Tropical Storm Harvey forced the two most important airports in Houston to close and about 100 flights to be canceled, airport authorities posted on their respective Web pages.
The facilities that had to close were the William P. Hobby Airport and the George Bush Intercontinental Airport, considered the largest in Houston and from which flights leave for different countries in Europe, Africa, the Middle East and South America.
In all, more than 3,000 flights have been canceled over the weekend due to the "catastrophic" flooding in southeast Texas and which on Sunday particularly hit the city of Houston, the fourth largest in the US with 2 million inhabitants and where the flood water could reach 1 meter (3 feet) deep.
According to the flight tracking program Flight Aware, on Sunday 2,082 flights have been canceled on Sunday, added to the 1,100 suspended on Saturday and the 200 that were unable to take off on Friday due to the Harvey alerts.
Harvey first made landfall in Rockport, located northeast of Corpus Christi, at 10:00 pm Friday as a Category 4 hurricane with maximum sustained winds of 215 kph (133 mph).
Though it has now weakened to a tropical storm, Harvey was the most powerful hurricane to hit the United States in 12 years.