Buda to Brownsville is 337 miles and takes about 6h 3m via I 37 and US 77, with a fuel budget near $50 and enough daylight to finish in a day. This route primarily stays within Texas, traversing the Great Plains region on both ends of your trip. Expect a straightforward drive with a high percentage of highway time, making it a convenient option for a single-day excursion. Given the relatively short duration, you'll have flexibility in your departure time and can easily complete this drive before evening.
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
168.5 miles from Buda, TX
A natural place for your longest stop of the day
, about 2h 58m into the drive
.
Main Roads
Road
Distance
Duration
I 37
118.7 mi
1h 59m
U.S. Highway 77
105 mi
1h 56m
Purple Heart Trail
43.7 mi
46m
I 69E
31.3 mi
33m
North Expressway
11.1 mi
12m
Connally Loop
11 mi
12m
North Pan Am Expressway
10 mi
11m
Interstate Highway 35
1.7 mi
1m
Longest stretch:
I 37
— 118.7 mi, about 1h 59m
Traffic on I-37
Hour-of-day weekday pattern from 28 FHWA count stations on your route.
Peak
3 PM
~1,146 veh/hr typical
· worst 1,732
Quietest
2 AM
~151 veh/hr
Peak-to-quiet ratio
7.6×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 51 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Buda, TX and Brownsville, TX.
1
Start on North Main Street
0.8 mi·1 min·North Main Street
2
Turn right onto Cabelas Drive
0.7 mi·1 min·Cabelas Drive
3
Turn right onto South Interstate 35
0.7 mi·1 min·South Interstate 35
4
Take the ramp
0.4 mi·56 sec
Toward I 35 SouthUse the straight / slight left lanes.
5
Merge onto I 35
32 mi·34 min·Purple Heart Trail
Use the straight / slight right lanes.
6
Continue on I 35
1.7 mi·1 min·Interstate Highway 35
Use the straight / slight right lanes.
7
Continue on I 35
12 mi·12 min·Purple Heart Trail
Use the straight / slight right lanes.
8
Continue on I 35
10.0 mi·11 min·North Pan Am Expressway
Use the straight / slight right lanes.
9
Keep slight right at fork onto I 410
11 mi·12 min·Connally Loop
Toward I 410 SouthUse the straight / slight right lanes.
10
Take the exit
0.2 mi·28 sec
Exit 41Toward I 37, US 281 North: San Antonio, Corpus ChristiUse the straight / slight right lanes.
11
Keep slight left at fork
0.5 mi·1 min
Toward I 37 South: Corpus ChristiUse the slight left / slight right lanes.
12
Merge onto I 37
119 mi·1 hr 59 min·I 37
Use the straight / slight right lanes.
13
Take the exit onto I 69E; US 77
31 mi·33 min·I 69E; US 77
Toward I 69E, US 77: Kingsville, BrownsvilleUse the straight / slight right lanes.
14
Keep slight left at fork onto US 77
61 mi·1 hr 9 min·U.S. Highway 77
15
Keep slight left at fork onto I 69E; US 77
44 mi·46 min·U.S. Highway 77
Use the straight / slight right lanes.
16
Continue on I 69E; US 77; US 83
2.1 mi·2 min·North Expressway
17
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.
18
Take the exit
0.3 mi·42 sec
Exit 1BToward 12th-14th StreetUse the slight right lane.
19
Turn straight onto South Expressway
331 ft·8 sec·South Expressway
20
Turn right onto East 12th Street
0.7 mi·1 min·East 12th Street
Use the right lane.
21
Turn right onto US 77 Business
29 ft·0 sec·East Washington Street
22
Arrive at destination
US 77 Business
Trip Plan
For this 6-hour drive, consider an early morning departure from Buda to maximize daylight and allow for a relaxed pace. With only one recommended stop and a manageable distance, you can easily complete this trip in a single day. Keep an eye on your fuel levels, especially as you approach the southern portion of U.S. Highway 77, as services can become more spread out. The $50 fuel estimate is based on the 337 miles, so factor that into your budget. Your flexibility on this route means you can stop for breaks as needed without feeling rushed.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 168.5 miles from Buda, TX, or about 2h 58m into the drive.
The longest continuous stretch on this route runs about 118.7 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 74 miles or 1h 23m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 168.5 miles or 2h 58m 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 57m
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 Buda, 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 Buda, TX
This is one driving day of about 337 miles and 6h 3m.
Your first comfortable stop window is around 74 miles from Buda, 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 I 37 for about 118.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 13
5 decision points cluster between mile 58 and 335.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
58 mi into trip|~1h 5m in|I 410 / Connally Loop
Keep slight right at fork onto I 410 / Connally Loop toward I 410 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 410 South
8
69 mi into trip|~1h 17m in
Take the exit toward I 37, US 281 North: San Antonio, Corpus Christi
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.
Exit 41
Toward I 37, US 281 North: San Antonio, Corpus...
7
69.2 mi into trip|~1h 18m in
Keep slight left at fork toward I 37 South: Corpus Christi
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward I 37 South: Corpus Christi
7
188.4 mi into trip|~3h 18m 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
7
335.9 mi into trip|~6h 1m 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
Fuel & Cost
Regular Gas
$46.16 one way
$92.32 round trip
$3.48/gal25.4 MPG avg118 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.89
$51.56
$103.12
premium
$4.23
$56.06
$112.11
diesel
$4.80
$63.63
$127.26
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$46
Meals
$25–$50
Total
$71–$96
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 117.9 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $35 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
101.1
1
$35.39
$16.18
Efficient EV
84.3
0
$29.49
$13.48
EV Truck/SUV
134.8
1
$47.18
$21.57
Gas CO2
118 kg
EV CO2
39 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.
Forecast as of Jul 17, 2026
Origin
Buda, TX
Night
in Buda on Monday
Local time
9:03 PM
CDT
Current temp
90°F
Partly Sunny
S 5 to 10 mph6% chanceLive forecast
Flood Warning
Flood Warning issued July 17 at 7:57AM CDT until July 19 at 3:00AM CDT by NWS Austin/San Antonio TX
Flood Warning
Flood Warning issued July 17 at 7:57AM CDT until July 18 at 8:52PM CDT by NWS Austin/San Antonio TX
Destination
Brownsville, TX
Night
in Brownsville on Monday
Local time
9:03 PM
CDT
Current temp
95°F
Mostly Sunny
SE 8 to 15 mph4% chanceLive forecast
Flood Warning
Flood Warning issued July 17 at 7:57AM CDT until July 19 at 3:00AM CDT by NWS Austin/San Antonio TX
Flood Warning
Flood Warning issued July 17 at 7:57AM CDT until July 18 at 8:52PM CDT by NWS Austin/San Antonio TX
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
5 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
6h 3m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
San Antonio Missions National Historical Park
National Historical Park
Welcome to San Antonio Missions, a National Park Service site and the only UNESCO World Heritage Site in Texas. Each mission in the park is a center of community and has been since the early 1700s. Th...
On May 8, 1846, U.S. and Mexican troops clashed on the prairie of Palo Alto. The battle was the first in a two-year long war that changed the map of North America. Although the two countries have deve...
6 mi from route
~15 min detour
Free
near mile 325.4
Protecting sixty-six miles of wild coastline along the Gulf of America, the narrow barrier island is home to one of the last intact coastal prairie habitats in the United States. Along the hypersaline...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This trip is predominantly highway driving, with 83% of the 337 miles on major roads. You'll experience a stretch of 118.7 miles on I 37, which is the longest continuous highway segment. The transition to surface roads, including U.S. Highway 77 and Purple Heart Trail, will occur for the remaining miles. Expect a consistent cruising speed for most of the drive, with fewer exits and less urban merging once you leave the immediate vicinity of Buda.
83% highway — fuel and pacing are the main things to plan.
22 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 118.7 mi on I 37.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 37 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 58 miles in near I 410 / Connally Loop.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 13 significant decision points across 337 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 58 miles (I 410 / Connally Loop): Highway fork - watch signs carefully. Lane positioning matters here; at 69 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 69.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
775 ft35 ft
Total Climb
123 ft
Total Descent
796 ft
Highest Point
775 ft
~48.1 mi in
Elevation Range
741 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Buda, TX to Brownsville, TX, road signs begin pointing toward Corpus Christi along the way.
Located at the southernmost tip of Texas, Brownsville is a popular location for Mexican and American beach tourists. It is part of the Rio Grande Valley, a four-county region known for its abundance in citrus fruit production and Winter Texan population. The city features a combination of different climate regimes: Gulf Coast plains and the Great Plains. There is a lot to do in this city: historical museums, art galleries, beaches, birding locations and natural wildlife refuges. As Brownsville is a border town, its culture is predominantly Hispanic.
Doable as a same-day drive at 6h 3m. Total distance: 337 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 3m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 118.7 miles on I 37. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Brownsville, TX before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 58 miles (I 410 / Connally Loop): Highway fork - watch signs carefully. Lane positioning matters here; at 69 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 69.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — San Antonio Missions National Historical Park, Palo Alto Battlefield National Historical Park and Padre Island National Seashore. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.1 hours each way, a round trip means 12.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Brownsville, TX before the return drive.
