How far is Lubbock, TX from San Marcos, TX?
The driving distance from Lubbock, TX to San Marcos, TX is about 402.7 miles (648.1 km), with a travel time of about 07h 20m by car.
- The straight-line flight distance is about 343.6 miles (552.9 km).
- For a round trip, plan for roughly 14h 40m 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 07h 20m.
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 Texas, USA
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 Lubbock and San Marcos.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lubbock and San Marcos.
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1
Start on 19th Street
10 m · 7 sec · 19th Street
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2
Turn left onto Avenue Q
2.9 mi · 3 min · Avenue Q
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3
Continue on Slaton Road
4.8 mi · 6 min · Slaton Road
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4
Continue on East Highway 84
6.9 mi · 7 min · East Highway 84
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5
Continue on Trooper Jerry Don Davis Memorial Highway
4.5 mi · 5 min · Trooper Jerry Don Davis Memorial Highway
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6
Continue on East Highway 84
20 mi · 20 min · East Highway 84
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7
Continue on North US Highway 84
1 mi · 1 min · North US Highway 84
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8
Turn left onto East 15th Street
734 ft · 17 sec · East 15th Street
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9
Turn right onto Ralls Road
1863 ft · 38 sec · Ralls Road
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10
Turn straight onto North Avenue F
1.1 mi · 2 min · North Avenue F
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11
At the end of the road, turn left onto US Highway 84
73.9 mi · 1 hr 14 min · US Highway 84
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12
Keep slight left to continue on I 20 East, US 84 East: Abilene
6.5 mi · 7 min
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13
Take the exit slight right toward SH 70 South, SH 70 Business: Sweetwater, San Angelo
737 ft · 18 sec
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14
Turn slight left onto Southwest Georgia Avenue
624 ft · 17 sec · Southwest Georgia Avenue
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15
Turn right onto Lamar Street
1.2 km · 1 min · Lamar Street
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16
Continue on State Highway 70
10.4 mi · 11 min · State Highway 70
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17
Turn left onto State Highway 153
69 mi · 1 hr 14 min · State Highway 153
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18
Continue on West Walnut Street
1.6 km · 2 min · West Walnut Street
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19
Continue on East Walnut Street
1.5 km · 1 min · East Walnut Street
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20
At the end of the road, turn left
9.4 mi · 11 min
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21
Continue straight
21.5 mi · 25 min
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22
Turn right onto Garmon Drive
1.3 mi · 1 min · Garmon Drive
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23
Continue on US Highway 84 East
29.2 mi · 33 min · US Highway 84 East
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24
Turn right
22.2 mi · 25 min
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25
Continue straight
14.8 mi · 15 min
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26
Merge slight left onto North US Highway 281
79 m · 4 sec · North US Highway 281
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27
Continue on North Key Avenue
2.3 mi · 5 min · North Key Avenue
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28
Continue on South US Highway 183
35.3 mi · 38 min · South US Highway 183
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29
Continue straight
2151 ft · 30 sec
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30
Keep slight left to continue on 183A Toll Road
14.3 mi · 14 min · 183A Toll Road
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31
Continue straight
11.6 mi · 13 min
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32
Take the exit slight right toward I 35 South: San Antonio
2251 ft · 55 sec
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33
Merge slight left onto Purple Heart Trail
2.5 mi · 3 min · Purple Heart Trail
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34
Keep slight left to continue on Purple Heart Trail
31 mi · 35 min · Purple Heart Trail
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35
Take the exit slight right toward TX 80 East, TX 142 East, TX 21 East: Bastrop, Luling
1079 ft · 26 sec
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36
Turn straight onto North Interstate 35
3250 ft · 1 min · North Interstate 35
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37
Turn slight right
144 m · 17 sec
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38
Turn slight right onto East Hopkins Street
1.1 mi · 2 min · East Hopkins Street
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39
Turn right onto North LBJ Drive
64 m · 9 sec · North LBJ Drive
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40
Turn left
128 m · 36 sec
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41
At the end of the road, turn left onto North Guadalupe Street
43 m · 3 sec · North Guadalupe Street
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42
Arrive at your destination
0 m · 1 sec · North Guadalupe Street
Car Route Details
A richer read on the saved driving route between Lubbock and San Marcos.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
US Highway 84
At the end of the road, turn left onto US Highway 84
73.9 mi · 01h 14m
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.
Sunny leaving Lubbock and Partly Sunny near San Marcos.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lubbock to San Marcos?
The road trip is about 402.7 miles (648.1 km) and usually takes 07h 20m 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?
Coleman is a useful midpoint, sitting about 201.4 miles from Lubbock and 201.3 miles from San Marcos.
How much longer is the road route than the straight-line distance?
The direct path is about 343.6 miles (552.9 km), while the road route adds roughly 59.1 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 $53.70 one way or $107.40 round trip. Estimated CO2 is about 126.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Lubbock and Partly Sunny near San Marcos.
Flight Path Map
This map shows the direct air route between Lubbock and San Marcos. Straight-line distance: 343.54 mi (552.87 km).
#1 Lubbock
The second most populous city in Texas and the center of the Lubbock metropolitan area.
| Population | 262,611 |
| Coordinates | 33.5778600, -101.8551700 |
| Altitude | 976 |
| Country | United States |
#2 San Marcos
The most populous city in Hays County, Texas.
| Population | 66,350 |
| Coordinates | 29.8832700, -97.9413900 |
| Altitude | 188 |
| Country | United States |
End: San Marcos (-97.94139, 29.88327)
Estimated Travel Time
Distance: 648 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 25m |
| 40 mph (64.37 km/h) | 10h 04m |
| 50 mph (80.47 km/h) | 08h 03m |
| 60 mph (96.56 km/h) | 06h 42m |
| 70 mph (112.65 km/h) | 05h 45m |
| 80 mph (129 km/h) | 05h 01m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $53.70 | $107.40 |
| Mid-grade | $4.25 | $60.42 | $120.84 |
| Premium | $4.59 | $65.24 | $130.48 |
| Diesel | $3.99 | $56.74 | $113.48 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.