Is there a bus to Ontario?

Public transit options exist but are not direct and take significantly longer than driving.

How far is Ontario from Rolling Hills?

It is approximately 55 miles away.

Is the I-10 always busy?

The I-10 is one of the busiest freeways in the country; expect heavy traffic during peak hours.

Metrolink serves the area, but requires multiple transfers from the South Bay.

What is the best time to leave?

Departing between 10 AM and 2 PM is ideal to avoid the worst traffic.

Rolling Hills Estates

Ontario

Driving

Rolling Hills Estates to Ontario

Updated: 31 May 2026

Traveling from Rolling Hills Estates to Ontario covers roughly 55 miles across the Los Angeles basin. You will typically take the I-110 North to the I-105 East, then transition to the I-605 North and finally the I-10 East. This route is heavily trafficked as it connects the South Bay to the Inland Empire. The journey takes approximately 60 to 90 minutes depending on the time of day. Ontario serves as a major logistics and aviation hub for the region.

Total Distance: 88 km driving distance; 72 km straight-line air distance.

Fastest Way

Driving via the I-10 East is the fastest route, usually taking just over an hour.

Cheapest Way

Driving your own car is the most economical option, costing roughly 15 dollars in fuel.

Compare Rolling Hills Estates to Ontario Routes

Driving

Direct

Duration

1 hour 10 mins

Avg Price

12-18 USD

Operator

Personal Vehicle

Route

I-110 N to I-105 E to I-605 N to I-10 E.

Use the HOV lanes if you have at least one passenger to save significant time.

Travel Tips

Traffic Apps
Always check Waze or Google Maps before departing to navigate around accidents on the I-10.
Airport Access
If heading to Ontario International Airport, allow extra time for terminal drop-off traffic.
HOV Lanes
Ensure you have a FasTrak transponder if you plan to use express lanes to bypass congestion.
Parking
Most shopping centers in Ontario offer ample free parking for visitors.
Weather
Ontario can be significantly hotter than the South Bay; dress in layers.

Safety Tips

Aggressive Driving
The I-10 is known for heavy traffic; maintain a safe following distance.
Lane Changes
Use signals early and check blind spots frequently in dense freeway traffic.
Emergency Services
Keep your phone charged and have a roadside assistance number saved.
Night Driving
Ensure your headlights are clean and functional for better visibility on the freeways.