FAA Ground Stop Halts 14,000-Plus Flights as 17 Cruise Ships Sail On Time

More than 14,000 U.S. flights were cancelled or delayed on Friday after the FAA issued a nationwide ground stop at 3:54 p.m. ET — and 17 cruise ships are still scheduled to sail from Florida ports the next morning, with no line planning to hold departures.

The Federal Aviation Administration grounded all U.S. air traffic citing an ongoing communications outage. It's only the second nationwide ground stop since the September 11, 2001 terrorist attacks. Officials stressed this isn't believed to be malicious, but no cause has been identified and a cyberattack hasn't been ruled out. The investigation is ongoing.

"There has been a temporary telecommunications outage — out of an abundance of caution all flights have been halted. Every flight has been accounted for and international flights will be handled on a case by case basis," the FAA posted on X at 5:02 p.m., just over an hour after the stop took effect.

Homeland Security Secretary Markwayne Mullin added his own reassurance while speaking to reporters at the White House. "There is no reason to be concerned about your loved ones if they're flying or anything like that, I just wanted to make sure everybody is at ease about that," he said. "The first thing is the safety of everybody that is flying, we are assured that everybody is safe."

In short: passengers are safe, but schedules are not. The ground stop covers incoming and outgoing flights, and flights already in the air may continue only to their next destination — no connections.

How bad is the damage at cruise-gateway airports?

By 8 p.m. ET Friday, FlightAware showed more than 9,800 delayed flights and more than 5,000 cancellations in the U.S., with numbers shifting every few minutes. The pain concentrates at exactly the airports that feed cruise homeports.

• Miami International (MIA): 253 delays and 72 cancellations — 41% of outgoing traffic.
• Fort Lauderdale-Hollywood (FLL): 44% of flights impacted, with 193 delays and 33 cancellations.
• Orlando International (MCO): 47% of departures impacted, 232 delays and 60 cancellations.
• Los Angeles International (LAX): 47% of departing flights impacted; Discovery Princess sails from Los Angeles Saturday.
• Houston's George Bush Intercontinental: 48% of traffic impacted, with four cruise ships due at Port of Galveston Saturday.

"If you're flying today, please check with your airline for your flight status before leaving for the airport. Thank you for your patience and understanding," MIA posted on X at 4:33 p.m.

Roughly four in ten flights at the three Florida cruise-gateway airports were knocked off schedule — on the eve of one of the busiest embarkation days of the week.

Will the ships wait? Almost certainly not.

The terminals nearest those airports — PortMiami, Port Everglades and Port Canaveral — have 17 ships departing Saturday, November 14. Seven sail from PortMiami, four from Port Everglades, six from Port Canaveral.

Cruise lines do not typically delay departures for flight disruptions, and no line had issued any statement or official comment on the ground stop. Booked guests should plan to reach their terminals as scheduled, or risk missing the ship entirely. For sellers of travel, that means a weekend of rebooking calls and missed-connection claims.

Driving to the port works for some guests. It won't for travelers headed to distant homeports, and airlines have only begun rolling out travel waivers with inconsistent policies.

Debarking guests face the same problem in reverse, with post-cruise flights delayed or cancelled. Even after the ground stop lifts, clearing the backlog will likely take several days — a caveat worth attaching to every reassurance about next week's sailings.