How far is San Antonio, TX from Onion Creek, TX?
The driving distance from San Antonio, TX to Onion Creek, TX is about 70.2 miles (113 km), with a travel time of about 01h 24m by car.
- The straight-line flight distance is about 65.1 miles (104.7 km).
- For a round trip, plan for roughly 02h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 24m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 third most populous city in Comal County, Texas.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Clear
Driving Route Map
The map below follows the saved road route between San Antonio and Onion Creek.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Onion Creek.
-
1
Start on Dolorosa Street
44 m · 5 sec · Dolorosa Street
-
2
Continue on West Market Street
1893 ft · 42 sec · West Market Street
-
3
Continue on East Market Street
2143 ft · 46 sec · East Market Street
-
4
Turn left
111 m · 13 sec
-
5
Turn straight onto East Commerce Street
66 m · 13 sec · East Commerce Street
-
6
Take the ramp sharp left toward US 281 North, I 37 North
1159 ft · 28 sec
-
7
Merge slight left onto William J Bordelon Freeway
1.3 km · 56 sec · William J Bordelon Freeway
-
8
Take the exit slight right toward I 35 North: Austin
2907 ft · 1 min
-
9
Merge slight left onto North Pan Am Expressway
8.2 mi · 10 min · North Pan Am Expressway
-
10
Keep slight left to continue on North Pan Am Expressway
7.4 mi · 8 min · North Pan Am Expressway
-
11
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
-
12
Continue on Interstate Highway 35
1.9 mi · 2 min · Interstate Highway 35
-
13
Continue on Purple Heart Trail
35.2 mi · 38 min · Purple Heart Trail
-
14
Take the exit slight right toward Onion Creek Parkway
2815 ft · 1 min
-
15
Turn straight onto South Interstate 35
1.2 mi · 2 min · South Interstate 35
-
16
Turn right onto Onion Creek Parkway
1135 ft · 33 sec · Onion Creek Parkway
-
17
Turn right onto Pinehurst Drive
1.1 mi · 4 min · Pinehurst Drive
-
18
Arrive at your destination
0 m · 1 sec · Pinehurst Drive
Car Route Details
A richer read on the saved driving route between San Antonio and Onion Creek.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Purple Heart Trail
Continue on Purple Heart Trail
35.2 mi · 00h 38m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving San Antonio and Mostly Clear near Onion Creek.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Onion Creek?
The road trip is about 70.2 miles (113 km) and usually takes 01h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
New Braunfels is a useful midpoint, sitting about 35.2 miles from San Antonio and 35.1 miles from Onion Creek.
How much longer is the road route than the straight-line distance?
The direct path is about 65.1 miles (104.7 km), while the road route adds roughly 5.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 3:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.37 one way or $18.74 round trip. Estimated CO2 is about 22 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around San Antonio and Mostly Clear near Onion Creek.
Stop Ideas Near New Braunfels
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
New Braunfels Parks and Recreation
City of Cibolo Municipal Building
Comal County Courthouse(Gerichtsgebäude)
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to New Braunfels.
San Marcos Station
San Antonio Station
Austin
Taylor
Flight Path Map
This map shows the direct air route between San Antonio and Onion Creek. Straight-line distance: 65.06 mi (104.71 km).
#1 San Antonio
The seventh most populous city in the United States and the center of the San Antonio metropolitan area.
| Population | 1,567,118 |
| Coordinates | 29.4241200, -98.4936300 |
| Altitude | 198 |
| Country | United States |
#2 Onion Creek
Census designated place
| Population | 2,116 |
| Coordinates | 30.1366000, -97.7841700 |
| Altitude | 175 |
| Country | United States |
End: Onion Creek (-97.78417, 30.1366)
Estimated Travel Time
Distance: 113 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 20m |
| 40 mph (64.37 km/h) | 01h 45m |
| 50 mph (80.47 km/h) | 01h 24m |
| 60 mph (96.56 km/h) | 01h 10m |
| 70 mph (112.65 km/h) | 01h 00m |
| 80 mph (129 km/h) | 00h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $9.37 | $18.74 |
| Mid-grade | $4.25 | $10.54 | $21.09 |
| Premium | $4.59 | $11.39 | $22.77 |
| Diesel | $3.99 | $9.90 | $19.81 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.