Trip from San Antonio, TX to Llano Grande, TX

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Jul 20, 2026 · Editorial standards

Drive Time

4h 33m

Distance

250.5 mi

403 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$34

one way

EV Charging

Unknown

Best Time to Leave

Save up to 40 min

4 AM

4h 20m ★

6 AM

4h 33m

8 AM

5h 0m

10 AM

4h 43m

12 PM

4h 40m

3 PM

4h 44m

5 PM

4h 59m

8 PM

4h 25m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time

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San Antonio, TX

Wikimedia Commons

Llano Grande, TX

Jeff Stapleton

Trip Overview

San Antonio, TX to Llano Grande, TX is 250.5 miles and takes about 4h 33m via Lucian Adams Freeway, with a fuel budget near $33 and enough daylight to finish in a day. This trip stays within the Great Plains region, offering a straightforward drive across Texas. You'll be on main roads for the majority of the time, making it an efficient option for a single-day excursion. Plan for a relatively easy drive that doesn't require an overnight stay.

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

125.2 miles from San Antonio, TX

A natural place for your longest stop of the day , about 2h 14m into the drive .

Main Roads

Road	Distance	Duration
Lucian Adams Freeway	66.8 mi	1h 8m
South Nueces Street	66.2 mi	1h 10m
Falfurrias Expressway	55.8 mi	58m
I 69C	27.9 mi	30m
US 281 South	15.2 mi	19m
I 2	12.3 mi	13m
North Pleasantview Drive	2.4 mi	5m
William J Bordelon Freeway	1.4 mi	1m

Longest stretch: Lucian Adams Freeway — 66.8 mi, about 1h 8m

Traffic on I-37

Hour-of-day weekday pattern from 28 FHWA count stations on your route.

Peak

4 PM

~2,746 veh/hr typical · worst 3,357

Quietest

2 AM

~238 veh/hr

Peak-to-quiet ratio

11.5×

busier at peak than in the quiet hours

12a 6a noon 6p 11p

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 San Antonio, TX and Llano Grande, TX.

Start on Dolorosa Street

143 ft · 4 sec · Dolorosa Street

Continue on West Market Street

0.4 mi · 42 sec · West Market Street

Continue on East Market Street

0.4 mi · 40 sec · East Market Street

Turn right onto Tower of the Americas Way

0.2 mi · 21 sec · Tower of the Americas Way

Use the right lane.

Take the ramp

0.3 mi · 33 sec

Toward I 37 South, US 281 South

Merge onto I 37; US 281

1.4 mi · 1 min · William J Bordelon Freeway

Continue on I 37; US 281

67 mi · 1 hr 8 min · Lucian Adams Freeway

Use the straight / slight right lanes.

Take the exit onto US 281 South

15 mi · 19 min · US 281 South

Toward US 281 South Use the straight / slight right lanes.

Keep slight left at fork onto US 281

66 mi · 1 hr 10 min · South Nueces Street

Keep slight left at fork onto I 69C; US 281

9.5 mi · 10 min · I 69C; US 281

Keep slight left at fork onto I 69C; US 281

56 mi · 58 min · Falfurrias Expressway

Use the straight / right lanes.

Keep slight left at fork onto I 69C; US 281

18 mi · 20 min · I 69C; US 281

Use the straight / slight right lanes.

Merge onto I 2 East; US 83 East

0.5 mi · 33 sec · I 2 East; US 83 East

Continue on I 2; US 83

12 mi · 13 min · I 2; US 83

Use the straight / slight right lanes.

Take the exit

0.3 mi · 43 sec

Exit 160 Toward FM 1015: International Boulevard Use the slight right lane.

Turn straight onto East Expressway 83

0.2 mi · 22 sec · East Expressway 83

Turn right onto 3½W

2.4 mi · 5 min · North Pleasantview Drive

Turn right

0.1 mi · 36 sec

Turn left onto Erasmo Drive

123 ft · 5 sec · Erasmo Drive

Arrive at destination

Erasmo Drive

Trip Plan

For this 4-hour-plus drive, consider an early morning departure from San Antonio to maximize daylight. With only one recommended stop and a fuel cost around $33, you can manage this trip efficiently. The longest stretch is 66.8 miles on Lucian Adams Freeway, so ensure you have enough fuel before embarking on that segment. Since it's a single-day drive, you have flexibility to depart later if needed, but an early start will make for a more relaxed experience.

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 125.2 miles from San Antonio, TX, or about 2h 14m into the drive.

The longest continuous stretch on this route runs about 66.8 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 55 miles or 57m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 125.2 miles or 2h 14m 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 39m

Traffic, exits, and arrival timing usually matter more near Llano Grande, TX than in the middle of the route.

Before You Leave

Open the route before leaving San Antonio, 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 Antonio, TX

This is one driving day of about 250.5 miles and 4h 33m.

Your first comfortable stop window is around 55 miles from San Antonio, 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 Lucian Adams Freeway for about 66.8 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Mid-route town

Meal stop

Alice, TX

125 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

Jourdanton, TX

Fuel and coffee

A short stop after about 55 miles helps settle the day before fatigue starts building.

Alice, TX

Meal break

The midpoint is around 125.2 miles from San Antonio, TX, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before Lucian Adams Freeway if your tank is already low. That segment runs about 66.8 miles.

Hours: 10 am–5 pm

+12106101160

Visit website

Place data sourced from public business listings. Hours and availability may vary.

Heads-up: tricky spots

5 of 13

5 decision points cluster between mile 0.8 and 247.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

0.8 mi into trip | ~1m in | Tower of the Americas Way

Turn right onto Tower of the Americas Way

Lane positioning matters here

Use the right lane.

69.5 mi into trip | ~1h 12m in | US 281 South

Take the exit onto US 281 South toward US 281 South

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes. Toward US 281 South

160.4 mi into trip | ~2h 52m in | I 69C; US 281 / Falfurrias Expressway

Keep slight left at fork onto I 69C; US 281 / Falfurrias Expressway

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / right lanes.

216.2 mi into trip | ~3h 51m in | I 69C; US 281

Keep slight left at fork onto I 69C; US 281

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes.

247.4 mi into trip | ~4h 25m in

Take the exit toward FM 1015: International Boulevard

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 160 Toward FM 1015: International Boulevard

Fuel & Cost

Regular Gas

$34.31 one way

$68.62 round trip

$3.48/gal 25.4 MPG avg 88 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$3.89	$38.32	$76.65
premium	$4.23	$41.67	$83.34
diesel	$4.80	$47.30	$94.60

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$34

Meals

$25–$50

Total

$59–$84

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 87.6 kg one way. Prices: EIA weekly data, 2026-07-13.

Driving Electric?

About $26 in charging · 0 stops · 67% less CO₂

Vehicle Type	kWh	Stops	DC Fast	Home Charge
Average EV	75.2	0	$26.30	$12.02
Efficient EV	62.6	0	$21.92	$10.02
EV Truck/SUV	100.2	1	$35.07	$16.03

Gas CO2

88 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.

Forecast as of Jul 18, 2026

Origin

San Antonio, TX

Late night in San Antonio on Monday

Local time

12:55 AM

CDT

Current temp

93°F

Partly Sunny

SSE 10 mph 2% chance Live forecast

Flood Warning

Flood Warning issued July 18 at 5:39AM CDT until July 19 at 6:12AM CDT by NWS Austin/San Antonio TX

Flood Warning

Flood Warning issued July 18 at 5:38AM CDT until July 19 at 7:00PM CDT by NWS Austin/San Antonio TX

Destination

Llano Grande, TX

Late night in Llano Grande on Monday

Local time

12:55 AM

CDT

Current temp

97°F

Mostly Sunny

SSE 9 to 17 mph 0% chance Live forecast

Flood Warning

Flood Warning issued July 18 at 5:39AM CDT until July 19 at 6:12AM CDT by NWS Austin/San Antonio TX

Flood Warning

Flood Warning issued July 18 at 5:38AM CDT until July 19 at 7:00PM CDT by NWS Austin/San Antonio TX

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

4 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

4h 33m 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.

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...

1 mi from route ~4 min detour Free near mile 8.6

View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

What kind of drive is this?

This drive is primarily highway, with 72% of the route on main roads. You'll encounter a 66.8-mile stretch on Lucian Adams Freeway, which is the longest continuous section. Expect a mix of highway cruising and surface street navigation as you transition between these main arteries. The profile suggests mostly highway driving, so anticipate longer stretches without frequent exits.

72% highway — fuel and pacing are the main things to plan.

20 navigation steps total — most of the decisions cluster near the start and finish.

Longest single stretch: 66.8 mi on Lucian Adams Freeway.

How Hard Is This Drive?

8/10

This is a straightforward highway drive that stays mostly on Lucian Adams Freeway and South Nueces Street. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.8 miles in near Tower of the Americas Way.

Driving Effort 8/10

Demanding - plan breaks and stay ahead of the key maneuvers

Balances navigation complexity with total wheel time.

This is a demanding drive. With 13 significant decision points across 250.5 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 0.8 miles (Tower of the Americas Way): Lane positioning matters here; at 69.5 miles (US 281 South): Exit ramp - move to the correct lane early. Lane positioning matters here; at 160.4 miles (I 69C; US 281 / Falfurrias Expressway): Highway fork - watch signs carefully. Lane positioning matters here.

Elevation Profile

Mostly flat terrain

649 ft 72 ft

Total Climb

162 ft

Total Descent

739 ft

Highest Point

649 ft

Elevation Range

577 ft

About the Cities

Starting in San Antonio, TX

Full guide →

Founded 1718

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

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 4h 33m. Total distance: 250.5 miles.

Family Friendly

Moderate complexity with 1 natural rest stops along the way.

Solo Traveler

4h 33m drive, comfortable solo distance.

First-Time Driver

Mostly highway driving (72%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 66.8 miles on Lucian Adams Freeway. The full list of main roads is in the Roads section above.

Yes — we found about 16 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.

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 Llano Grande, 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. There are 16 rest areas along the route for bathroom stops.

Yes — San Antonio Missions National Historical Park. See the National Parks section for detour distances and tips on detours.

Possible but tiring. At 4.6 hours each way, an in-and-out day trip would put you behind the wheel for 9.1 hours — manageable with a long break at Llano Grande, TX, but most travelers stay overnight.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.

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Explore more options from San Antonio, TX or browse trips ending in Llano Grande, TX.

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Trip from San Antonio, TX to Llano Grande, TX

Best Time to Leave

Trip Overview

Main Roads

Traffic on I-37

Turn-by-Turn Driving Directions

Trip Plan

Before You Leave

Where to Stop

Pacing Suggestions

Stops Along Your Drive

Brooks County Rest Area

TA

Love's Travel Stop

Love's Travel Stop

Rest Area

Rest Area

Live Oak County Southbound Rest Area

Live Oak County Northbound Rest Area

Picnic Area

Picnic Area

Flying J Travel Center

Pilot Travel Center

Love's Travel Stop

QuikTrip

Pilot Travel Center

Service Plaza

Spanish Governor's Palace

GO RIO San Antonio River Cruises

San Antonio | The Saga

Hemisfair

San Antonio Fire Museum

The Amazing Mirror Maze

Estero Llano Grande State Park

SEA LIFE San Antonio

Heads-up: tricky spots

Fuel & Cost

Travel Intel

San Antonio, TX

Llano Grande, TX

Same local time

4 degrees warmer at arrival

4h 33m on the road

National Parks Near This Route

San Antonio Missions National Historical Park

What kind of drive is this?

How Hard Is This Drive?

Elevation Profile

About the Cities

Starting in San Antonio, TX

Who Is This Route For?

Frequently Asked Questions

Which road carries most of the drive?

Are there rest areas on this route?

Should I avoid arriving after dark?

Is this a good trip with kids?

Where does this route get tricky?

Are there national parks near this route?

Can I do this as a round trip in one go?

How this page is built

Explore More

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