There is a parking garage and an open air lot at Houston Hobby Airport.
The airport parking information line is (281) 233-1730, or tune to 1610 AM as you approach the airport for parking information.
The parking garage is located close to the terminal and is connected by walkway.
The open air lot - the ecopark lot - is at 7800 Airport Boulevard, a short walk from the terminal. It provides a cheaper parking option than the parking garage.
Houston Hobby has a free Cell Phone Waiting Lot located just off Airport Boulevard. Follow the purple signs to the 'Passenger Pick Up Waiting Lot'.