How far is Junction, TX from San Antonio, TX?
The driving distance from Junction, TX to San Antonio, TX is about 114.3 miles (184 km), with a travel time of about 01h 47m by car.
- The straight-line flight distance is about 106.2 miles (170.9 km).
- For a round trip, plan for roughly 03h 35m 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 47m.
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.
City in Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Junction and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Junction and San Antonio.
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1
Start on North 11th Street
9 m · 9 sec · North 11th Street
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2
Turn left onto Main Street
3084 ft · 1 min · Main Street
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3
Continue on South Loop 481
2.7 mi · 4 min · South Loop 481
-
4
Take the ramp straight toward I 10 East: San Antonio
1092 ft · 27 sec
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5
Merge slight left
89.9 mi · 1 hr 28 min
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6
Keep slight right
17.4 mi · 20 min
-
7
Keep slight right to continue on McDermott Freeway
1.7 mi · 2 min · McDermott Freeway
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8
Take the exit slight right toward Santa Rosa Street, Downtown
2505 ft · 1 min
-
9
Turn straight onto North Pecos-La Trinidad
804 ft · 16 sec · North Pecos-La Trinidad
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10
Keep slight right to continue on North Pecos-La Trinidad
2963 ft · 1 min · North Pecos-La Trinidad
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11
Turn left onto Dolorosa Street
2582 ft · 56 sec · Dolorosa Street
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12
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Junction 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.
I 10 East
Merge slight left
89.9 mi · 01h 28m
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 Cloudy leaving Junction 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 Junction to San Antonio?
The road trip is about 114.3 miles (184 km) and usually takes 01h 47m 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?
Kerrville is a useful midpoint, sitting about 57.1 miles from Junction and 57.2 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 106.2 miles (170.9 km), while the road route adds roughly 8.1 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 2:54 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.23 one way or $30.46 round trip. Estimated CO2 is about 35.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Junction and Mostly Cloudy near San Antonio.
Stop Ideas Near Kerrville
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 Kerrville.
San Antonio Station
San Marcos Station
Flight Path Map
This map shows the direct air route between Junction and San Antonio. Straight-line distance: 106.17 mi (170.87 km).
#1 Junction
City in Texas, United States
| Population | 2,434 |
| Coordinates | 30.4893600, -99.7720100 |
| Altitude | 519 |
| 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: 184 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 48m |
| 40 mph (64.37 km/h) | 02h 51m |
| 50 mph (80.47 km/h) | 02h 17m |
| 60 mph (96.56 km/h) | 01h 54m |
| 70 mph (112.65 km/h) | 01h 37m |
| 80 mph (129 km/h) | 01h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $15.23 | $30.46 |
| Mid-grade | $4.25 | $17.14 | $34.27 |
| Premium | $4.59 | $18.50 | $37.00 |
| Diesel | $3.99 | $16.09 | $32.18 |
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.