Average driving speed: 69.2 mph
Kilometers per hour: 111.4 km/h
This is based on typical traffic conditions for this route.

• Ontario to Houston drive
• road conditions from Ontario to Houston
• flattest route from Ontario to Houston

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Map of driving directions from ONT to IAH

View a map with driving directions using your preferred map provider: Google Maps, Bing Maps, or MapQuest.

More trip calculations

• Driving Distance
• Cost To Drive
• Reverse Driving Time
• Halfway
• Places To Stop
• Hotels near IAH
• Flight Duration
• Distance To Fly
• airports near IAH
• airlines flying to IAH
• Direct Flight
• Time Zone Change

Driving time from ONT to IAH

How long is the drive from ONT to IAH? The total driving time is 22 hours, 2 minutes.

Your trip begins at LA/Ontario International Airport in Ontario, California. It ends at George Bush Intercontinental Airport in Houston, Texas.

If you're planning a road trip, you might be interested in seeing the total driving distance from ONT to IAH.

You can also calculate the cost to drive from ONT to IAH based on current local gas prices and an estimate of your car's best gas mileage.

Since this is a long drive, you might want to stop halfway and stay overnight in a hotel. You can find the city that is halfway between ONT and IAH.

Planning to fly a plane instead? You might be more interested in calculating the flight time from ONT to IAH.

Driving time calculator

Travelmath helps you find the driving time based on actual directions for your road trip. You can find out how long it will take to drive between any two cities, airports, states, countries, or zip codes. This can also help you plan the best route to travel to your destination. Compare the results with the flight time calculator to see how much longer it might take to drive the distance instead of flying. You can also print out pages with a travel map.