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Several major U.S. airlines, including United, Delta, American Airlines, and others, faced hundreds of flight cancellations over the weekend amid severe weather, with Delta grappling with the most weekend disruption.

As thunderstorms are forecast to continue into Monday, August 3, United Airlines has extended its travel warning for passengers flying to or from 11 Florida airports, as further delays and cancellations are expected.

United Airlines’ Extended Weather Travel Alert Affects 11 Airports

United’s extended weather travel alert informs customers they can rebook their flight free of charge within a six-day period, but only if the original flight date is Monday, August 3, and if their ticket was purchased on or before Saturday, August 1.

“You can reschedule your trip and we’ll waive change fees and fare differences. But, your new flight must be a United flight departing between August 1, 2026 and August 6, 2026. Tickets must be in the same cabin and between the same cities as originally booked,” the carrier writes.

Travelers can utilize the rebooking offer if their flight falls within the eligibility timeframe and is to or from any of the 11 airports impacted by thunderstorms, which are:

• Northwest Florida Beaches International Airport (ECP), Panama City
• Key West International Airport (EYW), Key West
• Fort Lauderdale–Hollywood International Airport (FLL), Fort Lauderdale
• Jacksonville International Airport (JAX), Jacksonville
• Orlando International Airport (MCO), Orlando
• Miami International Airport (MIA), Miami
• Donald J. Trump International Airport (PBI), West Palm Beach
• Pensacola International Airport (PNS), Pensacola
• Southwest Florida International (RSW), Fort Myers
• Sarasota Bradenton International Airport (SRQ), Sarasota/Bradenton
• Tampa International Airport (TPA), Tampa

Travelers should note that West Palm Beach’s hub underwent a name change from Palm Beach International Airport to Donald J. Trump International Airport on July 9. The airport still has the same IATA code (PBI) under its previous name.

However, its code will switch from PBI to DJT on August 18 to align with its new name. Some carriers (including American Airlines) are issuing additional alerts to customers about the upcoming code change to their reservations.

More Monday Thunderstorms May Disrupt Florida Flights

After the Federal Aviation Administration (FAA) warned on Friday, July 31, of potential weekend thunderstorm disruption across Florida, the National Weather Service (NWS) forecasts more rainfall and storms throughout Monday afternoon and evening, notably in the Miami and South Florida area, which may impact air travel.

“Scattered to numerous showers and storms will develop this afternoon into this evening over the interior and east coast metro areas. Localized flooding will remain possible due to slow moving storms and heavy downpours especially over the east coast,” the NWS said.

Given the anticipated weather, additional disruption is likely. Flight tracking website FlightAware shows United’s disruption figures are currently lower than on the weekend, but with more Florida thunderstorms expected, figures could rise as Monday goes on.

United Airlines’ Disruption Numbers As Of 9:00 AM EST

• Cancellations: 114 (3% of its network)
• Delays: 21 (0% of its network)

Though not all flying to/from Florida, United Airlines weekend cancellations and delays were noticeably higher than usual. Its combined cancellation figures on Saturday and Sunday were modest at around 67. In contrast, delays were higher at 1,642.

United’s Alert Follows The Weekend Weather Disruptions At Florida Airports

United’s continued travel alert on Monday follows days of weather-related disruptions at many major U.S. hubs, with airports in Florida particularly impacted. According to FlightAware, Saturday, August 1 to Sunday, August 2 saw thousands of cancellations and delays combined across several of the impacted major Florida airports.

After a disruptive weekend for flights to and from Florida, United Airlines passengers in particular are advised to check with the airline and consider taking up the company’s rebooking offer because the weather disruption is forecast to continue throughout Monday.