Origin
Austin, TX
Afternoon in Austin on Thursday
Local time
1:48 PM
CDT
Current temp
63°F
Unavailable
Live forecast
Trip from Austin, TX to Castle Hills, TX
Last recalculated Apr 16, 2026
Drive Time
1h 25m
Distance
76 mi
122 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$11
one way
EV Charging
Unknown
Best Time to Leave
4 AM
1h 19m
★
6 AM
1h 26m
8 AM
1h 39m
10 AM
1h 30m
12 PM
1h 29m
3 PM
1h 31m
5 PM
1h 38m
8 PM
1h 22m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Austin, TX
Wikimedia Commons
Castle Hills, TX
Jeff Stapleton
Trip Overview
The drive from Austin, TX to Castle Hills, TX covers 76 miles and takes about 1h 25m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Interstate 35, I 35 South, Purple Heart Trail for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $11.48 one way before food or hotel costs.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 25m. Total distance: 76 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 25m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (0%). Straightforward navigation.
Scenic Drive
Turn-heavy local drive route profile.
Drive Character
Expect a 1h 25m drive with frequent turns across 76 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 14 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Interstate 35 is one of the defining roads on this drive.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple - set it and forget it for most of the drive.
Driving Effort
1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Austin, TX to Castle Hills, TX is easy. At 1h 25m with 0% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
This route does not have any notably tricky sections. Most of the drive from Austin, TX to Castle Hills, TX is straightforward, with well-signed roads and simple exits.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Interstate 35 | — | — |
| I 35 South | — | — |
| Purple Heart Trail | — | — |
| Highway 35 | — | — |
| North Pan Am Expressway | — | — |
| I 410 West | — | — |
| Connally Loop | — | — |
| Honeysuckle Lane | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
Interstate 35
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Austin, TX and Castle Hills, TX.
1
Start on East 5th Street
0.5 mi
·
1 min
·
East 5th Street
2
At the end of the road, turn right onto North Interstate 35
0.4 mi
·
40 sec
·
North Interstate 35
3
Take the ramp slight left toward I 35 South
0.2 mi
·
22 sec
·
I 35 South
4
Merge slight left onto Purple Heart Trail
46 mi
·
50 min
·
Purple Heart Trail
5
Continue on Interstate Highway 35
1.7 mi
·
1 min
·
Interstate Highway 35
6
Continue on Purple Heart Trail
12 mi
·
12 min
·
Purple Heart Trail
7
Continue on North Pan Am Expressway
6.9 mi
·
7 min
·
North Pan Am Expressway
8
Take the exit slight right toward I 410 West, Loop 368 South
0.4 mi
·
56 sec
·
I 410 West, Loop 368 South
9
Keep slight left to continue on I 410 West
0.3 mi
·
33 sec
·
I 410 West
10
Merge slight left onto Connally Loop
6.9 mi
·
7 min
·
Connally Loop
11
Take the exit slight right toward Honeysuckle Lane, Frontage Road
0.2 mi
·
21 sec
·
Honeysuckle Lane, Frontage Road
12
Turn right onto Roleto Drive
0.1 mi
·
28 sec
·
Roleto Drive
13
Turn right onto South Gardenview Drive
0.1 mi
·
31 sec
·
South Gardenview Drive
14
Arrive at your destination
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 38 mi from Austin, TX · 42m into the drive
Mid-route town
Meal stop
38 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 17 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 38 miles from Austin, TX, which is a good place for a longer meal and fuel stop.
Arriving in Castle Hills, TX
The final approach into Castle Hills, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$11.48 one way
$22.97 round trip
$3.84/gal
25.4 MPG avg
27 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $12.57 | $25.14 |
| premium | $4.54 | $13.57 | $27.14 |
| diesel | $5.61 | $16.78 | $33.56 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$11
Estimated CO2 emission: 26.6 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $8 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 22.8 | 0 | $7.98 | $3.65 |
| Efficient EV | 19 | 0 | $6.65 | $3.04 |
| EV Truck/SUV | 30.4 | 0 | $10.64 | $4.86 |
Gas CO2
27 kg
EV CO2
9 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.
Destination
Castle Hills, TX
Afternoon in Castle Hills on Thursday
Local time
1:48 PM
CDT
Current temp
74°F
Unavailable
Live forecast
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
11 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
1h 25m 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 Austin, TX to Castle Hills, TX covers 76 miles and takes about 1h 25m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Interstate 35, I 35 South, Purple Heart Trail. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 38 miles from Austin, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $11.48 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.
The drive from Austin, TX to Castle Hills, TX is easy. At 1h 25m with 0% highway, most drivers will find it relaxed and low-stress.
This route does not have any notably tricky sections. Most of the drive from Austin, TX to Castle Hills, TX is straightforward, with well-signed roads and simple exits.
The route from Austin, TX to Castle Hills, TX does not surface many named destination signs beyond the main corridor.
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