Trip from Deer Park, TX to San Antonio, TX

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Jul 19, 2026 · Editorial standards

Drive Time

3h 50m

Distance

213 mi

343 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$29

one way

EV Charging

Unknown

Best Time to Leave

Save up to 39 min

4 AM

3h 37m ★

6 AM

3h 50m

8 AM

4h 16m

10 AM

3h 59m

12 PM

3h 57m

3 PM

4h 0m

5 PM

4h 14m

8 PM

3h 43m

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

Best Time Drive vs Fly

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Deer Park, TX

Wikimedia Commons

San Antonio, TX

Wikimedia Commons

Trip Overview

If you are planning a trip from Deer Park to San Antonio, expect a straightforward journey covering 216.1 miles. You should budget about 3 hours and 17 minutes of time behind the wheel, making this a very manageable one-day trip. With a fuel cost estimate of $32, it is an economical route for a quick getaway. Since both cities are located within the Great Plains region, you will experience a consistent landscape throughout your travel. You will start your journey on Highway 225, also known as TX 225 West or the La Porte Freeway, before transitioning toward your destination. Whether you are heading out for business or leisure, the drive is short enough that you won't need to plan for an overnight split.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

1 planned break

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

106.5 miles from Deer Park, TX

A natural place for your longest stop of the day , about 1h 55m into the drive .

Main Roads

Road	Distance	Duration
Katy Freeway	174.7 mi	3h 1m
I 10	12 mi	12m
Gulf Freeway	7.8 mi	9m
Pasadena Freeway	5.2 mi	5m
East Commerce Street	4.3 mi	7m
La Porte Freeway	2.5 mi	2m
Jose Lopez Freeway	1.6 mi	1m
East Loop South	1 mi	1m

Longest stretch: Katy Freeway — 174.7 mi, about 3h 1m

Traffic on I-10

Hour-of-day weekday pattern from 26 FHWA count stations on your route.

Peak

2 PM

~2,432 veh/hr typical · worst 3,335

Quietest

2 AM

~346 veh/hr

Peak-to-quiet ratio

7×

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 Deer Park, TX and San Antonio, TX.

Start on Center Street

0.4 mi · 56 sec · Center Street

Use the straight lane.

Turn left onto Highway 225

0.5 mi · 52 sec · Highway 225

Take the ramp

0.3 mi · 44 sec

Toward TX 225 West

Merge onto TX 225

0.3 mi · 22 sec · La Porte Freeway

Continue on TX 225

5.2 mi · 5 min · Pasadena Freeway

Use the straight lane.

Continue on TX 225

2.2 mi · 2 min · La Porte Freeway

Use the straight / slight right lanes.

Take the exit

0.5 mi · 1 min

Toward I 610 West Use the left / straight lanes.

Merge onto I 610

1.0 mi · 1 min · East Loop South

Use the straight / slight right lanes.

Take the exit

0.2 mi · 23 sec

Exit 32B Toward I 45 North, TX 35 South: Alvin, Downtown Use the straight / slight right lanes.

Keep slight right at fork

0.3 mi · 38 sec

Toward I 45 North: Downtown Use the slight left / slight right lanes.

Merge onto I 45

7.8 mi · 9 min · Gulf Freeway

Use the straight / slight right lanes.

Take the exit

0.1 mi · 17 sec

Exit 48B Toward I 10 West: San Antonio Use the slight left / straight lanes.

Merge onto I 10; US 90

175 mi · 3 hr 1 min · Katy Freeway

Use the straight / slight right lanes.

Keep slight left at fork onto I 10; US 90; TX 130

12 mi · 12 min · I 10; US 90; TX 130

Use the straight / slight right lanes.

Keep slight left at fork onto I 10; US 90; TX 130

0.8 mi · 51 sec · 90th Infantry Division Highway

Use the straight / slight right lanes.

Continue on I 10; US 90

1.6 mi · 1 min · Jose Lopez Freeway

Use the straight / slight right lanes.

Take the exit

0.1 mi · 19 sec

Exit 579 Toward Commerce Street, Houston Street Use the straight / slight right lanes.

Turn straight onto Interstate 10 East

0.3 mi · 38 sec · Interstate 10 East

Turn right onto East Houston Street

0.2 mi · 20 sec · East Houston Street

Turn slight left onto East Commerce Street

4.3 mi · 7 min · East Commerce Street

Turn left onto Military Plaza

392 ft · 15 sec · Military Plaza

Turn left onto Dolorosa Street

327 ft · 8 sec · Dolorosa Street

Arrive at destination

Dolorosa Street

Trip Plan

Given the 3 hour and 17 minute duration, you have plenty of flexibility to plan your departure time to avoid the worst local traffic. While one stop is sufficient for a trip of this length, plan it strategically to break up the turn-heavy nature of the drive. Keep your $32 fuel budget in mind when filling up, as local road driving can sometimes be less fuel-efficient than consistent highway cruising. Since you are dealing with local routes rather than major interstates, keep a close eye on your GPS to stay on track through the various turns. Taking advantage of the short travel time allows you to arrive in San Antonio with enough energy to start your visit immediately.

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 106.5 miles from Deer Park, TX, or about 1h 55m into the drive.

The longest continuous stretch on this route runs about 174.7 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 47 miles or 53m in

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

Halfway reset

Around 106.5 miles or 1h 55m 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 6m

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 Deer Park, 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 Deer Park, TX

This is one driving day of about 213 miles and 3h 50m.

Your first comfortable stop window is around 47 miles from Deer Park, 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 Katy Freeway for about 174.7 miles.

Where to Stop

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

Mid-route town

Meal stop

Houston, TX

107 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

Houston, TX

Fuel and coffee

A short stop after about 47 miles helps settle the day before fatigue starts building.

Houston, TX

Meal break

The midpoint is around 106.5 miles from Deer Park, TX, which is a good place for a longer meal and fuel stop.

Before the longest stretch

1.3 mi from route

Love's Travel Stop

Hours: 9 am–10 pm

+12102271373

Visit website

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 9 and 207.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

9 mi into trip | ~11m in

Take the exit toward I 610 West

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

Use the left / straight lanes. Toward I 610 West

10.4 mi into trip | ~13m in

Take the exit toward I 45 North, TX 35 South: Alvin, Downtown

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 32B Toward I 45 North, TX 35 South: Alvin, Downtown

10.6 mi into trip | ~14m in

Keep slight right at fork toward I 45 North: Downtown

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight left / slight right lanes. Toward I 45 North: Downtown

18.7 mi into trip | ~23m in

Take the exit toward I 10 West: San Antonio

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

Use the slight left / straight lanes. Exit 48B Toward I 10 West: San Antonio

207.9 mi into trip | ~3h 41m in

Take the exit toward Commerce Street, Houston 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. Exit 579 Toward Commerce Street, Houston Street

Fuel & Cost

Regular Gas

$29.17 one way

$58.35 round trip

$3.48/gal 25.4 MPG avg 75 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$3.89	$32.59	$65.17
premium	$4.23	$35.43	$70.86
diesel	$4.80	$40.22	$80.44

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$29

Meals

$25–$50

Total

$54–$79

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

Estimated CO2 emission: 74.5 kg one way. Prices: EIA weekly data, 2026-07-13.

Driving Electric?

About $22 in charging · 0 stops · 67% less CO₂

Vehicle Type	kWh	Stops	DC Fast	Home Charge
Average EV	63.9	0	$22.37	$10.22
Efficient EV	53.3	0	$18.64	$8.52
EV Truck/SUV	85.2	1	$29.82	$13.63

Gas CO2

75 kg

EV CO2

25 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

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

Deer Park, TX

Late night in Deer Park on Sunday

Local time

5:59 AM

CDT

Current temp

77°F

Slight Chance Showers And Thunderstorms then Partly Cloudy

S 5 to 10 mph 18% chance Live forecast

Flash Flood Warning

Flash Flood Warning issued July 18 at 6:14PM CDT until July 18 at 8:15PM CDT by NWS Lubbock TX

Flash Flood Warning

Flash Flood Warning issued July 18 at 6:05PM CDT until July 18 at 6:45PM CDT by NWS Midland/Odessa TX

Destination

San Antonio, TX

Late night in San Antonio on Sunday

Local time

5:59 AM

CDT

Current temp

76°F

Partly Cloudy

SSE 5 to 10 mph 1% chance Live forecast

Flash Flood Warning

Flash Flood Warning issued July 18 at 6:14PM CDT until July 18 at 8:15PM CDT by NWS Lubbock TX

Flash Flood Warning

Flash Flood Warning issued July 18 at 6:05PM CDT until July 18 at 6:45PM CDT by NWS Midland/Odessa 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

1 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

3h 50m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

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 213

View on nps.gov

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

What kind of drive is this?

Prepare for a turn-heavy local drive rather than a mindless highway cruise. Because the highway share for this specific route is 0%, you should expect to navigate local roads for the duration of your trip. There is no single long stretch of interstate to settle into, as the longest uninterrupted distance on Highway 225 is 0 miles. This means the driving experience is more active, requiring your full attention as you navigate through various turns. It is a practical route that favors local connectivity over high-speed transit, so adjust your expectations for a slower, more deliberate pace on the road.

96% highway — fuel and pacing are the main things to plan.

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

Longest single stretch: 174.7 mi on Katy Freeway.

How Hard Is This Drive?

10/10

This is a straightforward highway drive that stays mostly on Katy Freeway and I 10. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 9 miles in.

Driving Effort 10/10

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 16 significant decision points across 213 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 9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 10.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 10.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Elevation Profile

Mostly flat terrain

649 ft 25 ft

Total Climb

650 ft

Total Descent

26 ft

Highest Point

649 ft

~213 mi in

Elevation Range

624 ft

About the Cities

Starting in Deer Park, TX

Full guide →

Founded 1948

Arriving 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 3h 50m. Total distance: 213 miles.

Family Friendly

Moderate complexity with 1 natural rest stops along the way.

Solo Traveler

3h 50m drive, comfortable solo distance.

First-Time Driver

Mostly highway driving (96%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 174.7 miles on Katy Freeway. The full list of main roads is in the Roads section above.

Yes — we found about 30 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 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. There are 30 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 3.8 hours each way, an in-and-out day trip would put you behind the wheel for 7.7 hours — manageable with a long break at San Antonio, 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 Deer Park, TX or browse trips ending in San Antonio, TX.

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Trip from Deer Park, TX to San Antonio, TX

Best Time to Leave

Trip Overview

Main Roads

Traffic on I-10

Turn-by-Turn Driving Directions

Trip Plan

Before You Leave

Where to Stop

Pacing Suggestions

Stops Along Your Drive

Road Ranger

Flying J Travel Center

Guadalupe County Westbound Rest Area

Guadalupe County Eastbound Rest Area

Buc-ee's

Road Ranger

Roady's Truck Stops

Buc-ee's

Flying J Travel Center

Pilot Travel Center

Flying J Travel Center

Pilot Travel Center

Love's Travel Stop

Love's Travel Stop

QuikTrip

QuikTrip

Petro Stopping Centers

Colorado County Eastbound Rest Area

Colorado County Westbound Rest Area

Love's Travel Stop

Jud's Travel Center

Amigos Country Corner

TA

Love's Travel Stop

TA

Super Travel Center

Love's Travel Stop

Service Plaza

Love's Travel Stop

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

SEA LIFE San Antonio

San Antonio River Lock & Dam

Heads-up: tricky spots

Fuel & Cost

Travel Intel

Deer Park, TX

San Antonio, TX

Same local time

1 degrees cooler at arrival

3h 50m 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 Deer Park, TX

Arriving 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

Continue From San Antonio, TX

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