The drive from Eidson Road, TX to San Antonio, TX covers 144.2 miles and takes about 2h 44m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on US Highway 57, Purple Heart Trail, South Pan Am Expressway for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 95.4 miles on US Highway 57.
At current regular gas prices, budget about $21.79 one way before food or hotel costs.
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
72.1 miles from Eidson Road, TX
A natural place for your longest stop of the day
, about 1h 25m into the drive
.
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.
Doable as a same-day drive at 2h 44m. Total distance: 144.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 44m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (73%). Some complex stretches to watch for.
Drive Character
This is a 2h 44m highway drive covering 144.2 miles, with most of the trip on US Highway 57 and Purple Heart Trail. The longest continuous stretch is about 95.4 miles on US Highway 57.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 22 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US Highway 57 is the longest continuous segment at about 95.4 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US Highway 57 and Purple Heart Trail. You will hit about 16 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Madrid.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 144.2 miles you will encounter 16 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (Madrid): Navigation decision point; at 0.1 miles (Balcones Boulevard): Navigation decision point; at 0.7 miles (Calle Potro): Navigation decision point.
Critical Maneuvers
5 of 16 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
4
0 mi into trip|~0m in|Madrid
Turn left onto Madrid
Navigation decision point
4
0.1 mi into trip|~0m in|Balcones Boulevard
Turn right onto Balcones Boulevard
Navigation decision point
5
0.7 mi into trip|~2m in|Calle Potro
Turn right onto Calle Potro
Navigation decision point
5
99.5 mi into trip|~1h 56m in|I 35 / Purple Heart Trail
Merge onto I 35 / Purple Heart Trail
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
143 mi into trip|~2h 42m in
Take the exit toward Spur 536: South Alamo Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 155A
Toward Spur 536: South Alamo Street
Main Roads
Road
Distance
Duration
US Highway 57
95.4 mi
1h 46m
Purple Heart Trail
33.5 mi
33m
South Pan Am Expressway
9.9 mi
11m
East Main Street
1.1 mi
2m
South Bibb Avenue
0.9 mi
1m
Eidson Road
0.6 mi
1m
South Santa Rosa Street
0.5 mi
<1m
South Laredo Street
0.4 mi
<1m
Longest stretch:
US Highway 57
— 95.4 mi, about 1h 46m
Turn-by-Turn Driving Directions
Step-by-step road directions between Eidson Road, TX and San Antonio, TX.
1
Start on Zaragoza Street
103 ft·7 sec·Zaragoza Street
2
Turn left onto Madrid
295 ft·13 sec·Madrid
3
Turn right onto Balcones Boulevard
0.1 mi·31 sec·Balcones Boulevard
4
Continue on Mikulinsk Road
0.2 mi·45 sec·Mikulinsk Road
5
Turn left onto Lago Vista Drive
0.3 mi·1 min·Lago Vista Drive
6
Turn right onto Calle Potro
0.2 mi·45 sec·Calle Potro
7
At end of road, turn left onto Eidson Road
0.6 mi·1 min·Eidson Road
8
Turn right onto Truck Route
0.2 mi·35 sec·Truck Route
9
Turn left onto FM 1021
381 ft·6 sec·El Indio Highway
10
Turn slight right onto South Bibb Avenue
0.9 mi·1 min·South Bibb Avenue
11
Turn right onto US 57
1.1 mi·2 min·East Main Street
12
Turn left onto US 57
95 mi·1 hr 46 min·US Highway 57
13
At end of road, turn left onto Interstate 35 North
0.1 mi·15 sec·Interstate 35 North
14
Take the ramp
0.2 mi·27 sec
15
Merge onto I 35
34 mi·33 min·Purple Heart Trail
Use the straight / slight right lanes.
16
Continue on I 35
9.3 mi·11 min·South Pan Am Expressway
Use the straight / slight left lanes.
17
Keep slight left at fork onto I 35
0.5 mi·40 sec·South Pan Am Expressway
18
Take the exit
0.1 mi·15 sec
Exit 155AToward Spur 536: South Alamo StreetUse the straight / slight right lanes.
19
Turn straight onto South Laredo Street
0.4 mi·45 sec·South Laredo Street
Use the straight / left lanes.
20
Continue on South Santa Rosa Street
0.5 mi·51 sec·South Santa Rosa Street
21
Turn right onto Dolorosa Street
0.3 mi·32 sec·Dolorosa Street
22
Arrive at destination
Dolorosa Street
Trip Plan
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 72.1 miles from Eidson Road, TX, or about 1h 25m into the drive.
The longest continuous stretch on this route runs about 95.4 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 32 miles or 41m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 72.1 miles or 1h 25m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 15m
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 Eidson Road, 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 Eidson Road, TX
This is one driving day of about 144.2 miles and 2h 44m.
Your first comfortable stop window is around 32 miles from Eidson Road, 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 US Highway 57 for about 95.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 72.1 mi from Eidson Road, TX
· 1h 25m into the drive
The midpoint is around 72.1 miles from Eidson Road, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before US Highway 57 if your tank is already low. That segment runs about 95.4 miles.
Arriving in San Antonio, TX
The final approach into San Antonio, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around San Antonio, TX.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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...
7 mi from route
~16 min detour
Free
near mile 139.2
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$21.79 one way
$43.58 round trip
$3.84/gal25.4 MPG avg51 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$23.85
$47.70
premium
$4.54
$25.75
$51.49
diesel
$5.61
$31.84
$63.68
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$22
Meals
$25–$50
Total
$47–$72
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 50.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $15 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
43.3
0
$15.14
$6.92
Efficient EV
36.1
0
$12.62
$5.77
EV Truck/SUV
57.7
0
$20.19
$9.23
Gas CO2
50 kg
EV CO2
17 kg (66% 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 Apr 16, 2026
Origin
Eidson Road, TX
Night
in Eidson Road on Friday
Local time
10:13 PM
CDT
Current temp
64°F
Unavailable
Live forecast
Destination
San Antonio, TX
Night
in San Antonio on Friday
Local time
10:13 PM
CDT
Current temp
90°F
Partly Sunny
SSE 10 mph0% chanceLive forecast
Red Flag Warning
Red Flag Warning issued April 16 at 12:44PM CDT until April 16 at 9:00PM CDT by NWS Amarillo TX
Red Flag Warning
Red Flag Warning issued April 16 at 12:44PM CDT until April 17 at 8:00PM CDT by NWS Amarillo 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
26 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
2h 44m 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.
Frequently Asked Questions
The drive from Eidson Road, TX to San Antonio, TX covers 144.2 miles and takes about 2h 44m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US Highway 57, Purple Heart Trail, South Pan Am Expressway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 72.1 miles from Eidson Road, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $21.79 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This drive requires moderate attention. Across 144.2 miles you will encounter 16 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: near the start (Madrid): Navigation decision point; at 0.1 miles (Balcones Boulevard): Navigation decision point; at 0.7 miles (Calle Potro): Navigation decision point.
The route from Eidson Road, TX to San Antonio, TX does not surface many named destination signs beyond the main corridor.
Yes. Nearby national parks include San Antonio Missions National Historical Park.
How this page is built
Compiled by the Trip.ovh 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.
