Origin
San Antonio, TX
Late night in San Antonio on Tuesday
Local time
5:22 AM
CDT
Current temp
70°F
Unavailable
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
5h 40m
Distance
311 mi
501 km
Drive Score
10/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$47
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
San Antonio, TX
Wikimedia Commons
Oak Point, TX
Jeff Stapleton
San Antonio, TX to Oak Point, TX is 311 miles and takes about 5h 40m via Purple Heart Trail and I 35E, with a fuel budget near $47 and enough daylight to finish in a day. This drive takes you from the Great Plains region of Texas to another part of the same region, offering a mixed driving experience. Given its duration and the fact that it's entirely within Texas, this is a straightforward, single-day trip. You'll spend a good portion of your time on major highways, making it an efficient route for getting from point A to point B.
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
155.5 miles from San Antonio, TX
A natural place for your longest stop of the day , about 2h 49m into the drive .
| Road | Distance | Duration |
|---|---|---|
| Purple Heart Trail | 188.3 mi | 3h 18m |
| I 35E | 62.5 mi | 1h 6m |
| North Stemmons Freeway | 24.3 mi | 27m |
| North Pan Am Expressway | 15.6 mi | 18m |
| South Jack Kultgen Expressway | 6.6 mi | 7m |
| West Eldorado Parkway | 2.4 mi | 4m |
| Oak Grove Parkway | 2.1 mi | 3m |
| Lewisville Lake Toll Bridge | 2.1 mi | 3m |
Step-by-step road directions between San Antonio, TX and Oak Point, TX.
Start on Dolorosa Street
Continue on West Market Street
Continue on East Market Street
Turn left
Turn straight onto East Commerce Street
Take the ramp
Merge onto I 37; US 281
Take the exit
Merge onto I 35
Keep slight left at fork onto North Pan Am Expressway
Continue on I 35
Continue on I 35
Continue on I 35
Keep slight right at fork onto I 35; US 290
Continue on I 35
Continue on I 35; US 77
Keep slight right at fork onto I 35E
Keep slight right at fork onto I 35E
Take the exit
Turn straight onto South Stemmons Freeway
Turn right onto West Swisher Road
Continue on LLTB
Continue on West Eldorado Parkway
Turn left onto FM 720
Turn left onto McCormick Road
Turn left onto Yacht Club Road
Arrive at destination
With a total drive time of under 6 hours, this route is easily manageable in a single day, allowing for flexibility in your departure time. It's a good idea to start your journey in San Antonio with a full tank of gas, as the longest stretch on the Purple Heart Trail is quite substantial at 188.3 miles. While the drive is relatively short, plan for at least one stop to stretch your legs and refuel if necessary, especially given the $47 estimated fuel cost. Keep an eye on traffic conditions as you get closer to the Dallas-Fort Worth metroplex, which is where Oak Point is located.
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.
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 68 miles or 1h 17m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 155.5 miles or 2h 49m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 34m
Traffic, exits, and arrival timing usually matter more near Oak Point, TX than in the middle of the route.
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 311 miles and 5h 40m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
156 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.
A short stop after about 68 miles helps settle the day before fatigue starts building.
The midpoint is around 155.5 miles from San Antonio, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Purple Heart Trail if your tank is already low. That segment runs about 188.3 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 0.9 and 277.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Take the ramp toward US 281 North, I 37 North
Multiple destination signs - pick the right one
Take the exit toward I 35 North: Austin
Exit ramp - move to the correct lane early. Lane positioning matters here
Keep slight left at fork onto North Pan Am Expressway toward I 35: Austin
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight right at fork onto I 35E toward I 35E: Dallas
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight right at fork onto I 35E / North Stemmons Freeway toward I 35E North: Denton
Highway fork - watch signs carefully. Lane positioning matters here
Regular Gas
$46.99 one way
$93.99 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $51.44 | $102.87 |
| premium | $4.54 | $55.53 | $111.05 |
| diesel | $5.61 | $68.66 | $137.33 |
Estimated Tolls: $0.15
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$47
Tolls
$0
Meals
$25–$50
Total
$72–$97
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 108.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $33 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 93.3 | 1 | $32.65 | $14.93 |
| Efficient EV | 77.8 | 0 | $27.21 | $12.44 |
| EV Truck/SUV | 124.4 | 1 | $43.54 | $19.90 |
Gas CO2
109 kg
EV CO2
36 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.
Current conditions at both ends of the drive.
Origin
Late night in San Antonio on Tuesday
Local time
5:22 AM
CDT
Current temp
70°F
Unavailable
Destination
Late night in Oak Point on Tuesday
Local time
5:22 AM
CDT
Current temp
78°F
Unavailable
84°F
Troy, TX
156 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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
Worth a detour if your schedule allows.
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...
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...
Park data from the National Park Service API. Alerts update every 2 hours.
This route offers a mixed drive, with 38% of it being highway driving. You'll encounter the Purple Heart Trail for a significant stretch, including the longest uninterrupted segment of 188.3 miles. As you progress, the drive will transition from the Purple Heart Trail to I 35E and North Stemmons Freeway, indicating a shift towards more urbanized and potentially faster-paced highway travel. Expect a blend of open road and more congested freeway conditions, especially as you approach your destination.
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.9 miles in.
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 311 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 0.9 miles: Multiple destination signs - pick the right one; at 1.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 10.7 miles (North Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here.
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
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 5h 40m. Total distance: 311 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 40m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
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, and NPS for national parks. See our methodology for refresh cadence and limitations.
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