How far is Castle Hills, TX from Houston, TX?
The driving distance from Castle Hills, TX to Houston, TX is about 202.4 miles (325.7 km), with a travel time of about 03h 12m by car.
- The straight-line flight distance is about 190.1 miles (305.9 km).
- For a round trip, plan for roughly 06h 24m 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 12m.
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.
City in Fayette County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Castle Hills and Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Hills and Houston.
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1
Start on South Gardenview Drive
57 m · 8 sec · South Gardenview Drive
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2
Turn right onto Northwest Military Highway
1649 ft · 48 sec · Northwest Military Highway
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3
At the end of the road, turn left onto Northwest Loop 410
85 m · 6 sec · Northwest Loop 410
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4
Take the ramp slight left toward I 410 East
1476 ft · 36 sec
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5
Merge slight left onto Connally Loop
6.6 mi · 8 min · Connally Loop
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6
Take the exit slight right toward I 35 South, I 410 South: San Antonio
1394 ft · 34 sec
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7
Keep slight left to continue on Connally Loop
947 ft · 12 sec · Connally Loop
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8
Merge slight left onto North Pan Am Expressway
2.5 mi · 3 min · North Pan Am Expressway
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9
Keep slight right to continue on Connally Loop
3.3 mi · 4 min · Connally Loop
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10
Take the exit slight right toward I 10, US 90, TX 130: San Antonio, Houston
766 ft · 19 sec
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11
Keep slight left to continue on I 10 East, US 90 East, TX 130 North: Houston, Seguin
1266 ft · 31 sec
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12
Keep slight right
1490 ft · 36 sec
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13
Keep slight left
1530 ft · 37 sec
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14
Keep slight left to continue on I 10 East, US 90 East
1051 ft · 26 sec
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15
Merge slight left onto 90th Infantry Division Highway
21.7 mi · 23 min · 90th Infantry Division Highway
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16
Continue on I 10 East: Houston, Austin, Waco
151.1 mi · 2 hr 34 min
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17
Take the exit slight left toward I 10 Toll: Katy Tollway
1548 ft · 22 sec
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18
Merge slight left onto Katy Tollway
3.2 mi · 4 min · Katy Tollway
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19
Take the exit slight right
1092 ft · 15 sec
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20
Merge slight right onto Katy Freeway
10.7 mi · 13 min · Katy Freeway
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21
Take the exit slight right toward Downtown, Theatre District
2064 ft · 52 sec
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22
Continue on Smith Street
704 ft · 29 sec · Smith Street
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23
Turn left onto Preston Street
101 m · 17 sec · Preston Street
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24
Turn left onto Louisiana Street
55 m · 5 sec · Louisiana Street
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25
Arrive at your destination
0 m · 1 sec · Louisiana Street
Car Route Details
A richer read on the saved driving route between Castle Hills and Houston.
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 10 East
Continue on I 10 East: Houston, Austin, Waco
151 mi · 02h 34m
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.
Partly Sunny leaving Castle Hills and Partly Sunny near Houston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Hills to Houston?
The road trip is about 202.4 miles (325.7 km) and usually takes 03h 12m 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?
Schulenburg is a useful midpoint, sitting about 101.1 miles from Castle Hills and 101.3 miles from Houston.
How much longer is the road route than the straight-line distance?
The direct path is about 190.1 miles (305.9 km), while the road route adds roughly 12.3 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 10:36 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.98 one way or $53.96 round trip. Estimated CO2 is about 63.5 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Castle Hills and Partly Sunny near Houston.
Stop Ideas Near Schulenburg
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 Schulenburg.
Prairie View, TX
San Marcos Station
Austin
Taylor
Flight Path Map
This map shows the direct air route between Castle Hills and Houston. Straight-line distance: 190.06 mi (305.88 km).
#1 Castle Hills
City in Bexar County, Texas, United States
| Population | 4,448 |
| Coordinates | 29.5232900, -98.5164100 |
| Altitude | 256 |
| Country | United States |
#2 Houston
The fourth most populous city in the United States and the center of the Houston metropolitan area.
| Population | 2,316,120 |
| Coordinates | 29.7632800, -95.3632700 |
| Altitude | 12 |
| Country | United States |
End: Louisiana Street (-95.363596, 29.76347)
Estimated Travel Time
Distance: 326 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 44m |
| 40 mph (64.37 km/h) | 05h 03m |
| 50 mph (80.47 km/h) | 04h 02m |
| 60 mph (96.56 km/h) | 03h 22m |
| 70 mph (112.65 km/h) | 02h 53m |
| 80 mph (129 km/h) | 02h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $26.98 | $53.96 |
| Mid-grade | $4.25 | $30.36 | $60.72 |
| Premium | $4.59 | $32.78 | $65.56 |
| Diesel | $3.99 | $28.51 | $57.02 |
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 Texas · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.