How far is Marion, TX from San Antonio, TX?
The driving distance from Marion, TX to San Antonio, TX is about 30.5 miles (49.1 km), with a travel time of about 00h 35m by car.
- The straight-line flight distance is about 23.5 miles (37.9 km).
- For a round trip, plan for roughly 01h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 35m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Marion and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marion and San Antonio.
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1
Start on South Center Street
2771 ft · 55 sec · South Center Street
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2
Continue on Farm-to-Market Road 465
3 mi · 5 min · Farm-to-Market Road 465
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3
Turn slight right
837 ft · 39 sec
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4
At the end of the road, turn right onto West Interstate 10
37 m · 4 sec · West Interstate 10
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5
Take the ramp slight left
150 m · 12 sec
-
6
Merge slight left
5 mi · 5 min
-
7
Keep slight left
12 mi · 13 min
-
8
Keep slight left to continue on 90th Infantry Division Highway
1.2 km · 52 sec · 90th Infantry Division Highway
-
9
Continue on Jose Lopez Freeway
1.6 mi · 2 min · Jose Lopez Freeway
-
10
Take the exit slight right toward Commerce Street, Houston Street
790 ft · 19 sec
-
11
Turn straight onto Interstate 10 East
1830 ft · 39 sec · Interstate 10 East
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12
Turn right onto East Houston Street
963 ft · 20 sec · East Houston Street
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13
Turn slight left onto East Commerce Street
4.3 mi · 7 min · East Commerce Street
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14
Turn left onto Military Plaza
119 m · 16 sec · Military Plaza
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15
Turn left onto Dolorosa Street
100 m · 8 sec · Dolorosa Street
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16
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Marion and San Antonio.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
West Interstate 10
Keep slight left
12 mi · 00h 13m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Chance Showers And Thunderstorms leaving Marion and Mostly Cloudy near San Antonio.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marion to San Antonio?
The road trip is about 30.5 miles (49.1 km) and usually takes 00h 35m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Converse is a useful midpoint, sitting about 14.1 miles from Marion and 16.4 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 23.5 miles (37.9 km), while the road route adds roughly 7 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:20 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.08 one way or $8.16 round trip. Estimated CO2 is about 9.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Marion and Mostly Cloudy near San Antonio.
Stop Ideas Near Converse
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Piazza Italia Park
Schertz EMS
Converse City Hall
Municipal Plaza
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Converse.
San Antonio Station
San Marcos Station
Austin
Flight Path Map
This map shows the direct air route between Marion and San Antonio. Straight-line distance: 23.56 mi (37.91 km).
#1 Marion
Marion is a city in the US state of Texas, situated in Guadalupe County .
| Population | 1,281 |
| Coordinates | 29.5713400, -98.1402900 |
| Altitude | 197 |
| Country | United States |
#2 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 |
End: Dolorosa Street (-98.493645, 29.424163)
Estimated Travel Time
Distance: 49 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 01m |
| 40 mph (64.37 km/h) | 00h 45m |
| 50 mph (80.47 km/h) | 00h 36m |
| 60 mph (96.56 km/h) | 00h 30m |
| 70 mph (112.65 km/h) | 00h 26m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $4.08 | $8.16 |
| Mid-grade | $4.25 | $4.59 | $9.18 |
| Premium | $4.59 | $4.96 | $9.92 |
| Diesel | $3.99 | $4.31 | $8.62 |
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 06, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.