Bell County Northbound Rest Area
0 mi from route
Trip from Denison, TX to San Antonio, TX
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Jul 19, 2026 · Editorial standards
Drive Time
6h 16m
Distance
347.9 mi
560 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$48
one way
EV Charging
Unknown
Best Time to Leave
4 AM
6h 4m
★
6 AM
6h 16m
8 AM
6h 42m
10 AM
6h 25m
12 PM
6h 23m
3 PM
6h 27m
5 PM
6h 40m
8 PM
6h 9m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Denison, TX
Wikimedia Commons
San Antonio, TX
Wikimedia Commons
Trip Overview
Denison, TX to San Antonio, TX is 347.9 miles and takes about 6h 16m via I 35, with a fuel budget near $55 and enough daylight to finish in a day. You'll be traveling within the Great Plains region for the entire trip, staying within Texas. This route is primarily highway driving, making it a straightforward option for a single-day trip. Expect a consistent pace for most of the drive, with a budget-friendly fuel cost. Consider this if you need to cover ground efficiently 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
173.9 miles from Denison, TX
A natural place for your longest stop of the day , about 3h 7m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Purple Heart Trail | 99.6 mi | 1h 46m |
| South R L Thornton Freeway | 89.9 mi | 1h 32m |
| I 35 | 55.8 mi | 58m |
| North Central Expressway | 45.7 mi | 49m |
| North Pan Am Expressway | 17 mi | 20m |
| North Sam Rayburn Freeway | 12 mi | 12m |
| North Collins Freeway | 10.1 mi | 10m |
| North Jack Kultgen Expressway | 6.6 mi | 7m |
Longest stretch:
Purple Heart Trail
— 99.6 mi, about 1h 46m
Traffic on I-35
Hour-of-day weekday pattern from 48 FHWA count stations on your route.
Peak
5 PM
~4,090 veh/hr typical
Quietest
2 AM
~671 veh/hr
Peak-to-quiet ratio
6.1×
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 Denison, TX and San Antonio, TX.
1
Start on this road
61 ft
·
9 sec
·
this road
2
Turn left onto US 69
1.1 mi
·
1 min
·
North Austin Avenue
3
Continue on Spur 503
2.0 mi
·
2 min
·
South Eisenhower Parkway
4
Take the exit
0.2 mi
·
31 sec
Toward TX 91: Texoma Parkway
5
Keep slight right at fork
0.2 mi
·
20 sec
Toward TX 91 South: Sherman
6
Turn straight onto TX 91
1.6 mi
·
2 min
·
Texoma Parkway
7
Turn right onto FM 691
1.2 mi
·
1 min
·
Grayson Drive
8
Turn left onto North Sam Rayburn Freeway
0.1 mi
·
15 sec
·
North Sam Rayburn Freeway
9
Take the ramp
0.2 mi
·
24 sec
Toward US 75 South
10
Merge onto US 75
12 mi
·
12 min
·
North Sam Rayburn Freeway
11
Continue on US 75
10 mi
·
10 min
·
North Collins Freeway
12
Continue on US 75
45 mi
·
48 min
·
North Central Expressway
Use the straight / slight right lanes.
13
Take the exit
501 ft
·
12 sec
Exit 284C
Toward Downtown, Good-Latimer Expressway
Use the slight left lane.
14
Continue on North Central Expressway
0.7 mi
·
1 min
·
North Central Expressway
Use the left / straight lanes.
15
Turn right onto Elm Street
304 ft
·
10 sec
·
Elm Street
16
Turn left onto North Pearl Expressway
0.2 mi
·
28 sec
·
North Pearl Expressway
Use the straight lane.
17
Turn right onto Young Street
0.1 mi
·
19 sec
·
Young Street
18
Turn left onto South Harwood Street
315 ft
·
8 sec
·
South Harwood Street
Use the left lane.
19
Turn right onto Canton Street
0.4 mi
·
47 sec
·
Canton Street
20
Take the ramp
0.3 mi
·
38 sec
Toward I 30 West
21
Keep slight left at fork
0.1 mi
·
14 sec
Toward I 35E South, I 35E North: Waco, Denton
22
Keep slight left at fork
221 ft
·
5 sec
Toward I 35E North, I 35E South: Denton, Waco
Use the straight / slight right lanes.
23
Keep slight left at fork
0.4 mi
·
30 sec
Toward I 35E South: Waco
Use the left / right lanes.
24
Continue on I 35E
0.5 mi
·
44 sec
·
South R L Thornton Freeway
25
Continue on I 35E
89 mi
·
1 hr 31 min
·
South R L Thornton Freeway
Exit 426
Toward Dallas Zoo
Use the straight / slight right lanes.
26
Continue on I 35; US 77
6.6 mi
·
7 min
·
North Jack Kultgen Expressway
Use the straight / slight right lanes.
27
Continue on I 35
38 mi
·
39 min
·
Purple Heart Trail
Use the straight / slight right lanes.
28
Keep slight left at fork onto I 35
56 mi
·
58 min
·
I 35
Use the straight / slight right lanes.
29
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.
30
Continue on I 35
1.7 mi
·
1 min
·
Interstate Highway 35
Use the straight / slight right lanes.
31
Continue on I 35
12 mi
·
12 min
·
Purple Heart Trail
Use the straight / slight right lanes.
32
Continue on I 35
10.0 mi
·
11 min
·
North Pan Am Expressway
Use the straight / slight right lanes.
33
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.
34
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.
35
Take the exit
0.1 mi
·
16 sec
Exit 157A
Toward Lexington Avenue, Main Avenue, San Pedro Avenue
Use the slight right lane.
36
Turn straight onto East Elmira Street
526 ft
·
17 sec
·
East Elmira Street
Use the left / straight lanes.
37
Turn left onto North Main Avenue
0.2 mi
·
18 sec
·
North Main Avenue
Use the left / straight lanes.
38
Enter roundabout onto Navarro Street
159 ft
·
3 sec
·
Navarro Street
39
Continue on Navarro Street
111 ft
·
2 sec
·
Navarro Street
40
Keep slight right at fork onto North Main Avenue
0.4 mi
·
51 sec
·
North Main Avenue
Use the slight left / slight right lanes.
41
Turn right onto West Travis Street
222 ft
·
10 sec
·
West Travis Street
42
Turn left onto North Flores Street
0.2 mi
·
20 sec
·
North Flores Street
43
Continue on Military Plaza
392 ft
·
15 sec
·
Military Plaza
44
Turn left onto Dolorosa Street
327 ft
·
8 sec
·
Dolorosa Street
45
Arrive at destination
Dolorosa Street
Trip Plan
Given the 6h 16m estimated drive time, leaving Denison, TX in the morning should allow you to reach San Antonio with plenty of daylight to spare. The 347.9-mile distance is manageable for a single day, so you don't need to plan an overnight stop unless you prefer a more relaxed pace. Keep an eye on your fuel levels, especially during the longest stretch of 99.6 miles on Purple Heart Trail, and budget around $55 for gas. There's one recommended stop, so plan to stretch your legs and refuel midway if needed.
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 173.9 miles from Denison, TX, or about 3h 7m 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 77 miles or 1h 27m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 173.9 miles or 3h 7m 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 7m
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 Denison, 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 Denison, TX
This is one driving day of about 347.9 miles and 6h 16m.
Your first comfortable stop window is around 77 miles from Denison, 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
174 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 77 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 173.9 miles from Denison, 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
QuikTrip
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
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
Flying J Travel Center
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
Minuteman Press
0.5 mi from route
Love's Travel Stop
0.9 mi from route
SoPac Trail Rest Area
1.9 mi from route
Pilot Travel Center
2.3 mi from route
Service Plaza
2.4 mi from route
Petro Stopping Centers
2.4 mi from route
Pilot Travel Center
2.5 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 websiteCity Park
4.6
★ ★ ★ ★ ★
Early in the drive, right off the route
Early stretch
0.7 mi from route
~2 min detour
Dallas, Texas
Hours: 10 am–5 pm
+19724823055
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 305 decision points cluster between mile 73.6 and 346.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
73.6 mi into trip
|
~1h 21m in
Take the exit toward Downtown, Good-Latimer Expressway
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Exit 284C
Toward Downtown, Good-Latimer Expressway
9
75.7 mi into trip
|
~1h 25m in
Keep slight left at fork toward I 35E North, I 35E South: Denton, Waco
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 35E North, I 35E South: Denton, Waco
8
266.3 mi into trip
|
~4h 43m 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
8
346.1 mi into trip
|
~6h 13m 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
346.7 mi into trip
|
~6h 13m 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
$47.65 one way
$95.30 round trip
$3.48/gal
25.4 MPG avg
122 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $3.89 | $53.23 | $106.45 |
| premium | $4.23 | $57.87 | $115.74 |
| diesel | $4.80 | $65.69 | $131.38 |
Estimated Tolls: $3.65
Central Expressway
(45.7 mi)
$3.65
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
$48
Tolls
$4
Meals
$25–$50
Total
$76–$101
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 121.7 kg one way. Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $37 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 104.4 | 1 | $36.53 | $16.70 |
| Efficient EV | 87 | 0 | $30.44 | $13.92 |
| EV Truck/SUV | 139.2 | 1 | $48.71 | $22.27 |
Gas CO2
122 kg
EV CO2
41 kg (66% 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.
Origin
Denison, TX
Morning in Denison on Sunday
Local time
10:25 AM
CDT
Current temp
90°F
Mostly Sunny
S 5 to 10 mph
11% chance
Live forecast
Flash Flood Warning
Flash Flood Warning issued July 17 at 6:02AM CDT until July 17 at 9:00AM CDT by NWS San Angelo TX
Flash Flood Warning
Flash Flood Warning issued July 17 at 5:03AM CDT until July 17 at 7:00AM CDT by NWS San Angelo TX
Destination
San Antonio, TX
Morning in San Antonio on Sunday
Local time
10:25 AM
CDT
Current temp
90°F
Partly Sunny
SSE 5 to 10 mph
4% chance
Live forecast
Flash Flood Warning
Flash Flood Warning issued July 17 at 6:02AM CDT until July 17 at 9:00AM CDT by NWS San Angelo TX
Flash Flood Warning
Flash Flood Warning issued July 17 at 5:03AM CDT until July 17 at 7:00AM CDT by NWS San Angelo TX
96°F
Troy, TX
174 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
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
6h 16m 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.
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...
5 mi from route
~12 min detour
Free
near mile 167.9
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 347.9
View on nps.gov
Park data from the National Park Service API. Alerts update every 2 hours.
What kind of drive is this?
About 70% of this 347.9-mile route is highway. You'll encounter a longest stretch of 99.6 miles on Purple Heart Trail before transitioning to other roads. Expect a mostly highway profile, which means you'll likely see a good number of exits and merges as you pass through various towns and cities. The latter portion of your drive will involve more surface roads.
70% highway — fuel and pacing are the main things to plan.
45 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?
8/10
This is a straightforward highway drive that stays mostly on Purple Heart Trail and South R L Thornton Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 73.6 miles in.
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 30 significant decision points across 347.9 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 73.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 75.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 266.3 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Mostly flat terrain
776 ft
458 ft
Total Climb
627 ft
Total Descent
708 ft
Highest Point
776 ft
~24.8 mi in
Elevation Range
319 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Denison, TX and San Antonio, TX, road signs point toward Downtown, Denton, Waco and Dallas Zoo.
Downtown
73.6 mi in
|
~1h 21m
Denton
75.6 mi in
|
~1h 25m
Waco
75.7 mi in
|
~1h 25m
Dallas Zoo
76.6 mi in
|
~1h 26m
|
via I 35E
About the Cities
Starting in Denison, TX
Full guide →Founded 1872
Denison is in the Blackland Prairie region.
Top landmarks
- • Eisenhower Birthplace State Historic Site — building in Denison, Grayson County, Texas
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 6h 16m. Total distance: 347.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 16m drive, plan rest stops for pacing.
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.
Expect about $3.65 in tolls one way, starting with Central Expressway. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes — we found about 38 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 38 rest areas along the route for bathroom stops.
The main spots that need attention: at 73.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 75.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 266.3 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Waco Mammoth National Monument and San Antonio Missions National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.3 hours each way, a round trip means 12.5 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.
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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