Origin
San Antonio, TX
Afternoon in San Antonio on Sunday
Local time
2:29 PM
CDT
Current temp
81°F
Unavailable
Live forecast
Trip from San Antonio, TX to Brownsville, TX
Drive Time
4h 55m
Distance
276.3 mi
445 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$42
one way
San Antonio, TX
Wikimedia Commons
Brownsville, TX
Eddie O.
Trip Overview
Traveling from San Antonio to Brownsville covers 277.1 miles of South Texas terrain, typically requiring about 4 hours and 8 minutes of drive time. Because the route is categorized as a turn-heavy local drive rather than a high-speed interstate haul, you should plan for a full day of travel. Budget roughly $41 for fuel to complete the trip, which stays entirely within the Great Plains region. While it is possible to finish the journey in a single day, the winding nature of the roads means you should prepare for steady engagement behind the wheel. Use this route if you prefer local roads over monotonous highway cruising and want to experience the landscape at a more deliberate pace.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
138.2 miles from San Antonio, TX
A natural place for your longest stop of the day , about 2h 21m into the drive .
Drive Character
Expect a unique driving experience that favors local navigation over high-speed interstate travel. With a highway share of 0%, you will spend your time navigating through West Market Street, East Market Street, and Tower of the Americas Way. The route is defined by its turn-heavy profile, meaning you won't encounter long, straight stretches of road; in fact, the longest uninterrupted segment is 0 miles on West Market Street. This technical, local-focused drive demands your full attention as you transition away from San Antonio. It is a departure from the typical cross-country highway grind, offering a more hands-on experience for those who prefer navigating local corridors.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 17 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Lucian Adams Freeway is the longest continuous segment at about 125.1 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Lucian Adams Freeway and U.S. Highway 77. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.8 miles in near Tower of the Americas Way.
Route Complexity
7/10
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 10 significant decision points across 276.3 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.8 miles (Tower of the Americas Way): Lane positioning matters here; at 127.7 miles (I 69E; US 77): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 220.4 miles (I 69E; US 77 / U.S. Highway 77): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 10 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0.8 mi into trip
|
~1m in
|
Tower of the Americas Way
Turn right onto Tower of the Americas Way
Lane positioning matters here
Use the right lane.
7
127.7 mi into trip
|
~2h 10m in
|
I 69E; US 77
Take the exit onto I 69E; US 77 toward I 69E, US 77: Kingsville, Brownsville
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 69E, US 77: Kingsville, Brownsville
6
220.4 mi into trip
|
~3h 53m in
|
I 69E; US 77 / U.S. Highway 77
Keep slight left at fork onto I 69E; US 77 / U.S. Highway 77
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
266.2 mi into trip
|
~4h 42m in
|
I 69E; US 77; US 83 / North Expressway
Keep slight left at fork onto I 69E; US 77; US 83 / North Expressway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
275.2 mi into trip
|
~4h 53m in
Take the exit toward 12th-14th Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 1B
Toward 12th-14th Street
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Lucian Adams Freeway | 125.1 mi | 2h 6m |
| U.S. Highway 77 | 105 mi | 1h 56m |
| I 69E | 31.3 mi | 33m |
| North Expressway | 11.1 mi | 12m |
| William J Bordelon Freeway | 1.4 mi | 1m |
| East 12th Street | 0.7 mi | 1m |
| East Market Street | 0.4 mi | <1m |
| West Market Street | 0.4 mi | <1m |
Longest stretch:
Lucian Adams Freeway
— 125.1 mi, about 2h 6m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio, TX and Brownsville, TX.
1
Start on Dolorosa Street
143 ft
·
4 sec
·
Dolorosa Street
2
Continue on West Market Street
0.4 mi
·
42 sec
·
West Market Street
3
Continue on East Market Street
0.4 mi
·
40 sec
·
East Market Street
4
Turn right onto Tower of the Americas Way
0.2 mi
·
21 sec
·
Tower of the Americas Way
Use the right lane.
5
Take the ramp
0.3 mi
·
33 sec
Toward I 37 South, US 281 South
6
Merge onto I 37; US 281
1.4 mi
·
1 min
·
William J Bordelon Freeway
7
Continue on I 37; US 281
125 mi
·
2 hr 6 min
·
Lucian Adams Freeway
Use the straight / slight right lanes.
8
Take the exit onto I 69E; US 77
31 mi
·
33 min
·
I 69E; US 77
Toward I 69E, US 77: Kingsville, Brownsville
Use the straight / slight right lanes.
9
Keep slight left at fork onto US 77
61 mi
·
1 hr 9 min
·
U.S. Highway 77
10
Keep slight left at fork onto I 69E; US 77
44 mi
·
46 min
·
U.S. Highway 77
Use the straight / slight right lanes.
11
Continue on I 69E; US 77; US 83
2.1 mi
·
2 min
·
North Expressway
12
Keep slight left at fork onto I 69E; US 77; US 83
9.0 mi
·
10 min
·
North Expressway
Use the straight / slight right lanes.
13
Take the exit
0.3 mi
·
42 sec
Exit 1B
Toward 12th-14th Street
Use the slight right lane.
14
Turn straight onto South Expressway
331 ft
·
8 sec
·
South Expressway
15
Turn right onto East 12th Street
0.7 mi
·
1 min
·
East 12th Street
Use the right lane.
16
Turn right onto US 77 Business
29 ft
·
0 sec
·
East Washington Street
17
Arrive at destination
US 77 Business
Trip Plan
Given the turn-heavy nature of this 277.1-mile journey, try to depart early in the morning to ensure you have plenty of daylight for navigating local turns. You should plan for at least one dedicated stop along the way to break up the four-hour drive and stretch your legs. Keep your navigation system ready, as the lack of highway miles means you will be making frequent turns rather than staying on one main artery. Since you are looking at a $41 fuel cost, filling your tank before leaving San Antonio is a smart move to avoid searching for stations on unfamiliar local roads. Flexibility is your best asset here, so don't rush the process and enjoy the slower pace of this regional transit.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 138.2 miles from San Antonio, TX, or about 2h 21m into the drive.
The longest continuous stretch on this route runs about 125.1 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 80 miles or 1h 22m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 138.2 miles or 2h 21m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h
Traffic, exits, and arrival timing usually matter more near Brownsville, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving San Antonio, TX so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from San Antonio, TX
This is one driving day of about 276.3 miles and 4h 55m.
Your first comfortable stop window is around 80 miles from San Antonio, TX.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Lucian Adams Freeway for about 125.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 138.2 mi from San Antonio, TX · 2h 21m into the drive
Mid-route town
Meal stop
138 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 80 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 138.2 miles from San Antonio, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Lucian Adams Freeway if your tank is already low. That segment runs about 125.1 miles.
Arriving in Brownsville, TX
The final approach into Brownsville, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Brownsville, TX.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$42.21 one way
$84.41 round trip
$3.88/gal
25.4 MPG avg
97 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $46.25 | $92.51 |
| premium | $4.59 | $49.94 | $99.88 |
| diesel | $5.64 | $61.38 | $122.77 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$42
Meals
$25–$50
Total
$67–$92
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 96.7 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $29 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 82.9 | 1 | $29.01 | $13.26 |
| Efficient EV | 69.1 | 0 | $24.18 | $11.05 |
| EV Truck/SUV | 110.5 | 1 | $38.68 | $17.68 |
Gas CO2
97 kg
EV CO2
32 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Brownsville, TX
Afternoon in Brownsville on Sunday
Local time
2:29 PM
CDT
Current temp
79°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
2 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 55m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from San Antonio, TX to Brownsville, TX covers 276.3 miles and takes about 4h 55m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Lucian Adams Freeway, U.S. Highway 77, I 69E. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 138.2 miles from San Antonio, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $42.21 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 10 significant decision points across 276.3 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 0.8 miles (Tower of the Americas Way): Lane positioning matters here; at 127.7 miles (I 69E; US 77): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 220.4 miles (I 69E; US 77 / U.S. Highway 77): Highway fork - watch signs carefully. Lane positioning matters here.
The route from San Antonio, TX to Brownsville, TX does not surface many named destination signs beyond the main corridor.
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