The drive from Austin, TX to Cameron Park, TX covers 347.5 miles and takes about 6h 16m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 37, U.S. Highway 77, Purple Heart Trail for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 118.7 miles on I 37.
At current regular gas prices, budget about $52.51 one way before food or hotel costs.
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
173.7 miles from Austin, TX
A natural place for your longest stop of the day
, about 3h 4m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 6h 16m. Total distance: 347.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 16m drive, plan rest stops for pacing.
Drive Character
This is a 6h 16m highway drive covering 347.5 miles, with most of the trip on I 37 and U.S. Highway 77. The longest continuous stretch is about 118.7 miles on I 37.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 22 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 37 is the longest continuous segment at about 118.7 miles.
How Hard Is This Drive?
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 0.5 miles in near North Interstate 35.
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 16 significant decision points across 347.5 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 0.5 miles (North Interstate 35): Lane positioning matters here; at 71.1 miles (I 410 / Connally Loop): Highway fork - watch signs carefully. Lane positioning matters here; at 82 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 16 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
7
0.5 mi into trip|~1m in|North Interstate 35
At end of road, turn right onto North Interstate 35
Lane positioning matters here
Use the straight / slight left lanes.
7
71.1 mi into trip|~1h 18m 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
82 mi into trip|~1h 31m 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
82.2 mi into trip|~1h 31m 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
8
339.9 mi into trip|~6h 4m in|I 169; TX 550 Toll / Interstate 169
Keep slight right at fork onto I 169; TX 550 Toll / Interstate 169 toward TX 550 Toll: Port of Brownsville
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 10B
Toward TX 550 Toll: Port of Brownsville
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Austin, TX and Cameron Park, TX, road signs point toward Corpus Christi and Brownsville.
Corpus Christi
82 mi in|~1h 31m
Brownsville
201.5 mi in|~3h 32m|via I 69E; US 77
Main Roads
Road
Distance
Duration
I 37
118.7 mi
1h 59m
U.S. Highway 77
105 mi
1h 56m
Purple Heart Trail
58.3 mi
1h 3m
I 69E
31.3 mi
33m
Connally Loop
11 mi
12m
North Pan Am Expressway
10 mi
11m
Paredes Line Road
2.9 mi
4m
Interstate 169
2.3 mi
2m
Longest stretch:
I 37
— 118.7 mi, about 1h 59m
Turn-by-Turn Driving Directions
Step-by-step road directions between Austin, TX and Cameron Park, TX.
1
Start on East 5th Street
0.5 mi·1 min·East 5th Street
Use the straight / right lanes.
2
At end of road, turn right onto North Interstate 35
0.4 mi·39 sec·North Interstate 35
Use the straight / slight left lanes.
3
Take the ramp
0.2 mi·21 sec
Toward I 35 South
4
Merge onto I 35; US 290
46 mi·50 min·Purple Heart Trail
Use the straight / slight right lanes.
5
Continue on I 35
1.7 mi·1 min·Interstate Highway 35
Use the straight / slight right lanes.
6
Continue on I 35
12 mi·12 min·Purple Heart Trail
Use the straight / slight right lanes.
7
Continue on I 35
10.0 mi·11 min·North Pan Am Expressway
Use the straight / slight right lanes.
8
Keep slight right at fork onto I 410
11 mi·12 min·Connally Loop
Toward I 410 SouthUse the straight / slight right lanes.
9
Take the exit
0.2 mi·28 sec
Exit 41Toward I 37, US 281 North: San Antonio, Corpus ChristiUse the straight / slight right lanes.
10
Keep slight left at fork
0.5 mi·1 min
Toward I 37 South: Corpus ChristiUse the slight left / slight right lanes.
11
Merge onto I 37
119 mi·1 hr 59 min·I 37
Use the straight / slight right lanes.
12
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.
13
Keep slight left at fork onto US 77
61 mi·1 hr 9 min·U.S. Highway 77
14
Keep slight left at fork onto I 69E; US 77
44 mi·46 min·U.S. Highway 77
Use the straight / slight right lanes.
15
Continue on I 69E; US 77; US 83
2.1 mi·2 min·North Expressway
16
Keep slight right at fork onto I 169; TX 550 Toll
2.3 mi·2 min·Interstate 169
Exit 10BToward TX 550 Toll: Port of BrownsvilleUse the straight / slight right lanes.
17
Take the exit
0.2 mi·29 sec
Toward FM 1847: Paredes Line RoadUse the straight / slight right lanes.
18
Turn straight onto FM 511
1.4 mi·1 min·FM 511
19
Turn right onto FM 1847
2.9 mi·4 min·Paredes Line Road
20
Turn left onto Avenida Gregory
0.2 mi·37 sec·Avenida Gregory
21
Turn right onto Avenida Florencia
0.6 mi·2 min·Avenida Florencia
22
Arrive at destination
Avenida Florencia
Trip Plan
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 173.7 miles from Austin, TX, or about 3h 4m 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 76 miles or 1h 24m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 173.7 miles or 3h 4m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 8m
Traffic, exits, and arrival timing usually matter more near Cameron Park, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Austin, 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 Austin, TX
This is one driving day of about 347.5 miles and 6h 16m.
Your first comfortable stop window is around 76 miles from Austin, 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.
Halfway Point
Midpoint
About 173.7 mi from Austin, TX
· 3h 4m into the drive
The midpoint is around 173.7 miles from Austin, TX, which is a good place for a longer meal and fuel stop.
Arriving in Cameron Park, TX
The final approach into Cameron Park, 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 Cameron Park, 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.
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...
4 mi from route
~10 min detour
Free
near mile 347.5
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...
27 mi from route
~67 min detour
$25
near mile 263.6
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$52.51 one way
$105.02 round trip
$3.84/gal25.4 MPG avg122 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$57.47
$114.95
premium
$4.54
$62.04
$124.09
diesel
$5.61
$76.72
$153.45
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$53
Meals
$25–$50
Total
$78–$103
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 121.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $36 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
104.3
1
$36.49
$16.68
Efficient EV
86.9
0
$30.41
$13.90
EV Truck/SUV
139
1
$48.65
$22.24
Gas CO2
122 kg
EV CO2
41 kg (66% 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 Apr 15, 2026
Origin
Austin, TX
Late night
in Austin on Friday
Local time
2:39 AM
CDT
Current temp
63°F
Unavailable
Live forecast
Destination
Cameron Park, TX
Late night
in Cameron Park on Friday
Local time
2:39 AM
CDT
Current temp
70°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
7 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 16m 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.
Frequently Asked Questions
The drive from Austin, TX to Cameron Park, TX covers 347.5 miles and takes about 6h 16m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 37, U.S. Highway 77, Purple Heart Trail. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 173.7 miles from Austin, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $52.51 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
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 16 significant decision points across 347.5 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 0.5 miles (North Interstate 35): Lane positioning matters here; at 71.1 miles (I 410 / Connally Loop): Highway fork - watch signs carefully. Lane positioning matters here; at 82 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Austin, TX and Cameron Park, TX, road signs point toward Corpus Christi and Brownsville.
Data sources
The figures on this page are computed from open government and mapping datasets, not crowdsourced reviews. Distances and geometry come from
OSRM
over
OpenStreetMap.
Fuel cost uses
EIA
weekly regional averages.
National park proximity is from the
NPS API.
Full methodology, refresh cadence, and limitations are documented on the
methodology page.
