How far is San Antonio, TX from San Juan, TX?
The driving distance from San Antonio, TX to San Juan, TX is about 236.7 miles (380.9 km), with a travel time of about 04h 15m by car.
- The straight-line flight distance is about 224.4 miles (361.2 km).
- For a round trip, plan for roughly 08h 30m 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 04h 15m.
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.
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 San Juan.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and San Juan.
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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 · 41 sec · East Market Street
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4
Turn right onto Tower of the Americas Way
957 ft · 21 sec · Tower of the Americas Way
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5
Take the ramp slight left toward I 37 South, US 281 South
1374 ft · 34 sec
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6
Merge slight left onto William J Bordelon Freeway
1.4 mi · 2 min · William J Bordelon Freeway
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7
Continue on Lucian Adams Freeway
66.8 mi · 1 hr 8 min · Lucian Adams Freeway
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8
Take the exit slight right toward US 281 South
15.2 mi · 19 min
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9
Keep slight left to continue on South Nueces Street
66.2 mi · 1 hr 10 min · South Nueces Street
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10
Keep slight left
9.5 mi · 10 min
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11
Keep slight left to continue on Falfurrias Expressway
55.8 mi · 59 min · Falfurrias Expressway
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12
Keep slight left
18.4 mi · 20 min
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13
Merge slight left
2577 ft · 34 sec
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14
Continue straight
2159 ft · 28 sec
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15
Take the exit slight right
1155 ft · 28 sec
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16
Turn straight onto West Expressway 83
1206 ft · 27 sec · West Expressway 83
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17
Turn right onto North Nebraska Avenue
1 km · 1 min · North Nebraska Avenue
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18
Turn left
55 m · 5 sec
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19
Turn right
47 m · 13 sec
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20
Turn right
54 m · 13 sec
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21
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between San Antonio and San Juan.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Lucian Adams Freeway
Continue on Lucian Adams Freeway
66.8 mi · 01h 08m
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 San Juan.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to San Juan?
The road trip is about 236.7 miles (380.9 km) and usually takes 04h 15m 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?
Alice is a useful midpoint, sitting about 118.7 miles from San Antonio and 118 miles from San Juan.
How much longer is the road route than the straight-line distance?
The direct path is about 224.4 miles (361.2 km), while the road route adds roughly 12.3 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 8:30 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.55 one way or $63.11 round trip. Estimated CO2 is about 74.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around San Antonio and Mostly Sunny near San Juan.
Flight Path Map
This map shows the direct air route between San Antonio and San Juan. Straight-line distance: 224.46 mi (361.24 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 San Juan
In Hidalgo County, Texas, San Juan is a city.
| Population | 37,034 |
| Coordinates | 26.1892400, -98.1552900 |
| Altitude | 33 |
| Country | United States |
End: San Juan (-98.15529, 26.18924)
Estimated Travel Time
Distance: 381 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 53m |
| 40 mph (64.37 km/h) | 05h 55m |
| 50 mph (80.47 km/h) | 04h 44m |
| 60 mph (96.56 km/h) | 03h 56m |
| 70 mph (112.65 km/h) | 03h 22m |
| 80 mph (129 km/h) | 02h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $31.55 | $63.11 |
| Mid-grade | $4.25 | $35.50 | $71.01 |
| Premium | $4.59 | $38.33 | $76.67 |
| Diesel | $3.99 | $33.34 | $66.68 |
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.