The IAH ground stop is expected to last until 10:30 p.m.
The ground stop at HOU was lifted at 7:50 p.m., but departures are still delayed. Officials say the average delay is about 1 hour and 9 minutes.
Airport officials advise travelers to contact their airline directly for the most up-to-date information on their flight.
You can keep track of flight delays on the Houston Airport System website.