West Martin Luther King Boulevard
-
19
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 Erin 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 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 leaving Erin and Mostly Clear near Chattanooga.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Erin to Chattanooga?
The road trip is about 196.2 miles (315.7 km) and usually takes 03h 18m 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?
Murfreesboro is a useful midpoint, sitting about 97.7 miles from Erin and 98.5 miles from Chattanooga.
How much longer is the road route than the straight-line distance?
The direct path is about 160.1 miles (257.7 km), while the road route adds roughly 36.1 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 10:22 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.10 one way or $52.19 round trip. Estimated CO2 is about 61.5 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Erin 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 around Erin and Mostly Clear near Chattanooga.
Stop Ideas Near Murfreesboro
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 Murfreesboro.
Nashville, TN
Clarksville, TN
Flight Path Map
This map shows the direct air route between Erin and Chattanooga. Straight-line distance: 160.15 mi (257.73 km).
#1 Erin
City in Tennessee, United States
| Population | 1,308 |
| Coordinates | 36.3183900, -87.6947400 |
| Altitude | 136 |
| 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: 316 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 32m |
| 40 mph (64.37 km/h) | 04h 54m |
| 50 mph (80.47 km/h) | 03h 55m |
| 60 mph (96.56 km/h) | 03h 16m |
| 70 mph (112.65 km/h) | 02h 48m |
| 80 mph (129 km/h) | 02h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $26.10 | $52.19 |
| Mid-grade | $4.25 | $29.43 | $58.86 |
| Premium | $4.65 | $32.21 | $64.41 |
| Diesel | $5.30 | $36.70 | $73.41 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.