Is there a bus to San Marcos?

No, there is no direct public bus service from Ozona.

No, the primary route is toll-free.

What is the best time to visit?

Spring and early summer are ideal for outdoor activities.

Yes, it is a standard highway route.

Ozona

San Marcos

Driving

Ozona to San Marcos

Updated: 28 May 2026

The journey from Ozona to San Marcos covers approximately 400 kilometers, primarily using Interstate 10 East. You will traverse the scenic Hill Country before reaching the I-35 corridor near San Marcos. The drive typically takes 4 hours, though traffic near San Antonio can add time. San Marcos is known for its university and the San Marcos River, offering a vibrant atmosphere. Plan your departure to avoid peak rush hour traffic in the San Antonio and Austin metro areas.

Total Distance: 400 km driving distance, 360 km straight-line air distance.

Fastest Way

Driving via I-10 is the fastest route, taking 4 hours.

Cheapest Way

Driving your own vehicle is the most economical option.

Compare Ozona to San Marcos Routes

Driving

Direct

Duration

4 hours

Avg Price

$55-$75 in fuel

Operator

Personal Vehicle

Route

I-10 East to I-35 North.

Check traffic reports for the I-10/I-35 interchange before leaving.

Travel Tips

Traffic Management
Avoid the I-35 corridor during morning and evening rush hours.
River Access
Check for river flow conditions before planning water activities.
Parking
Use the university parking garages if visiting the campus.
Dining
Explore the diverse food scene near the downtown square.
Weather
Be prepared for sudden temperature changes in the Hill Country.

Safety Tips

Highway Safety
Maintain a safe following distance on the busy I-35.
Emergency Prep
Keep a roadside kit in your trunk for long-distance travel.
Sun Protection
Wear sunscreen when spending time on the river.
Vehicle Check
Ensure your brakes are in good condition for the highway drive.