How far is San Antonio, TX from Magnolia, TX?
The driving distance from San Antonio, TX to Magnolia, TX is about 200.6 miles (322.8 km), with a travel time of about 03h 39m by car.
- The straight-line flight distance is about 173.1 miles (278.6 km).
- For a round trip, plan for roughly 07h 18m 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 39m.
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.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between San Antonio and Magnolia.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Magnolia.
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1
Start on Dolorosa Street
44 m · 5 sec · Dolorosa Street
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2
Continue on West Market Street
1893 ft · 42 sec · West Market Street
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3
Continue on East Market Street
2143 ft · 46 sec · East Market Street
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4
Turn left
111 m · 13 sec
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5
Turn straight onto East Commerce Street
1.2 km · 1 min · East Commerce Street
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6
Keep slight left to continue on East Commerce Street
2.7 mi · 4 min · East Commerce Street
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7
Turn slight right onto East Houston Street
1349 ft · 31 sec · East Houston Street
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8
Turn left onto Interstate 10 East
583 ft · 12 sec · Interstate 10 East
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9
Take the ramp slight left toward I 10 East, US 90 East
874 ft · 21 sec
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10
Merge slight left onto Jose Lopez Freeway
1.8 mi · 2 min · Jose Lopez Freeway
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11
Continue on 90th Infantry Division Highway
22.2 mi · 23 min · 90th Infantry Division Highway
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12
Continue on I 10 East: Houston, Austin, Waco
139.6 mi · 2 hr 21 min
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13
Take the exit slight right toward TX 99 Toll North, TX 99 South: Grand Parkway
2346 ft · 45 sec
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14
Keep slight left to continue on TX 99 Toll North: Grand Parkway
1 km · 1 min
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15
Keep slight left to continue on TX 99 Toll North
854 ft · 21 sec
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16
Merge slight left onto West Grand Parkway North
19 mi · 21 min · West Grand Parkway North
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17
Take the exit slight right toward Mueschke Road
1685 ft · 43 sec
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18
Turn left onto Mueschke Road
2.9 mi · 5 min · Mueschke Road
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19
Continue on Grand Pines Drive
2.9 mi · 5 min · Grand Pines Drive
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20
Continue on Nichols Sawmill Road
5.6 mi · 10 min · Nichols Sawmill Road
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21
At the end of the road, turn left onto Farm to Market Road 1774
821 ft · 16 sec · Farm to Market Road 1774
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22
Arrive at your destination
1 m · 1 sec · Farm to Market Road 1774
Car Route Details
A richer read on the saved driving route between San Antonio and Magnolia.
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
140 mi · 02h 21m
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.
Mostly Sunny leaving San Antonio and Mostly Sunny near Magnolia.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Magnolia?
The road trip is about 200.6 miles (322.8 km) and usually takes 03h 39m 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 100.2 miles from San Antonio and 100.4 miles from Magnolia.
How much longer is the road route than the straight-line distance?
The direct path is about 173.1 miles (278.6 km), while the road route adds roughly 27.5 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 9:42 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.76 one way or $53.51 round trip. Estimated CO2 is about 62.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around San Antonio and Mostly Sunny near Magnolia.
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 San Antonio and Magnolia. Straight-line distance: 173.14 mi (278.64 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 Magnolia
City in southwestern Montgomery County, Texas, United States
| Population | 2,224 |
| Coordinates | 30.2093800, -95.7507800 |
| Altitude | 82 |
| Country | United States |
End: Magnolia (-95.75078, 30.20938)
Estimated Travel Time
Distance: 323 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 41m |
| 40 mph (64.37 km/h) | 05h 00m |
| 50 mph (80.47 km/h) | 04h 00m |
| 60 mph (96.56 km/h) | 03h 20m |
| 70 mph (112.65 km/h) | 02h 51m |
| 80 mph (129 km/h) | 02h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $26.76 | $53.51 |
| Mid-grade | $4.25 | $30.10 | $60.21 |
| Premium | $4.59 | $32.50 | $65.01 |
| Diesel | $3.99 | $28.27 | $56.54 |
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 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.