How long is the drive to Houston?

It is approximately 15 to 16 hours of driving time.

Is Houston safe for tourists?

Like any major city, stick to well-populated areas and use common sense.

What is the best airport in Houston?

George Bush Intercontinental (IAH) is the primary international hub.

Do I need a car in Houston?

Yes, public transit is limited and the city is very spread out.

What is the weather like in Houston?

Hot and humid summers with mild, short winters.

Johnston

Houston

Driving

Johnston to Houston

Updated: 30 May 2026

The journey from Johnston to Houston covers roughly 1,000 miles. You will head south on I-35 through Kansas and Oklahoma, then transition to I-45 in Dallas to reach Houston. This trip typically requires 15 to 16 hours of driving. It is a major corridor for commerce and travel between the Midwest and the Gulf Coast.

Total Distance: Driving distance 1,600 km, Air distance 1,400 km.

Fastest Way

Flying from DSM to IAH takes 5 hours including connections.

Cheapest Way

Driving is the most economical option for families.

Compare Johnston to Houston Routes

Driving

Direct

Duration

15 hours

Avg Price

$200 in fuel

Operator

Personal Vehicle

Route

I-35 S to Dallas, then I-45 S to Houston

Expect heavy traffic once you hit the Houston city limits.

Travel Tips

Humidity
Houston is very humid; dress in breathable fabrics.
Traffic
The I-45 corridor into Houston is notoriously congested; plan accordingly.
Dining
Houston has a world-class food scene; explore the diverse Tex-Mex and Vietnamese options.
Transport
A car is essential in Houston due to the city's massive sprawl.
Events
Check the Houston Livestock Show and Rodeo schedule if visiting in the spring.

Safety Tips

Flooding
Be aware of flash flood risks during heavy rain; never drive through standing water.
Sun Safety
Use high-SPF sunscreen even on cloudy days in the Gulf region.
Navigation
Use GPS with real-time traffic updates to avoid major highway accidents.
Hydration
Keep extra water in your car during the summer months.