How far is Mason, TX from San Antonio, TX?
The driving distance from Mason, TX to San Antonio, TX is about 112 miles (180.2 km), with a travel time of about 01h 52m by car.
- The straight-line flight distance is about 101.6 miles (163.5 km).
- For a round trip, plan for roughly 03h 45m 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 52m.
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.
Sense of physical or psychological ease; state of being comfortable and free from stress
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Mason and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mason and San Antonio.
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1
Start on Austin Street
148 m · 9 sec · Austin Street
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2
Turn right onto Postoak Street
753 ft · 37 sec · Postoak Street
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3
Turn left onto San Antonio Street
1.5 km · 1 min · San Antonio Street
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4
Continue on South US Highway 87
39.7 mi · 44 min · South US Highway 87
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5
At the end of the road, turn left onto West Main Street
1.5 mi · 4 min · West Main Street
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6
Turn right onto South Washington Street
1.1 mi · 2 min · South Washington Street
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7
Continue on South US Highway 87
20.2 mi · 23 min · South US Highway 87
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8
Take the ramp left toward I 10 East: San Antonio
27.2 mi · 28 min
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9
Keep slight right
17.4 mi · 20 min
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10
Keep slight right to continue on McDermott Freeway
1.7 mi · 2 min · McDermott Freeway
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11
Take the exit slight right toward Santa Rosa Street, Downtown
2505 ft · 1 min
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12
Turn straight onto North Pecos-La Trinidad
804 ft · 16 sec · North Pecos-La Trinidad
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13
Keep slight right to continue on North Pecos-La Trinidad
2963 ft · 1 min · North Pecos-La Trinidad
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14
Turn left onto Dolorosa Street
2582 ft · 56 sec · Dolorosa Street
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15
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Mason and San Antonio.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
South US Highway 87
Continue on South US Highway 87
39.7 mi · 00h 44m
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.
Partly Sunny leaving Mason and Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms near San Antonio.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mason to San Antonio?
The road trip is about 112 miles (180.2 km) and usually takes 01h 52m 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?
Comfort is a useful midpoint, sitting about 55.9 miles from Mason and 56 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 101.6 miles (163.5 km), while the road route adds roughly 10.4 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 2:44 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.93 one way or $29.85 round trip. Estimated CO2 is about 35.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Mason and Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms near San Antonio.
Stop Ideas Near Comfort
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 Comfort.
San Antonio Station
San Marcos Station
Austin
Flight Path Map
This map shows the direct air route between Mason and San Antonio. Straight-line distance: 101.58 mi (163.47 km).
#1 Mason
City in Texas, United States
| Population | 2,347 |
| Coordinates | 30.7487900, -99.2306100 |
| Altitude | 469 |
| 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: 180 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 43m |
| 40 mph (64.37 km/h) | 02h 47m |
| 50 mph (80.47 km/h) | 02h 14m |
| 60 mph (96.56 km/h) | 01h 51m |
| 70 mph (112.65 km/h) | 01h 35m |
| 80 mph (129 km/h) | 01h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $14.93 | $29.85 |
| Mid-grade | $4.25 | $16.80 | $33.59 |
| Premium | $4.59 | $18.13 | $36.27 |
| Diesel | $3.99 | $15.77 | $31.54 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.