Dallas, TX to Sebastian, TX is 488.1 miles and takes about 8h 51m via South R L Thornton Freeway and U.S. Highway 77, with a fuel budget near $74 and an overnight stay recommended. This trip stays within the Great Plains region of Texas, primarily utilizing major highways for a straightforward journey. Given the nearly 9-hour drive time, splitting this route over two days is a sensible approach to avoid fatigue. Expect a route focused on efficient travel rather than extensive sightseeing.
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
244.1 miles from Dallas, TX
A natural place for your longest stop of the day
, about 4h 15m into the drive
.
Drive Character
This drive is predominantly highway-focused, with 87% of the route utilizing major roadways. You'll experience long stretches of consistent driving, including one segment of 89.9 miles on South R L Thornton Freeway. The primary roads, including U.S. Highway 77 and TX 130 Toll, are designed for efficient travel, meaning you'll likely encounter good road conditions and steady speeds for most of the journey. While not a winding scenic route, its highway nature ensures a predictable and relatively quick transit.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 42 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
South R L Thornton Freeway is the longest continuous segment at about 89.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on South R L Thornton 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 0.6 miles in.
Driving Effort10/10
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 23 significant decision points across 488.1 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 0.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 0.8 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 162.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Critical Maneuvers
5 of 23 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
9
0.6 mi into trip|~1m in
Keep slight left at fork toward I 30 West, I 35E South
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 30 West, I 35E South
8
0.8 mi into trip|~1m in
Keep slight right at fork toward I 35E South
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward I 35E South
7
162.6 mi into trip|~2h 49m in
Take the exit toward TX 130 Toll South: San Antonio
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 265
Toward TX 130 Toll South: San Antonio
7
221.8 mi into trip|~3h 45m in
Take the exit toward US 183 South: Lockhart
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 470
Toward US 183 South: Lockhart
8
487.3 mi into trip|~8h 50m in
Take the exit toward Spur 413 West, FM 2629 East
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 38
Toward Spur 413 West, FM 2629 East
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 Dallas, TX to Sebastian, TX, road signs begin pointing toward Brownsville along the way.
Brownsville
376.8 mi in|~6h 48m|via I 69E; US 77
Main Roads
Road
Distance
Duration
South R L Thornton Freeway
89.9 mi
1h 32m
U.S. Highway 77
79.2 mi
1h 28m
TX 130 Toll
58.5 mi
54m
TX 80
51.2 mi
56m
South US Highway 181
40.2 mi
45m
Purple Heart Trail
37.9 mi
39m
I 69E
31.3 mi
33m
I 35
26.5 mi
26m
Longest stretch:
South R L Thornton Freeway
— 89.9 mi, about 1h 32m
Turn-by-Turn Driving Directions
Step-by-step road directions between Dallas, TX and Sebastian, TX.
1
Start on North Lamar Street
0.2 mi·34 sec·North Lamar Street
2
Turn right onto Elm Street
0.2 mi·30 sec·Elm Street
3
Continue on Elm Street
0.1 mi·14 sec·Elm Street
4
Take the ramp
327 ft·7 sec
Toward I 30, I 35E
5
Keep slight left at fork
0.2 mi·20 sec
Toward I 30 West, I 35E SouthUse the straight / slight right lanes.
6
Keep slight right at fork
330 ft·8 sec
Toward I 35E SouthUse the slight left / slight right lanes.
7
Merge onto I 35E
0.8 mi·1 min·South Stemmons Freeway
Use the straight / slight right lanes.
8
Continue on I 35E
0.5 mi·44 sec·South R L Thornton Freeway
9
Continue on I 35E
89 mi·1 hr 31 min·South R L Thornton Freeway
Exit 426Toward Dallas ZooUse the straight / slight right lanes.
10
Continue on I 35; US 77
6.6 mi·7 min·North Jack Kultgen Expressway
Use the straight / slight right lanes.
11
Continue on I 35
38 mi·39 min·Purple Heart Trail
Use the straight / slight right lanes.
12
Keep slight left at fork onto I 35
26 mi·26 min·I 35
Use the straight / slight right lanes.
13
Take the exit
0.7 mi·55 sec
Exit 265Toward TX 130 Toll South: San AntonioUse the slight right lane.
14
Continue on TX 130 Toll
59 mi·54 min·TX 130 Toll
Use the straight / slight right lanes.
15
Take the exit
0.2 mi·29 sec
Exit 470Toward US 183 South: LockhartUse the straight / slight right lanes.
16
Continue on US 183
0.5 mi·35 sec·United States Highway 183
17
Continue on US 183
4.9 mi·8 min·North Colorado Street
18
Continue on US 183
10 mi·11 min·US 183
19
Continue on US 183
4.2 mi·6 min·North Magnolia Avenue
20
Continue on TX 80
51 mi·56 min·TX 80
21
Turn slight left onto FM 792
8.4 mi·10 min·Farm-to-Market Road 792
22
Continue on TX 72; TX 239
0.8 mi·1 min·East Main Street
23
Turn left onto US 181
1.2 mi·1 min·South Sunset Strip Drive
24
Continue on US 181
40 mi·45 min·South US Highway 181
25
Continue on US 181
0.8 mi·55 sec·North 8th Street
26
Continue on US 181
16 mi·18 min·US Highway 181 South
27
Take the exit onto US 181
0.3 mi·45 sec·US 181
28
Keep slight right at fork onto US 181
213 ft·5 sec·US Route 181
29
Turn straight onto US 181
0.7 mi·1 min·US Highway 181
30
Take the ramp
0.4 mi·46 sec
31
Merge onto US 77
12 mi·13 min·US 77
32
Take the exit onto US 77
0.1 mi·13 sec·US 77
Toward I 37, US 77, I 69E
33
Keep slight left at fork
0.4 mi·47 sec
34
Merge onto I 37; US 77; I 69E
2.5 mi·2 min·I 37; US 77; I 69E
Use the straight lane.
35
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.
36
Keep slight left at fork onto US 77
61 mi·1 hr 9 min·U.S. Highway 77
37
Keep slight left at fork onto I 69E; US 77
18 mi·18 min·U.S. Highway 77
Use the straight / slight right lanes.
38
Take the exit
0.2 mi·28 sec
Exit 38Toward Spur 413 West, FM 2629 EastUse the slight right lane.
39
Turn straight onto Interstate 69E Frontage Road
0.2 mi·24 sec·Interstate 69E Frontage Road
40
Turn right onto Spur 413; FM 2629
0.3 mi·38 sec·East Main Street
41
Turn right
51 ft·3 sec
42
Arrive at destination
Trip Plan
With an estimated 8h 51m drive, it's best to plan for an overnight stop. Consider departing early in the morning on your first day to cover about half the distance, allowing for a relaxed second day. Keep an eye on your fuel gauge, especially during the longest stretch of 89.9 miles, as services can sometimes be spaced out on highway routes. The total fuel cost is estimated at $74, so budget accordingly. Two planned stops are factored in, so use these for breaks and refueling.
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.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 244.1 miles from Dallas, TX, or about 4h 15m into the drive.
The longest continuous stretch on this route runs about 89.9 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 107 miles or 1h 52m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 244.1 miles or 4h 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 244.1 miles or 4h 15m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 44m
Traffic, exits, and arrival timing usually matter more near Sebastian, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Dallas, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Dallas, TX
Aim for roughly 244 miles and 4.4 hours of wheel time on this day.
Day 2
Finish the approach into Sebastian, TX
Aim for roughly 244 miles and 4.4 hours of wheel time on this day.
Your first comfortable stop window is around 107 miles from Dallas, TX.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on South R L Thornton Freeway for about 89.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 244.1 mi from Dallas, TX
· 4h 15m into the drive
The midpoint is around 244.1 miles from Dallas, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before South R L Thornton Freeway if your tank is already low. That segment runs about 89.9 miles.
Overnight split
Hotel stop
For a steadier pace, wrap day one after about 244 miles or 4.4 hours on the road.
Arriving in Sebastian, TX
The final approach into Sebastian, 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 Sebastian, TX.
On a multi-day trip, keep the last day a little lighter so you reach Sebastian, TX with some flexibility left in the schedule.
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...
7 mi from route
~19 min detour
Free
near mile 84.2
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 437.6
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...
30 mi from route
~75 min detour
Free
near mile 488.1
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$73.75 one way
$147.51 round trip
$3.84/gal25.4 MPG avg171 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$80.73
$161.46
premium
$4.54
$87.15
$174.29
diesel
$5.61
$107.77
$215.53
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$74
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$204–$314
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 170.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $51 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
146.4
1
$51.25
$23.43
Efficient EV
122
1
$42.71
$19.52
EV Truck/SUV
195.2
2
$68.33
$31.24
Gas CO2
171 kg
EV CO2
57 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
Dallas, TX
Late night
in Dallas on Friday
Local time
3:22 AM
CDT
Current temp
60°F
Unavailable
Live forecast
Destination
Sebastian, TX
Late night
in Sebastian on Friday
Local time
3:22 AM
CDT
Current temp
69°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 51m 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 Dallas, TX to Sebastian, TX covers 488.1 miles and takes about 8h 51m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are South R L Thornton Freeway, U.S. Highway 77, TX 130 Toll. Most of the drive stays on highways, so watch for ramps and exits.
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 244 miles on day one.
The midpoint is about 244.1 miles from Dallas, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $73.75 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 23 significant decision points across 488.1 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 0.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 0.8 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 162.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
On the drive from Dallas, TX to Sebastian, TX, road signs begin pointing toward Brownsville along the way.
Yes. Nearby national parks include Waco Mammoth National Monument, Padre Island National Seashore and Palo Alto Battlefield National Historical Park.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than 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.
Pages are published only after passing our data-quality checks; our
methodology page
documents refresh cadence, editorial standards, and known limitations.
