How far is San Antonio, TX from Killeen, TX?
The driving distance from San Antonio, TX to Killeen, TX is about 145.6 miles (234.3 km), with a travel time of about 02h 45m by car.
- The straight-line flight distance is about 125.6 miles (202.1 km).
- For a round trip, plan for roughly 05h 31m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 45m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Travis County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Partly Sunny
Driving Route Map
The map below follows the saved road route between San Antonio and Killeen.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Killeen.
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1
Start on Dolorosa Street
44 m · 5 sec · Dolorosa Street
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2
Continue on West Market Street
1893 ft · 42 sec · West Market Street
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3
Continue on East Market Street
2143 ft · 46 sec · East Market Street
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4
Turn left
111 m · 13 sec
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5
Turn straight onto East Commerce Street
66 m · 13 sec · East Commerce Street
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6
Take the ramp sharp left toward US 281 North, I 37 North
1159 ft · 28 sec
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7
Merge slight left onto William J Bordelon Freeway
1.3 km · 56 sec · William J Bordelon Freeway
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8
Take the exit slight right toward I 35 North: Austin
2907 ft · 1 min
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9
Merge slight left onto North Pan Am Expressway
8.2 mi · 10 min · North Pan Am Expressway
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10
Keep slight left to continue on North Pan Am Expressway
7.4 mi · 8 min · North Pan Am Expressway
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11
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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12
Continue on Interstate Highway 35
1.9 mi · 2 min · Interstate Highway 35
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13
Continue on Purple Heart Trail
47.8 mi · 52 min · Purple Heart Trail
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14
Keep slight right to continue on Purple Heart Trail
29.4 mi · 32 min · Purple Heart Trail
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15
Take the exit slight right toward TX 195 North: Florence, Killeen
1.1 mi · 2 min
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16
Keep slight right to continue on TX 195 North: Florence, Killeen
874 ft · 21 sec
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17
Continue on North Interstate 35
1424 ft · 26 sec · North Interstate 35
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18
Turn left onto State Highway 195
34 mi · 38 min · State Highway 195
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19
Turn slight right
80 m · 10 sec
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20
Turn slight right onto West Veterans Memorial Boulevard
1.4 km · 2 min · West Veterans Memorial Boulevard
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21
Turn left
25 m · 8 sec
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22
Turn right
23 m · 5 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between San Antonio and Killeen.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Purple Heart Trail
Continue on Purple Heart Trail
47.8 mi · 00h 52m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Slight Chance Rain Showers leaving San Antonio and Partly Sunny near Killeen.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Killeen?
The road trip is about 145.6 miles (234.3 km) and usually takes 02h 45m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Sunset Valley is a useful midpoint, sitting about 72.9 miles from San Antonio and 72.7 miles from Killeen.
How much longer is the road route than the straight-line distance?
The direct path is about 125.6 miles (202.1 km), while the road route adds roughly 20 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 12:58 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.42 one way or $38.85 round trip. Estimated CO2 is about 45.7 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around San Antonio and Partly Sunny near Killeen.
Stop Ideas Near Sunset Valley
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Sunset Valley.
Austin
San Marcos Station
Taylor
Killeen, Texas
Flight Path Map
This map shows the direct air route between San Antonio and Killeen. Straight-line distance: 125.59 mi (202.11 km).
#1 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 |
#2 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
End: Killeen (-97.7278, 31.11712)
Estimated Travel Time
Distance: 234 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 51m |
| 40 mph (64.37 km/h) | 03h 38m |
| 50 mph (80.47 km/h) | 02h 54m |
| 60 mph (96.56 km/h) | 02h 25m |
| 70 mph (112.65 km/h) | 02h 04m |
| 80 mph (129 km/h) | 01h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $19.42 | $38.85 |
| Mid-grade | $4.25 | $21.86 | $43.71 |
| Premium | $4.59 | $23.60 | $47.20 |
| Diesel | $3.99 | $20.52 | $41.05 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.