Ralls, TX to San Antonio, TX is 377.7 miles and takes about 6h 51m via US Highway 84 and I 10, with a fuel budget near $57 and enough daylight to finish in a day. This drive primarily takes you through the Great Plains region of Texas, offering a straightforward path south. You'll spend most of your time on major highways, making it a relatively efficient trip. Consider this route if you're looking for a direct connection between these two points with minimal fuss.
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
188.8 miles from Ralls, TX
A natural place for your longest stop of the day
, about 3h 35m into the drive
.
Main Roads
Road
Distance
Duration
US Highway 84
73.9 mi
1h 14m
I 10
71.7 mi
1h 14m
Grassmeyer Street
41.9 mi
44m
US 83
40 mi
38m
Avenue E
33.8 mi
50m
State Highway 153
29.5 mi
33m
Ellis Street
29.4 mi
31m
South 7th Street
16.5 mi
18m
Longest stretch:
US Highway 84
— 73.9 mi, about 1h 14m
Traffic on I-10
Hour-of-day weekday pattern from 28 FHWA count stations on your route.
Peak
2 PM
~537 veh/hr typical
· worst 948
Quietest
3 AM
~95 veh/hr
Peak-to-quiet ratio
5.7×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 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 Ralls, TX and San Antonio, TX.
1
Start on US 82; TX 114
43 ft·6 sec·4th Street
2
Turn left onto TX 207
34 mi·50 min·Avenue E
3
Turn straight onto TX 207
1.1 mi·2 min·North Avenue F
4
At end of road, turn left onto US 84
74 mi·1 hr 14 min·US Highway 84
5
Keep slight left at fork onto US 84
6.5 mi·6 min·US 84
Toward I 20 East, US 84 East: Abilene
6
Take the exit
0.1 mi·18 sec
Exit 244Toward SH 70 South, SH 70 Business: Sweetwater, San Angelo
7
Turn slight left onto Southwest Georgia Avenue
0.1 mi·16 sec·Southwest Georgia Avenue
8
Turn right onto TX 70
0.7 mi·1 min·Lamar Street
9
Continue on TX 70
10 mi·10 min·State Highway 70
10
Turn left onto TX 153
29 mi·33 min·State Highway 153
11
Turn right onto FM 2111
12 mi·13 min·FM 2111
12
Turn left onto TX 158
6.3 mi·7 min·TX 158
13
At end of road, turn right onto US 67; US 83
387 ft·18 sec·Hutchings Avenue
14
Turn left onto US 83
17 mi·18 min·South 7th Street
Use the left lane.
15
Continue on US 83
42 mi·44 min·Grassmeyer Street
16
Continue on US 83
29 mi·31 min·Ellis Street
17
Take the exit onto US 83
40 mi·38 min·US 83
Toward I 10 East: San AntonioUse the left lane.
18
Continue on I 10
54 mi·54 min·I 10
Use the straight / slight right lanes.
19
Keep slight right at fork onto I 10; US 87
17 mi·19 min·I 10; US 87
Use the straight / slight right lanes.
20
Keep slight right at fork onto I 10; US 87
1.7 mi·2 min·McDermott Freeway
21
Take the exit
0.5 mi·1 min
Exit 569CToward Santa Rosa Street, DowntownUse the slight right lane.
22
Turn straight onto North Pecos-La Trinidad
0.2 mi·16 sec·North Pecos-La Trinidad
23
Keep slight right at fork onto North Pecos-La Trinidad
0.6 mi·1 min·North Pecos-La Trinidad
Use the straight lane.
24
Turn left onto Dolorosa Street
0.5 mi·55 sec·Dolorosa Street
Use the straight / left lanes.
25
Arrive at destination
Dolorosa Street
Trip Plan
Given the 6h 51m estimated driving time, departing Ralls in the morning is advisable to ensure you arrive in San Antonio with plenty of daylight. With only one recommended stop, you have flexibility in pacing your breaks. Keep an eye on your fuel, especially during the 73.9-mile stretch on US Highway 84, and budget around $57 for gas. Pay attention to I 10 as you approach San Antonio, as traffic and exit density can increase significantly.
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 188.8 miles from Ralls, TX, or about 3h 35m into the drive.
The longest continuous stretch on this route runs about 73.9 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 83 miles or 1h 40m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 188.8 miles or 3h 35m 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 46m
Traffic, exits, and arrival timing usually matter more near San Antonio, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Ralls, 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 Ralls, TX
This is one driving day of about 377.7 miles and 6h 51m.
Your first comfortable stop window is around 83 miles from Ralls, 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 84 for about 73.9 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 16
5 decision points cluster between mile 108.9 and 376 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
108.9 mi into trip|~2h 6m in|US 84
Keep slight left at fork onto US 84 toward I 20 East, US 84 East: Abilene
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 20 East, US 84 East: Abilene
6
115.3 mi into trip|~2h 13m in
Take the exit toward SH 70 South, SH 70 Business: Sweetwater, San Angelo
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 244
Toward SH 70 South, SH 70 Business: Sweetwater,...
6
174.9 mi into trip|~3h 19m in|US 83 / South 7th Street
Turn left onto US 83 / South 7th Street
Lane positioning matters here
Use the left lane.
8
262.7 mi into trip|~4h 53m in|US 83
Take the exit onto US 83 toward I 10 East: San Antonio
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the left lane.
Toward I 10 East: San Antonio
8
376 mi into trip|~6h 47m in
Take the exit toward Santa Rosa Street, Downtown
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 569C
Toward Santa Rosa Street, Downtown
Fuel & Cost
Regular Gas
$51.73 one way
$103.47 round trip
$3.48/gal25.4 MPG avg132 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.89
$57.79
$115.57
premium
$4.23
$62.83
$125.65
diesel
$4.80
$71.32
$142.63
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$52
Meals
$25–$50
Total
$77–$102
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 132.2 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $40 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
113.3
1
$39.66
$18.13
Efficient EV
94.4
1
$33.05
$15.11
EV Truck/SUV
151.1
1
$52.88
$24.17
Gas CO2
132 kg
EV CO2
44 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
Ralls, TX
Late night
in Ralls on Monday
Local time
12:54 AM
CDT
Current temp
64°F
Slight Chance Showers And Thunderstorms
S 10 mph23% chanceLive forecast
Flash Flood Warning
Flash Flood Warning issued July 17 at 1:00AM CDT until July 17 at 7:00AM CDT by NWS Austin/San Antonio TX
Flash Flood Warning
Flash Flood Warning issued July 16 at 11:42PM CDT until July 17 at 7:00AM CDT by NWS Austin/San Antonio TX
Destination
San Antonio, TX
Late night
in San Antonio on Monday
Local time
12:54 AM
CDT
Current temp
75°F
Mostly Cloudy
SE 10 mph8% chanceLive forecast
Flash Flood Warning
Flash Flood Warning issued July 17 at 1:00AM CDT until July 17 at 7:00AM CDT by NWS Austin/San Antonio TX
Flash Flood Warning
Flash Flood Warning issued July 16 at 11:42PM CDT until July 17 at 7:00AM CDT by NWS Austin/San Antonio TX
94°F
Eden, TX
189 mi in
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
11 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 51m 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...
9 mi from route
~22 min detour
Free
near mile 377.7
Lyndon B. Johnson National Historical Park tells the story of our 36th president beginning with his ancestors until his final resting place on his beloved LBJ Ranch. This entire "circle of life" gives...
27 mi from route
~67 min detour
Free
near mile 325.6
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This trip is mostly highway, with 67% of the route on major roads. You'll experience a longest stretch of 73.9 miles on US Highway 84 before transitioning to interstate and then surface streets like Grassmeyer Street closer to San Antonio. Expect a mix of rural cruising and merging onto I 10, which can have dense exit traffic at times. The latter portion of the drive will involve more frequent intersections as you enter the city.
67% highway — fuel and pacing are the main things to plan.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 73.9 mi on US Highway 84.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on US Highway 84 and I 10. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 108.9 miles in near US 84.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 377.7 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 108.9 miles (US 84): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 115.3 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 174.9 miles (US 83 / South 7th Street): Lane positioning matters here.
Elevation Profile
Gently rolling terrain
3,110 ft649 ft
Total Climb
714 ft
Total Descent
3,176 ft
Highest Point
3,110 ft
Elevation Range
2,461 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Ralls, TX and San Antonio, TX, road signs point toward Sh 70 South, Sh 70 Business: Sweetwater and San Angelo.
San Antonio is the second largest city in the state of Texas and the 7th largest in the United States. It's the 24th largest metropolitan area in the country. Visited by more than 31 million annual visitors, San Antonio is a beautiful city at the axis of three different geological terrains: Hill Country, South Texas Plains and Prairie and Lakes. There's a lot to do in this city: fine art museums, historical missions and plenty of amusement parks in addition to great dining and lots of drinking. The culture and people are vibrant and interesting. San Antonio's downtown is one of the most lively in the nation.
Top landmarks
•Alamo Mission in San Antonio — historic place in San Antonio, Bexar County, Texas
•San Antonio Missions National Historical Park — historic district in San Antonio, Bexar County, Texas
•Fort Sam Houston — military base in San Antonio, Texas
Doable as a same-day drive at 6h 51m. Total distance: 377.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 51m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 73.9 miles on US Highway 84. 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 San Antonio, 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 108.9 miles (US 84): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 115.3 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 174.9 miles (US 83 / South 7th Street): Lane positioning matters here.
Yes — San Antonio Missions National Historical Park and Lyndon B Johnson National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.9 hours each way, a round trip means 13.7 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at San Antonio, TX before the return drive.
