Thousands of flights faced delays and cancellations across the United States on Monday as Hurricane Beryl struck the Texas coast.

Over 1,300 flights were canceled and more than 1,000 delayed within, into, or out of the U.S. on Monday, according to FlightAware. United Airlines experienced the most significant impact, canceling over 400 flights—14 percent of its total schedule—followed by Southwest Airlines with over 260 cancellations.

Texas bore the brunt of the disruptions, especially Houston’s George Bush Intercontinental Airport (IAH), which saw more than 520 cancellations, representing 80 percent of its outgoing flights. William P. Hobby Airport (HOU) in Houston canceled over 100 flights, while Dallas Fort Worth International Airport (DFW) canceled several dozen.

To manage the disruptions, major airlines issued flight alerts and waived fare differences for travelers needing to change their flights to and from Texas. This included Delta Air Lines, United Airlines, JetBlue, Southwest Airlines, Spirit Airlines, Frontier Airlines, and American Airlines, which extended its waiver to Arkansas and Louisiana.

George Bush Intercontinental Airport
Houston’s George Bush Intercontinental Airport had 520 flight cancellations due to inclement weather conditions.

Hurricane Beryl, the earliest storm to reach Category 5 status this season, made landfall in Texas early Monday as a Category 1 hurricane about 85 miles southwest of Houston, reported The Associated Press. The storm caused widespread power outages and was expected to weaken to a tropical storm later Monday before becoming a tropical depression on Tuesday as it moved northeast.

Before hitting Texas, Beryl wreaked havoc through the Caribbean, forcing cruise lines to reroute and leading airports on popular islands like Jamaica and Grand Cayman to temporarily close.

Despite the hurricane’s movement, the impact remains significant. Several organizations are aiding relief and recovery efforts in the affected areas.