Bell County Northbound Rest Area
0 mi from route
Trip from Glenn Heights, TX to San Antonio, TX
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Jul 20, 2026 · Editorial standards
Drive Time
4h 38m
Distance
258.2 mi
416 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$35
one way
EV Charging
Unknown
Best Time to Leave
4 AM
4h 25m
★
6 AM
4h 39m
8 AM
5h 5m
10 AM
4h 48m
12 PM
4h 45m
3 PM
4h 49m
5 PM
5h 4m
8 PM
4h 30m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Glenn Heights, TX
Alfo Medeiros
San Antonio, TX
Wikimedia Commons
Trip Overview
Glenn Heights, TX to San Antonio, TX is 258.2 miles and takes about 4h 38m via Purple Heart Trail and I 35, with a fuel budget near $40 and enough daylight to finish in a day. This drive takes you from the Great Plains region of North Texas down into the Great Plains of Central Texas. Expect a mix of highway cruising and some surface road driving on this relatively straightforward trip. With a recommended one-day drive time and a moderate fuel cost, this route is a practical option for getting between these two Texas cities.
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
129.1 miles from Glenn Heights, TX
A natural place for your longest stop of the day , about 2h 16m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Purple Heart Trail | 99.6 mi | 1h 46m |
| I 35E | 72.7 mi | 1h 13m |
| I 35 | 55.8 mi | 58m |
| North Pan Am Expressway | 17 mi | 20m |
| North Jack Kultgen Expressway | 6.6 mi | 7m |
| Ovilla Road | 1.9 mi | 3m |
| Interstate Highway 35 | 1.7 mi | 1m |
| South Hampton Road | 1.2 mi | 2m |
Longest stretch:
Purple Heart Trail
— 99.6 mi, about 1h 46m
Traffic on I-35
Hour-of-day weekday pattern from 88 FHWA count stations on your route.
Peak
5 PM
~3,763 veh/hr typical · worst 4,358
Quietest
2 AM
~649 veh/hr
Peak-to-quiet ratio
5.8×
busier at peak than in the quiet hours
12a
6a
noon
6p
11p
Averaged across 51 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 Glenn Heights, TX and San Antonio, TX.
1
Start on South Hampton Road
1.2 mi
·
2 min
·
South Hampton Road
2
At end of road, turn left onto FM 664
1.9 mi
·
3 min
·
Ovilla Road
3
Turn right onto Plaza Drive
0.1 mi
·
18 sec
·
Plaza Drive
Use the right lane.
4
At end of road, turn right onto North Interstate 35E
0.1 mi
·
12 sec
·
North Interstate 35E
5
Take the ramp
0.3 mi
·
17 sec
Toward I 35E South
Use the straight / slight left lanes.
6
Merge onto I 35E
73 mi
·
1 hr 13 min
·
I 35E
Use the straight / slight right lanes.
7
Continue on I 35; US 77
6.6 mi
·
7 min
·
North Jack Kultgen Expressway
Use the straight / slight right lanes.
8
Continue on I 35
38 mi
·
39 min
·
Purple Heart Trail
Use the straight / slight right lanes.
9
Keep slight left at fork onto I 35
56 mi
·
58 min
·
I 35
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 35; US 290
50 mi
·
54 min
·
Purple Heart Trail
Toward 32nd Street, Dean Keeton Street
Use the slight left lane.
11
Continue on I 35
1.7 mi
·
1 min
·
Interstate Highway 35
Use the straight / slight right lanes.
12
Continue on I 35
12 mi
·
12 min
·
Purple Heart Trail
Use the straight / slight right lanes.
13
Continue on I 35
10.0 mi
·
11 min
·
North Pan Am Expressway
Use the straight / slight right lanes.
14
Keep slight left at fork onto I 35
6.4 mi
·
8 min
·
North Pan Am Expressway
Toward I 35 South
Use the straight / slight right lanes.
15
Keep slight left at fork onto I 35
0.6 mi
·
41 sec
·
North Pan Am Expressway
Toward I 35 South: Lower Level, Laredo
Use the slight left lane.
16
Take the exit
0.1 mi
·
16 sec
Exit 157A
Toward Lexington Avenue, Main Avenue, San Pedro Avenue
Use the slight right lane.
17
Turn straight onto East Elmira Street
526 ft
·
17 sec
·
East Elmira Street
Use the left / straight lanes.
18
Turn left onto North Main Avenue
0.2 mi
·
18 sec
·
North Main Avenue
Use the left / straight lanes.
19
Enter roundabout onto Navarro Street
159 ft
·
3 sec
·
Navarro Street
20
Continue on Navarro Street
111 ft
·
2 sec
·
Navarro Street
21
Keep slight right at fork onto North Main Avenue
0.4 mi
·
51 sec
·
North Main Avenue
Use the slight left / slight right lanes.
22
Turn right onto West Travis Street
222 ft
·
10 sec
·
West Travis Street
23
Turn left onto North Flores Street
0.2 mi
·
20 sec
·
North Flores Street
24
Continue on Military Plaza
392 ft
·
15 sec
·
Military Plaza
25
Turn left onto Dolorosa Street
327 ft
·
8 sec
·
Dolorosa Street
26
Arrive at destination
Dolorosa Street
Trip Plan
To make the most of this 4h 38m drive, consider leaving Glenn Heights in the morning to avoid the busiest traffic near Dallas and when entering San Antonio. The route is easily manageable in a single day, allowing for flexibility in your schedule. Keep an eye on your fuel gauge, especially during the 99.6-mile stretch on Purple Heart Trail, as services might be less frequent than on the interstate. Your estimated fuel cost is around $40, so plan accordingly for 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 129.1 miles from Glenn Heights, TX, or about 2h 16m into the drive.
The longest continuous stretch on this route runs about 99.6 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 57 miles or 1h 1m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 129.1 miles or 2h 16m 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 44m
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 Glenn Heights, 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 Glenn Heights, TX
This is one driving day of about 258.2 miles and 4h 38m.
Your first comfortable stop window is around 57 miles from Glenn Heights, 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 Purple Heart Trail for about 99.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
129 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 57 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 129.1 miles from Glenn Heights, 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 99.6 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Stops Along Your Drive
Picked by where they fit in your drive — first break, midpoint reset, final stretch.
Service Plaza
0.1 mi from route
Hill County Northbound Rest Area
0.1 mi from route
Buc-ee's
0.1 mi from route
Flying J Travel Center
0.1 mi from route
Walburg Travel Center & Food Court
0.1 mi from route
Love's Travel Stop
0.1 mi from route
Petro Stopping Centers
0.1 mi from route
Buc-ee's
0.1 mi from route
Service Plaza
0.1 mi from route
QuikTrip
0.1 mi from route
Ascent Travel Center
0.1 mi from route
TA
0.2 mi from route
Flying J Travel Plaza
0.2 mi from route
Pilot Travel Center
0.2 mi from route
Hill County Southbound Rest Area
0.2 mi from route
QuikTrip
0.2 mi from route
Road Ranger
0.2 mi from route
Marlstone Retail Center
0.2 mi from route
Love's Travel Stop
0.2 mi from route
Love's Travel Stop
0.2 mi from route
Buc-ee's
0.2 mi from route
Pilot Travel Center
0.3 mi from route
TA
0.3 mi from route
Service Plaza
0.3 mi from route
Bell County Southbound Rest Area
0.4 mi from route
QuikTrip
0.4 mi from route
Pilot Travel Center
2.3 mi from route
Petro Stopping Centers
2.4 mi from route
Spanish Governor's Palace
4.5
★ ★ ★ ★ ★
Near the end, right off the route
Home stretch
0.1 mi from route
San Antonio, Texas
Hours: 9 am–5 pm
+12102077527
Visit websiteGO RIO San Antonio River Cruises
4.6
★ ★ ★ ★ ★
Near the end, right off the route
Home stretch
0.4 mi from route
~1 min detour
San Antonio, Texas
Hours: 10 am–10 pm
+12102274746
Visit websiteSan Antonio | The Saga
4.5
★ ★ ★ ★ ★
Near the end, right off the route
Home stretch
0 mi from route
San Antonio, Texas
Hours: 9–9:30 pm
+12102259800
Visit websiteHemisfair
4.7
★ ★ ★ ★ ★
Near the end, right off the route
Home stretch
0.5 mi from route
~1 min detour
San Antonio, Texas
Hours: 5 am–12 pm
+12107094750
Visit websiteSan Antonio Fire Museum
4.9
★ ★ ★ ★ ★
Near the end, right off the route
Home stretch
0.6 mi from route
~1 min detour
San Antonio, Texas
Hours: 10 am–3:30 pm
+12103907236
Visit websiteThe Amazing Mirror Maze
4.4
★ ★ ★ ★ ☆
Near the end, right off the route
Home stretch
0.4 mi from route
~1 min detour
San Antonio, Texas
Hours: 10:30 am–8 pm
+12102242288
Visit websiteCultural Activities Center
4.8
★ ★ ★ ★ ★
Around the midpoint, right off the route
Halfway reset
0.4 mi from route
~1 min detour
Temple, Texas
Hours: 8:30 am–4 pm
+12547739926
Visit websiteSEA LIFE San Antonio
4.1
★ ★ ★ ★ ☆
Near the end, right off the route
Home stretch
0.4 mi from route
~1 min detour
San Antonio, Texas
Hours: 10 am–5 pm
+12106101160
Visit websitePlace data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 175 decision points cluster between mile 3.2 and 257.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
3.2 mi into trip
|
~6m in
|
North Interstate 35E
At end of road, turn right onto North Interstate 35E
Complex interchange - multiple decisions in a short stretch
8
176.7 mi into trip
|
~3h 6m in
|
I 35; US 290 / Purple Heart Trail
Keep slight left at fork onto I 35; US 290 / Purple Heart Trail toward 32nd Street, Dean Keeton Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward 32nd Street, Dean Keeton Street
7
250.1 mi into trip
|
~4h 27m in
|
I 35 / North Pan Am Expressway
Keep slight left at fork onto I 35 / North Pan Am Expressway toward I 35 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 35 South
8
256.5 mi into trip
|
~4h 35m in
|
I 35 / North Pan Am Expressway
Keep slight left at fork onto I 35 / North Pan Am Expressway toward I 35 South: Lower Level, Laredo
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward I 35 South: Lower Level, Laredo
8
257.1 mi into trip
|
~4h 35m in
Take the exit toward Lexington Avenue, Main Avenue, San Pedro Avenue
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 157A
Toward Lexington Avenue, Main Avenue, San Pedro...
Fuel & Cost
Regular Gas
$35.37 one way
$70.73 round trip
$3.48/gal
25.4 MPG avg
90 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $3.89 | $39.50 | $79.01 |
| premium | $4.23 | $42.95 | $85.90 |
| diesel | $4.80 | $48.75 | $97.51 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$35
Meals
$25–$50
Total
$60–$85
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 90.3 kg one way. Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $27 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 77.5 | 0 | $27.11 | $12.39 |
| Efficient EV | 64.6 | 0 | $22.59 | $10.33 |
| EV Truck/SUV | 103.3 | 1 | $36.15 | $16.52 |
Gas CO2
90 kg
EV CO2
30 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.
Origin
Glenn Heights, TX
Late night in Glenn Heights on Monday
Local time
2:19 AM
CDT
Current temp
74°F
Partly Cloudy
S 10 mph
1% chance
Live forecast
Flood Warning
Flood Warning issued July 18 at 3:19AM CDT until July 22 at 7:46AM CDT by NWS Corpus Christi TX
Flood Warning
Flood Warning issued July 18 at 3:19AM CDT until July 21 at 3:48AM CDT by NWS Corpus Christi TX
Destination
San Antonio, TX
Late night in San Antonio on Monday
Local time
2:19 AM
CDT
Current temp
77°F
Mostly Cloudy
SSE 10 mph
0% chance
Live forecast
Flood Warning
Flood Warning issued July 18 at 3:19AM CDT until July 22 at 7:46AM CDT by NWS Corpus Christi TX
Flood Warning
Flood Warning issued July 18 at 3:19AM CDT until July 21 at 3:48AM CDT by NWS Corpus Christi 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
3 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 38m 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.
Waco Mammoth National Monument
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...
6 mi from route
~14 min detour
Free
near mile 80.1
View on nps.gov
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 258.2
View on nps.gov
Park data from the National Park Service API. Alerts update every 2 hours.
What kind of drive is this?
About 60% of this 258.2-mile route is on highways. You'll experience a long stretch of 99.6 miles on Purple Heart Trail, which is likely to offer more varied driving conditions than pure interstate. The remaining portion will involve I 35E and I 35, so be prepared for a significant amount of highway driving, which often includes merging traffic and numerous exits as you approach San Antonio.
60% highway — fuel and pacing are the main things to plan.
26 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 99.6 mi on Purple Heart Trail.
How Hard Is This Drive?
7/10
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 3.2 miles in near North Interstate 35E.
Driving Effort
7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 17 significant decision points across 258.2 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 3.2 miles (North Interstate 35E): Complex interchange - multiple decisions in a short stretch; at 176.7 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 250.1 miles (I 35 / North Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
829 ft
479 ft
Total Climb
798 ft
Total Descent
821 ft
Highest Point
829 ft
~166 mi in
Elevation Range
350 ft
About the Cities
Starting in Glenn Heights, TX
Full guide →Founded 1969
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 4h 38m. Total distance: 258.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 38m drive, comfortable solo distance.
Frequently Asked Questions
The longest stretch is about 99.6 miles on Purple Heart Trail. The full list of main roads is in the Roads section above.
Yes — we found about 29 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 29 rest areas along the route for bathroom stops.
The main spots that need attention: at 3.2 miles (North Interstate 35E): Complex interchange - multiple decisions in a short stretch; at 176.7 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 250.1 miles (I 35 / North Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Waco Mammoth National Monument and 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 9.3 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.
Was this helpful?
Thanks for your feedback!
Your tip has been submitted. Thanks!
/500
Recent Tips
·
Explore More
Continue From San Antonio, TX
More from Glenn Heights, TX
More trips to San Antonio, TX
Explore more options from Glenn Heights, TX or browse trips ending in San Antonio, TX.
Looking for more statewide routes? Browse TX road trips.