Origin
San Diego, TX
Afternoon in San Diego on Sunday
Local time
1:24 PM
CDT
Current temp
70°F
Unavailable
Live forecast
Trip from San Diego, TX to Houston, TX
Drive Time
4h 50m
Distance
247.6 mi
398 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$38
one way
Photo: Trace Hudson
Trip Overview
Traveling from San Diego to Houston covers 250.6 miles and typically takes about 4 hours and 9 minutes of driving time. Because this is a turn-heavy local drive rather than a straight interstate shot, it is best suited as a single-day trip. You should budget roughly $37 for fuel to complete the journey. Both cities are located within the Great Plains region of Texas, ensuring a consistent geographic feel as you navigate through the state. With just one suggested stop along the way, the trip is straightforward but requires your full attention due to the local road transitions.
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
123.8 miles from San Diego, TX
A natural place for your longest stop of the day , about 2h 23m into the drive .
Drive Character
Expect a hands-on driving experience rather than a monotonous interstate cruise, as this route features a 0% highway share. You will navigate a series of local roads, starting on East Gravis Avenue and East Main Street before transitioning onto Highway 77. Because the longest stretch on East Gravis Avenue is 0 miles, you should prepare for frequent turns and constant adjustments behind the wheel. The road's personality is defined by its local character, requiring you to stay alert through the various transitions. This is a practical, turn-heavy path that keeps you engaged with the local landscape throughout the entire 250.6-mile duration.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 25 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US Highway 59 South is the longest continuous segment at about 88.6 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US Highway 59 South and US 77. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 37.5 miles in near North US Highway 77.
Route Complexity
10/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 14 significant decision points across 247.6 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 37.5 miles (North US Highway 77): Lane positioning matters here; at 45.6 miles (US 77): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 212.2 miles (I 69; US 59 / Southwest Freeway): Merge point - match speed before joining. Lane positioning matters here.
Critical Maneuvers
5 of 14 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
37.5 mi into trip
|
~43m in
|
North US Highway 77
Turn left onto North US Highway 77
Lane positioning matters here
Use the left lane.
5
45.6 mi into trip
|
~53m in
|
US 77
Take the exit onto US 77 toward Sinton, Victoria
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward Sinton, Victoria
5
212.2 mi into trip
|
~4h 7m in
|
I 69; US 59 / Southwest Freeway
Merge onto I 69; US 59 / Southwest Freeway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
244.8 mi into trip
|
~4h 45m in
Keep slight left at fork toward Richmond Avenue, Downtown via Louisiana Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward Richmond Avenue, Downtown via Louisiana...
7
245.7 mi into trip
|
~4h 46m in
Take the exit toward Downtown, Louisiana Street
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 Downtown, Louisiana Street
Towns Along This Route
Between San Diego, TX and Houston, TX, road signs point toward County Road 44, Sinton and Victoria.
County Road 44
38.4 mi in
|
~45m
Sinton
45.6 mi in
|
~53m
|
via US 77
Victoria
45.6 mi in
|
~53m
|
via US 77
Main Roads
| Road | Distance | Duration |
|---|---|---|
| US Highway 59 South | 88.6 mi | 1h 38m |
| US 77 | 37.6 mi | 44m |
| United States Highway 77 | 33 mi | 37m |
| Southwest Freeway | 32.6 mi | 37m |
| East Main Street | 26.2 mi | 30m |
| East Gravis Avenue | 10.6 mi | 11m |
| U.S. Highway 77 | 4.7 mi | 5m |
| US 59 Northbound Frontage Road | 2 mi | 4m |
Longest stretch:
US Highway 59 South
— 88.6 mi, about 1h 38m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego, TX and Houston, TX.
1
Start on TX 359
122 ft
·
3 sec
·
TX 359
2
Continue on TX 44; TX 359
11 mi
·
11 min
·
East Gravis Avenue
3
Continue on TX 44; TX 359
26 mi
·
30 min
·
East Main Street
Use the straight lane.
4
Take the exit onto TX 44
0.6 mi
·
1 min
·
TX 44
5
Turn left onto North US Highway 77
1.0 mi
·
2 min
·
North US Highway 77
Use the left lane.
6
Take the ramp
0.2 mi
·
30 sec
Toward County Road 44
7
Merge onto I 69E; US 77
4.7 mi
·
5 min
·
U.S. Highway 77
8
Merge onto I 37; US 77; I 69E
1.4 mi
·
1 min
·
I 37; US 77; I 69E
9
Keep slight left at fork
0.8 mi
·
50 sec
10
Continue on I 37; US 77; I 69E
463 ft
·
5 sec
·
I 37; US 77; I 69E
11
Take the exit onto US 77
38 mi
·
44 min
·
US 77
Toward Sinton, Victoria
12
Turn slight right onto US 77
33 mi
·
37 min
·
United States Highway 77
13
Keep slight left at fork onto Spur 91
1.5 mi
·
1 min
·
Spur 91
14
Merge onto US 59
89 mi
·
1 hr 38 min
·
US Highway 59 South
15
Take the exit
0.3 mi
·
37 sec
16
Continue on 59 Northbound Frontage Road
1.6 mi
·
2 min
·
59 Northbound Frontage Road
17
Continue on this road
0.4 mi
·
58 sec
·
this road
18
Continue on US 59 Northbound Frontage Road
2.0 mi
·
4 min
·
US 59 Northbound Frontage Road
19
Continue on Southwest Freeway Frontage Road
1.3 mi
·
2 min
·
Southwest Freeway Frontage Road
20
Take the ramp
0.2 mi
·
31 sec
Toward I 69 North, US 59 North
21
Merge onto I 69; US 59
33 mi
·
37 min
·
Southwest Freeway
Use the straight / slight right lanes.
22
Keep slight left at fork
0.9 mi
·
1 min
Toward Richmond Avenue, Downtown via Louisiana Street
Use the slight left lane.
23
Take the exit
155 ft
·
3 sec
Toward Downtown, Louisiana Street
Use the straight / slight right lanes.
24
Continue on Louisiana Street
1.9 mi
·
4 min
·
Louisiana Street
Use the straight / left lanes.
25
Arrive at destination
Louisiana Street
Trip Plan
Since this is a 4-hour and 9-minute drive, departing in the early morning allows you to reach your destination with plenty of daylight to spare. Given the lack of high-speed highway stretches, plan for a steady pace and account for the extra time needed to navigate local intersections. You only need one stop to keep your energy up for the duration of the trip. Make sure to double-check your navigation before leaving, as the reliance on local roads like East Gravis Avenue and East Main Street means you will need to pay close attention to your turn-by-turn directions. Keeping your fuel budget of $37 in mind, try to fill up before you leave San Diego to avoid any unnecessary stops.
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 123.8 miles from San Diego, TX, or about 2h 23m into the drive.
The longest continuous stretch on this route runs about 88.6 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 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 123.8 miles or 2h 23m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 51m
Traffic, exits, and arrival timing usually matter more near Houston, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving San Diego, 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 Diego, TX
This is one driving day of about 247.6 miles and 4h 50m.
Your first comfortable stop window is around 80 miles from San Diego, 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 US Highway 59 South for about 88.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 123.8 mi from San Diego, TX · 2h 23m into the drive
Mid-route town
Meal stop
124 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 123.8 miles from San Diego, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before US Highway 59 South if your tank is already low. That segment runs about 88.6 miles.
Arriving in Houston, TX
The final approach into Houston, 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 Houston, TX.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$37.82 one way
$75.64 round trip
$3.88/gal
25.4 MPG avg
87 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $41.45 | $82.90 |
| premium | $4.59 | $44.75 | $89.51 |
| diesel | $5.64 | $55.01 | $110.02 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$38
Meals
$25–$50
Total
$63–$88
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 86.6 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $26 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 74.3 | 0 | $26.00 | $11.88 |
| Efficient EV | 61.9 | 0 | $21.67 | $9.90 |
| EV Truck/SUV | 99 | 1 | $34.66 | $15.85 |
Gas CO2
87 kg
EV CO2
29 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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
Houston, TX
Afternoon in Houston on Sunday
Local time
1:24 PM
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
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
4h 50m 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 Diego, TX to Houston, TX covers 247.6 miles and takes about 4h 50m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US Highway 59 South, US 77, United States Highway 77. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 123.8 miles from San Diego, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $37.82 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 14 significant decision points across 247.6 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 37.5 miles (North US Highway 77): Lane positioning matters here; at 45.6 miles (US 77): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 212.2 miles (I 69; US 59 / Southwest Freeway): Merge point - match speed before joining. Lane positioning matters here.
Between San Diego, TX and Houston, TX, road signs point toward County Road 44, Sinton and Victoria.
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