The drive from Sulphur Springs, TX to Laredo, TX covers 508.5 miles and takes about 8h 57m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on Purple Heart Trail, South R L Thornton Freeway, I 30 for much of the mileage,
and the overall profile is long-distance drive.
The longest uninterrupted segment is about 244.1 miles on Purple Heart Trail.
At current regular gas prices, budget about $76.84 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
254.2 miles from Sulphur Springs, TX
A natural place for your longest stop of the day
, about 4h 27m into the drive
.
Sulphur Springs was founded in 1854, though it was then known as "Bright Star", and is in the Blackland Prairie region of Texas. Though the springs that brought about the name have more or less vanished, it is now known as "The Dairy Capital of Texas", with a museum cultured to that very point, even if the dairy industry has waned a bit around here in the early 21st century.
Long-distance drive route profile with national parks nearby.
Drive Character
At 508.5 miles and 8h 57m of driving, this is a route where fuel stops, weather, and timing matter more than any single turn. The main roads are Purple Heart Trail and South R L Thornton Freeway.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 28 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Purple Heart Trail is the longest continuous segment at about 244.1 miles.
How Hard Is This Drive?
At 8h 57m, this is a long-haul route where pacing matters more than any single turn. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 79.9 miles in.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 17 significant decision points across 508.5 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 79.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 80.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 271.2 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 17 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
79.9 mi into trip|~1h 25m in
Take the exit toward I 35E: Denton, Waco
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 46A
Toward I 35E: Denton, Waco
9
80.6 mi into trip|~1h 27m in
Keep slight left at fork toward I 35E North, I 35E South: Denton, Waco
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 35E North, I 35E South: Denton, Waco
8
271.2 mi into trip|~4h 45m in|I 35; US 290 / Purple Heart Trail
Keep slight left at fork onto I 35; US 290 / Purple Heart Trail toward 32nd Street, Dean Keeton Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward 32nd Street, Dean Keeton Street
8
351.1 mi into trip|~6h 14m in|I 35 / North Pan Am Expressway
Keep slight left at fork onto I 35 / North Pan Am Expressway toward I 35 South: Lower Level, Laredo
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward I 35 South: Lower Level, Laredo
8
353.2 mi into trip|~6h 17m in|I 10; US 87 / South Pan Am Expressway
Keep slight right at fork onto I 10; US 87 / South Pan Am Expressway toward I 10 East, US 87 South, Spur 536: Houston, South Alamo Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 10 East, US 87 South, Spur 536: Housto...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Sulphur Springs, TX and Laredo, TX, road signs point toward Waco, Denton, Dallas Zoo and Spur 536: Houston.
The midpoint is around 254.2 miles from Sulphur Springs, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before Purple Heart Trail if your tank is already low. That segment runs about 244.1 miles.
Overnight split
Hotel stop
For a steadier pace, wrap day one after about 254 miles or 4.5 hours on the road.
Arriving in Laredo, TX
The final approach into Laredo, 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 Laredo, TX.
On a multi-day trip, keep the last day a little lighter so you reach Laredo, TX with some flexibility left in the schedule.
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.
Waco Mammoth National Monument
National Monument
Standing as tall as 14 feet and weighing 20,000 pounds, Columbian mammoths roamed across what is present-day Texas thousands of years ago. Today, the fossil specimens represent the nation's first and...
6 mi from route
~15 min detour
Free
near mile 175.3
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...
9 mi from route
~23 min detour
Free
near mile 350.7
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$76.84 one way
$153.67 round trip
$3.84/gal25.4 MPG avg178 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$84.10
$168.21
premium
$4.54
$90.79
$181.58
diesel
$5.61
$112.27
$224.54
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$77
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$207–$317
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 177.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $53 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
152.5
1
$53.39
$24.41
Efficient EV
127.1
1
$44.49
$20.34
EV Truck/SUV
203.4
2
$71.19
$32.54
Gas CO2
178 kg
EV CO2
59 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 Apr 15, 2026
Origin
Sulphur Springs, TX
Morning
in Sulphur Springs on Saturday
Local time
9:20 AM
CDT
Current temp
75°F
Unavailable
Live forecast
Destination
Laredo, TX
Morning
in Laredo on Saturday
Local time
9:20 AM
CDT
Current temp
84°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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
9 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
8h 57m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Sulphur Springs, TX to Laredo, TX covers 508.5 miles and takes about 8h 57m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Purple Heart Trail, South R L Thornton Freeway, I 30. Expect a mix of highway and local road driving.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 254 miles on day one.
The midpoint is about 254.2 miles from Sulphur Springs, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $76.84 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 2 meaningful breaks 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 17 significant decision points across 508.5 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 79.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 80.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 271.2 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Sulphur Springs, TX and Laredo, TX, road signs point toward Waco, Denton, Dallas Zoo and Spur 536: Houston.
Yes. Nearby national parks include Waco Mammoth National Monument and San Antonio Missions National Historical Park.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
