Origin
Boerne, TX
Late night in Boerne on Sunday
Local time
4:59 AM
CDT
Current temp
60°F
Unavailable
Live forecast
Trip from Boerne, TX to San Antonio, TX
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
38m
Distance
31 mi
50 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$5
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 36m
★
6 AM
0h 39m
8 AM
0h 45m
10 AM
0h 41m
12 PM
0h 41m
3 PM
0h 41m
5 PM
0h 45m
8 PM
0h 37m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Boerne, TX
Wikimedia Commons
San Antonio, TX
Wikimedia Commons
Trip Overview
Boerne to San Antonio is 31 miles and takes about 38 minutes via I 10, with a fuel budget near $5 and enough daylight to finish in a day. This is a very short, straightforward drive primarily along the interstate, making it ideal for a quick hop between two points in the Great Plains region of Texas. Given its brevity and focus on highway travel, you won't encounter many opportunities for extended stops, but the proximity to San Antonio means you'll arrive with plenty of time to explore the city. Plan for this drive to be a simple transition rather than a scenic journey.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 10 | 24.5 mi | 27m |
| North Main Street | 2.2 mi | 4m |
| McDermott Freeway | 1.7 mi | 2m |
| North Pecos-La Trinidad | 0.7 mi | 1m |
| Dolorosa Street | 0.5 mi | <1m |
| Interstate 10 West | 0.4 mi | <1m |
| East Blanco Road | <0.1 mi | <1m |
Longest stretch:
I 10
— 24.5 mi, about 27m
Turn-by-Turn Driving Directions
Step-by-step road directions between Boerne, TX and San Antonio, TX.
1
Start on RM 474
66 ft
·
8 sec
·
East Blanco Road
2
Turn left onto US 87 Bus
2.2 mi
·
4 min
·
North Main Street
3
Turn left
0.3 mi
·
28 sec
4
Continue on Interstate 10 West
0.4 mi
·
32 sec
·
Interstate 10 West
5
Take the ramp
0.3 mi
·
39 sec
6
Merge onto I 10; US 87
7.0 mi
·
7 min
·
I 10; US 87
Use the straight / slight right lanes.
7
Keep slight right at fork onto I 10; US 87
17 mi
·
19 min
·
I 10; US 87
Use the straight / slight right lanes.
8
Keep slight right at fork onto I 10; US 87
1.7 mi
·
2 min
·
McDermott Freeway
9
Take the exit
0.5 mi
·
1 min
Exit 569C
Toward Santa Rosa Street, Downtown
Use the slight right lane.
10
Turn straight onto North Pecos-La Trinidad
0.2 mi
·
16 sec
·
North Pecos-La Trinidad
11
Keep slight right at fork onto North Pecos-La Trinidad
0.6 mi
·
1 min
·
North Pecos-La Trinidad
Use the straight lane.
12
Turn left onto Dolorosa Street
0.5 mi
·
55 sec
·
Dolorosa Street
Use the straight / left lanes.
13
Arrive at destination
Dolorosa Street
Heads-up: tricky spots
5 of 85 decision points cluster between mile 3.2 and 30.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
3.2 mi into trip
|
~6m in
|
I 10; US 87
Merge onto I 10; US 87
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
10.2 mi into trip
|
~13m in
|
I 10; US 87
Keep slight right at fork onto I 10; US 87
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
8
29.3 mi into trip
|
~35m in
Take the exit toward Santa Rosa Street, Downtown
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 569C
Toward Santa Rosa Street, Downtown
6
29.9 mi into trip
|
~36m in
|
North Pecos-La Trinidad
Keep slight right at fork onto North Pecos-La Trinidad
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight lane.
6
30.5 mi into trip
|
~37m in
|
Dolorosa Street
Turn left onto Dolorosa Street
Lane positioning matters here
Use the straight / left lanes.
Fuel & Cost
Regular Gas
$4.68 one way
$9.37 round trip
$3.84/gal
25.4 MPG avg
11 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $5.13 | $10.25 |
| premium | $4.54 | $5.53 | $11.07 |
| diesel | $5.61 | $6.84 | $13.69 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$5
Estimated CO2 emission: 10.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 64% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 9.3 | 0 | $3.25 | $1.49 |
| Efficient EV | 7.8 | 0 | $2.71 | $1.24 |
| EV Truck/SUV | 12.4 | 0 | $4.34 | $1.98 |
Gas CO2
11 kg
EV CO2
4 kg (64% 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.
Destination
San Antonio, TX
Late night in San Antonio on Sunday
Local time
4:59 AM
CDT
Current temp
68°F
Mostly Cloudy
SSE 5 to 15 mph
1% chance
Live forecast
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
8 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
38m 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.
What kind of drive is this?
This drive is heavily highway-focused, with 85% of the route on the interstate. You'll spend most of your time on I 10, experiencing a consistent, fast-paced journey. The longest uninterrupted stretch you'll encounter is 24.5 miles on I 10, so expect minimal interruptions. The route primarily utilizes I 10 and the McDermott Freeway, offering a predictable driving experience as you head towards San Antonio. It's a practical commute rather than a winding exploration.
85% highway — fuel and pacing are the main things to plan.
13 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 24.5 mi on I 10.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 10 and North Main Street. 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 I 10; US 87.
Driving Effort
8/10
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 8 decision points packed into just 31 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 38m.
Where does it get tricky?
The main spots that need attention: at 3.2 miles (I 10; US 87): Merge point - match speed before joining. Lane positioning matters here; at 10.2 miles (I 10; US 87): Highway fork - watch signs carefully. Lane positioning matters here; at 29.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
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.
On the drive from Boerne, TX to San Antonio, TX, road signs begin pointing toward Downtown along the way.
Downtown
29.3 mi in
|
~35m
About the Cities
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 38m. Total distance: 31 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
38m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (85%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 24.5 miles on I 10. The full list of main roads is in the Roads section above.
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.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 3.2 miles (I 10; US 87): Merge point - match speed before joining. Lane positioning matters here; at 10.2 miles (I 10; US 87): Highway fork - watch signs carefully. Lane positioning matters here; at 29.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — San Antonio Missions National Historical Park. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at San Antonio, TX before heading back.
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, and NPS for national parks. See our methodology for refresh cadence and limitations.
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