How far is New Boston, TX from San Antonio, TX?
The driving distance from New Boston, TX to San Antonio, TX is about 448.9 miles (722.4 km), with a travel time of about 06h 54m by car.
- The straight-line flight distance is about 368.1 miles (592.4 km).
- For a round trip, plan for roughly 13h 49m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 06h 54m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in the U.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Driving Route Map
The map below follows the saved road route between New Boston and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between New Boston and San Antonio.
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1
Start on Northeast Front Street
149 m · 18 sec · Northeast Front Street
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2
Turn right onto West Street
651 ft · 19 sec · West Street
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3
Turn slight left onto US Highway 82 West
2.4 mi · 4 min · US Highway 82 West
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4
Take the exit slight right toward I 30 West: Dallas
1636 ft · 40 sec
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5
Merge slight left
152.8 mi · 2 hr 38 min
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6
Take the exit slight right toward I 35E: Denton, Waco
3065 ft · 1 min
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7
Keep slight left to continue on I 35E South, I 35E North: Waco, Denton
607 ft · 15 sec
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8
Keep slight left to continue on I 35E North, I 35E South: Denton, Waco
67 m · 5 sec
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9
Keep slight left to continue on I 35E South: Waco
1915 ft · 30 sec
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10
Continue on South R L Thornton Freeway
2866 ft · 44 sec · South R L Thornton Freeway
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11
Continue on South R L Thornton Freeway
89.3 mi · 1 hr 32 min · South R L Thornton Freeway
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12
Continue on North Jack Kultgen Expressway
6.6 mi · 8 min · North Jack Kultgen Expressway
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13
Continue on Purple Heart Trail
37.9 mi · 39 min · Purple Heart Trail
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14
Keep slight left
55.8 mi · 59 min
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15
Keep slight left to continue on Purple Heart Trail
49.8 mi · 55 min · Purple Heart Trail
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16
Continue on Interstate Highway 35
1.7 mi · 2 min · Interstate Highway 35
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17
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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18
Continue on North Pan Am Expressway
10 mi · 12 min · North Pan Am Expressway
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19
Keep slight left to continue on North Pan Am Expressway
6.4 mi · 8 min · North Pan Am Expressway
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20
Keep slight left to continue on North Pan Am Expressway
2907 ft · 41 sec · North Pan Am Expressway
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21
Take the exit slight right toward Lexington Avenue, Main Avenue, San Pedro Avenue
684 ft · 17 sec
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22
Turn straight onto East Elmira Street
526 ft · 17 sec · East Elmira Street
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23
Turn left onto North Main Avenue
830 ft · 19 sec · North Main Avenue
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24
Enter the roundabout and take exit 2 toward Navarro Street
49 m · 3 sec · Navarro Street
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25
Exit the roundabout onto Navarro Street
34 m · 2 sec · Navarro Street
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26
Keep slight right to continue on North Main Avenue
2181 ft · 52 sec · North Main Avenue
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27
Turn right onto West Travis Street
68 m · 11 sec · West Travis Street
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28
Turn left onto North Flores Street
807 ft · 20 sec · North Flores Street
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29
Continue on Military Plaza
119 m · 16 sec · Military Plaza
-
30
Turn left onto Dolorosa Street
100 m · 8 sec · Dolorosa Street
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31
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between New Boston and San Antonio.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 30 West
Merge slight left
153 mi · 02h 38m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving New Boston and Partly Sunny near San Antonio.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from New Boston to San Antonio?
The road trip is about 448.9 miles (722.4 km) and usually takes 06h 54m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Hillsboro is a useful midpoint, sitting about 214.5 miles from New Boston and 234.4 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 368.1 miles (592.4 km), while the road route adds roughly 80.8 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $59.86 one way or $119.72 round trip. Estimated CO2 is about 140.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around New Boston and Partly Sunny near San Antonio.
Stop Ideas Near Hillsboro
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Historic City Hall
Whitney City Hall
Town Hall Estates Nursing
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Hillsboro.
Cleburne
Waco, TX
McGregor
Fort Worth Central Station
Flight Path Map
This map shows the direct air route between New Boston and San Antonio. Straight-line distance: 368.09 mi (592.38 km).
#1 New Boston
City in Texas, United States
| Population | 4,568 |
| Coordinates | 33.4598400, -94.4154800 |
| Altitude | 109 |
| Country | United States |
#2 San Antonio
The seventh most populous city in the United States and the center of the San Antonio metropolitan area.
| Population | 1,567,118 |
| Coordinates | 29.4241200, -98.4936300 |
| Altitude | 198 |
| Country | United States |
End: Dolorosa Street (-98.493645, 29.424163)
Estimated Travel Time
Distance: 722 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 14h 57m |
| 40 mph (64.37 km/h) | 11h 13m |
| 50 mph (80.47 km/h) | 08h 58m |
| 60 mph (96.56 km/h) | 07h 28m |
| 70 mph (112.65 km/h) | 06h 24m |
| 80 mph (129 km/h) | 05h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $59.86 | $119.72 |
| Mid-grade | $4.25 | $67.35 | $134.70 |
| Premium | $4.59 | $72.72 | $145.44 |
| Diesel | $3.99 | $63.25 | $126.50 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.