How far is San Antonio, TX from Brownsville, TX?
The driving distance from San Antonio, TX to Brownsville, TX is about 277.1 miles (446 km), with a travel time of about 04h 08m by car.
- The straight-line flight distance is about 250.9 miles (403.8 km).
- For a round trip, plan for roughly 08h 16m 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 08m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Nueces County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between San Antonio and Brownsville.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Brownsville.
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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
125.1 mi · 2 hr 7 min · Lucian Adams Freeway
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8
Take the exit slight right toward I 69E, US 77: Kingsville, Brownsville
31.3 mi · 34 min
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9
Keep slight left to continue on U.S. Highway 77
61.3 mi · 1 hr 9 min · U.S. Highway 77
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10
Keep slight left to continue on U.S. Highway 77
43.7 mi · 47 min · U.S. Highway 77
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11
Continue on North Expressway
2.1 mi · 2 min · North Expressway
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12
Keep slight left to continue on North Expressway
9 mi · 10 min · North Expressway
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13
Take the exit slight right toward 12th-14th Street
1730 ft · 42 sec
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14
Turn straight onto South Expressway
101 m · 9 sec · South Expressway
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15
Turn right onto East 12th Street
1.2 km · 2 min · East 12th Street
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16
Turn right onto East Washington Street
9 m · 1 sec · East Washington Street
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17
Arrive at your destination
0 m · 1 sec · East Washington Street
Car Route Details
A richer read on the saved driving route between San Antonio and Brownsville.
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
125 mi · 02h 07m
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.
Slight Chance Rain Showers leaving San Antonio and Showers And Thunderstorms Likely near Brownsville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Brownsville?
The road trip is about 277.1 miles (446 km) and usually takes 04h 08m 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?
Robstown is a useful midpoint, sitting about 138.5 miles from San Antonio and 138.7 miles from Brownsville.
How much longer is the road route than the straight-line distance?
The direct path is about 250.9 miles (403.8 km), while the road route adds roughly 26.2 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 8:44 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.96 one way or $73.92 round trip. Estimated CO2 is about 86.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around San Antonio and Showers And Thunderstorms Likely near Brownsville.
Flight Path Map
This map shows the direct air route between San Antonio and Brownsville. Straight-line distance: 250.88 mi (403.76 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 Brownsville
The southernmost city in Texas.
| Population | 183,428 |
| Coordinates | 25.9017500, -97.4974800 |
| Altitude | 10 |
| Country | United States |
End: East Washington Street (-97.4975, 25.901733)
Estimated Travel Time
Distance: 446 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 14m |
| 40 mph (64.37 km/h) | 06h 55m |
| 50 mph (80.47 km/h) | 05h 32m |
| 60 mph (96.56 km/h) | 04h 37m |
| 70 mph (112.65 km/h) | 03h 57m |
| 80 mph (129 km/h) | 03h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $36.96 | $73.92 |
| Mid-grade | $4.25 | $41.58 | $83.17 |
| Premium | $4.59 | $44.90 | $89.80 |
| Diesel | $3.99 | $39.05 | $78.10 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.