The drive from Caddo Mills, TX to Austin, TX covers 234.6 miles and takes about 4h 13m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on South R L Thornton Freeway, I 35, Purple Heart Trail for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 89.9 miles on South R L Thornton Freeway.
At current regular gas prices, budget about $35.45 one way before food or hotel costs.
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
117.3 miles from Caddo Mills, TX
A natural place for your longest stop of the day
, about 2h 8m into the drive
.
Austin is a city of about 1,054,000 (2026) surpassing Fort Worth to become the 4th most populous city in Texas. It is on the southeast edge of the Hill Country region of Texas, making it the fourth-largest city in the state and the 11th-largest in the country. It is the capital of Texas and a college town, and also a center of an alternative culture away from the major cities on the US coasts, though the city is rapidly gentrifying with its rising popularity. Austin's attitude is commonly emblazoned about town on T-shirts and bumper stickers that read: "Keep Austin Weird." Austin is also marketed as the Live Music Capital of the World due to the large number of venues.
Top landmarks
•Texas State Capitol — capitol and seat of government of the U.S. state of Texas
•Lyndon Baines Johnson Library and Museum — presidential library and museum for U.S. President Lyndon B. Johnson in Austin,...
•Texas State Cemetery — historic cemetery in Austin, Texas, USA
Doable as a same-day drive at 4h 13m. Total distance: 234.6 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 13m drive, comfortable solo distance.
Drive Character
This is a 4h 13m highway drive covering 234.6 miles, with most of the trip on South R L Thornton Freeway and I 35. The longest continuous stretch is about 89.9 miles on South R L Thornton Freeway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 23 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
South R L Thornton Freeway is the longest continuous segment at about 89.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on South R L Thornton Freeway and I 35. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 39.9 miles in.
Driving Effort7/10
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 234.6 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 39.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 40.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 40.7 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 17 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
39.9 mi into trip|~47m in
Take the exit toward I 35E: Denton, Waco
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 46A
Toward I 35E: Denton, Waco
9
40.6 mi into trip|~49m in
Keep slight left at fork toward I 35E North, I 35E South: Denton, Waco
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 35E North, I 35E South: Denton, Waco
7
40.7 mi into trip|~49m in
Keep slight left at fork toward I 35E South: Waco
Highway fork - watch signs carefully. Lane positioning matters here
Use the left / right lanes.
Toward I 35E South: Waco
8
231.3 mi into trip|~4h 7m in|I 35; US 290 / Purple Heart Trail
Keep slight left at fork onto I 35; US 290 / Purple Heart Trail toward 32nd Street, Dean Keeton Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward 32nd Street, Dean Keeton Street
8
233.7 mi into trip|~4h 10m in
Take the exit toward 8th–3rd Streets, Huston-Tillotson University
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 234B
Toward 8th–3rd Streets, Huston-Tillotson Univer...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Caddo Mills, TX and Austin, TX, road signs point toward Waco, Denton and Dallas Zoo.
Waco
39.9 mi in|~47m
Denton
40.5 mi in|~49m
Dallas Zoo
41.6 mi in|~50m|via I 35E
Main Roads
Road
Distance
Duration
South R L Thornton Freeway
89.9 mi
1h 32m
I 35
55.8 mi
58m
Purple Heart Trail
40.3 mi
42m
Congressman Ralph Hall Highway
29.4 mi
33m
State Highway 66
8.5 mi
10m
North Jack Kultgen Expressway
6.6 mi
7m
West Interstate 30
1.1 mi
1m
East 6th Street
0.5 mi
1m
Longest stretch:
South R L Thornton Freeway
— 89.9 mi, about 1h 32m
Turn-by-Turn Driving Directions
Step-by-step road directions between Caddo Mills, TX and Austin, TX.
1
Start on FM 36
215 ft·7 sec·Main Street
2
Turn right onto TX 66; FM 36
8.5 mi·10 min·State Highway 66
3
Continue on TX 66
0.3 mi·28 sec·East Main Street
4
Turn left onto FM 548
0.4 mi·42 sec·South Elm Street
5
Turn right onto West Interstate 30
1.1 mi·1 min·West Interstate 30
6
Take the ramp
0.2 mi·26 sec
Toward I 30 West
7
Merge onto I 30; US 67
29 mi·33 min·Congressman Ralph Hall Highway
Use the straight / slight right lanes.
8
Take the exit
0.6 mi·1 min
Exit 46AToward I 35E: Denton, WacoUse the straight / slight right lanes.
9
Keep slight left at fork
0.1 mi·14 sec
Toward I 35E South, I 35E North: Waco, Denton
10
Keep slight left at fork
221 ft·5 sec
Toward I 35E North, I 35E South: Denton, WacoUse the straight / slight right lanes.
11
Keep slight left at fork
0.4 mi·30 sec
Toward I 35E South: WacoUse the left / right lanes.
12
Continue on I 35E
0.5 mi·44 sec·South R L Thornton Freeway
13
Continue on I 35E
89 mi·1 hr 31 min·South R L Thornton Freeway
Exit 426Toward Dallas ZooUse the straight / slight right lanes.
14
Continue on I 35; US 77
6.6 mi·7 min·North Jack Kultgen Expressway
Use the straight / slight right lanes.
15
Continue on I 35
38 mi·39 min·Purple Heart Trail
Use the straight / slight right lanes.
16
Keep slight left at fork onto I 35
56 mi·58 min·I 35
Use the straight / slight right lanes.
17
Keep slight left at fork onto I 35; US 290
2.4 mi·3 min·Purple Heart Trail
Toward 32nd Street, Dean Keeton StreetUse the slight left lane.
18
Take the exit
0.2 mi·26 sec
Exit 234BToward 8th–3rd Streets, Huston-Tillotson UniversityUse the slight right lane.
19
Turn straight onto North Interstate 35
0.2 mi·27 sec·North Interstate 35
Use the straight / right lanes.
20
Turn right onto East 6th Street
0.5 mi·1 min·East 6th Street
Use the right lane.
21
Turn left onto Congress Avenue
357 ft·17 sec·Congress Avenue
22
Turn left onto East 5th Street
28 ft·0 sec·East 5th Street
Use the left lane.
23
Arrive at destination
East 5th Street
Trip Plan
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 117.3 miles from Caddo Mills, TX, or about 2h 8m into the drive.
The longest continuous stretch on this route runs about 89.9 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 52 miles or 1h 1m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 117.3 miles or 2h 8m 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 Austin, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Caddo Mills, TX 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 Caddo Mills, TX
This is one driving day of about 234.6 miles and 4h 13m.
Your first comfortable stop window is around 52 miles from Caddo Mills, TX.
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 South R L Thornton Freeway for about 89.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 117.3 mi from Caddo Mills, TX
· 2h 8m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Waco Mammoth National Monument
National Monument
Standing as tall as 14 feet and weighing 20,000 pounds, Columbian mammoths roamed across what is present-day Texas thousands of years ago. Today, the fossil specimens represent the nation's first and...
4 mi from route
~10 min detour
Free
near mile 129.4
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$35.45 one way
$70.90 round trip
$3.84/gal25.4 MPG avg82 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$38.80
$77.60
premium
$4.54
$41.89
$83.77
diesel
$5.61
$51.80
$103.59
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$35
Meals
$25–$50
Total
$60–$85
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 82.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $25 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
70.4
0
$24.63
$11.26
Efficient EV
58.7
0
$20.53
$9.38
EV Truck/SUV
93.8
1
$32.84
$15.01
Gas CO2
82 kg
EV CO2
27 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 Apr 17, 2026
Origin
Caddo Mills, TX
Evening
in Caddo Mills on Friday
Local time
7:52 PM
CDT
Current temp
58°F
Unavailable
Live forecast
Destination
Austin, TX
Evening
in Austin on Friday
Local time
7:52 PM
CDT
Current temp
70°F
Partly Cloudy
SSE 5 to 10 mph0% chanceLive 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
12 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 13m 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.
Frequently Asked Questions
The drive from Caddo Mills, TX to Austin, TX covers 234.6 miles and takes about 4h 13m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are South R L Thornton Freeway, I 35, Purple Heart 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 117.3 miles from Caddo Mills, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $35.45 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 17 significant decision points across 234.6 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.
The main spots that need attention: at 39.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 40.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 40.7 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Between Caddo Mills, TX and Austin, TX, road signs point toward Waco, Denton and Dallas Zoo.
Yes. Nearby national parks include Waco Mammoth National Monument.
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.
