Most of Houston is not walkable; a car or ride-share is necessary.

Which airport is closer to downtown?

William P. Hobby (HOU) is closer to downtown than IAH.

How long is the drive?

The drive takes approximately 28 hours of pure driving time.

Are there direct flights?

Yes, United Airlines offers direct flights from SFO to IAH.

What is the best time to visit?

October through April offers the most comfortable temperatures.

Napa

Houston

Flight Driving

Napa to Houston

Updated: 30 May 2026

Traveling from Napa to Houston involves a long-distance journey across the American Southwest. The most efficient route is flying from San Francisco International Airport to George Bush Intercontinental Airport. Driving requires navigating I-5 S and I-10 E, covering over 2,800 kilometers. Houston is a major hub for energy and space exploration. Plan for a full day of travel if choosing to drive.

Total Distance: Driving distance 2,850 km, air distance 2,600 km.

Fastest Way

Direct flight from SFO to IAH is 4 hours 15 minutes.

Cheapest Way

Booking a flight at least 21 days in advance is the most cost-effective method.

Compare Napa to Houston Routes

	Flight Direct	Driving Direct
Duration	4 hours 15 mins	28 hours
Avg Price	$300-$700	$450-$700 in fuel
Operator	United Airlines	Personal Vehicle
Route	SFO to IAH	I-5 S to I-10 E
Tip	United operates a major hub at IAH, offering frequent connections.	The I-10 stretch through West Texas is long and isolated; fuel up often.

Travel Tips

Airport Transit
Use the METRO bus service from IAH to downtown Houston.
Weather
Houston is prone to heavy rain; always carry an umbrella.
Dining
Explore the diverse food scene in the Montrose neighborhood.
Traffic
Avoid the I-610 loop during morning and evening rush hours.
Booking
Check Southwest Airlines for flights into Hobby Airport (HOU) as an alternative.

Safety Tips

Flood Awareness
Be cautious of low-lying roads during heavy rain events.
Driving
Houston highways have high-speed traffic; stay alert for aggressive drivers.
Heat Safety
Stay hydrated during the summer months when temperatures exceed 95 degrees.
Personal Safety
Use ride-sharing apps when traveling at night in unfamiliar areas.