Air traffic controllers working without pay begin to call out sick, leading to flight cancellations and delays nationwide

(NEW YORK) — A week into the government shutdown, air traffic controller sick calls are beginning to cause delays and cancellations as a number of airport towers and control facilities don’t have enough staff to properly handle all flights.

Controllers are considered essential workers and are exempt from being furloughed during a shutdown. An estimated 13,294 controllers will continue to work without pay during the shutdown, according to the Department of Transportation’s shutdown plan.

California’s Burbank Airport was hit hardest Monday and was forced to close its tower from 4:15 p.m. through 10 p.m. PDT because it had no air traffic controllers, according to FAA documents.

The airport remained open but flights were delayed on average more than 2.5 hours. Controllers from a San Diego facility handled traffic into and out of Burbank during the tower closure.

“Clearance is closed. Ground’s closed. Local’s closed. The tower is closed due to staffing. You just contact SoCal on the 1-800 number in the green book for your clearance,” a controller can be heard informing pilots on air traffic control recordings, referring to a published listing of airport information.

Several other ATC facilities also experienced staffing issues on Monday. The Philadelphia TRACON (Terminal Radar Approach Control), Denver Center, Detroit TRACON, Indianapolis Center, Phoenix Airport, and the Phoenix TRACON also had staffing advisories from the Federal Aviation Administration. More than 600 flights Monday were delayed in and out of the Denver Airport and over 200 at Phoenix Airport.

“There have been increased staffing shortages across the system. When that happens, the FAA slows traffic into some airports to ensure safe operations,” the agency said in a statement to ABC News.

The National Air Traffic Controllers Association (NATCA), the union representing controllers nationwide, said it’s working with the FAA to mitigate any disruptions in the national airspace.

“It is normal for a few air traffic controllers to call in sick on any given day, and this is the latest example of how fragile our aviation system is in the midst of a national shortage of these critical safety professionals,” NATCA said in a statement to ABC News.

While ATC staffing is at critical levels across the country, it’s rare for it to have impacts on flights due to staffing shortages in places like Arizona or California, according to FAA documents reviewed by ABC News.

Transportation Secretary Sean Duffy said at a press conference on Monday that sick calls from controllers have been spread out across the region and not from one specific airport or ATC facility, but acknowledged that staffing levels at certain facilities are down as much as 50 percent.

“We don’t have one facility that has had long-term issues with the sick leave. But that is concerning to me. And if someone has to take sick leave, to drive Uber to make the difference, those are decisions they’re going to make themselves. But of course, that’s concerning for us,” Duffy said.

“These are high-skilled, high-performing, safety-driven professionals that I don’t want them driving for work,” Duffy added. “I don’t want them finding a second job to pay the bills. I want them to get paid for the work they’re doing today, keeping our planes in the air and our skies safe.”

Duffy met with controllers handling Newark’s airspace Monday and said they expressed concerns over the added financial stress of the shutdown in an already demanding job.

“The consistent message from these controllers was they’re not just now thinking about the airspace and the jobs they have to do in these towers or TRACON centers across the country. They’re thinking about, ‘am I going to get a paycheck?’” Duffy said. “So now what they think about as they’re controlling our airspace is, ‘how am I going to pay my mortgage? How do I make my car payment? I have a couple kids at home, how do I put food in the table? I’m working six days a week — do I have to take a second job and drive Uber when I’m already exhausted from doing a job that’s already stressful to think about.’”

Air traffic controllers will receive a partial paycheck on October 14 but will not be paid on October 28 if the shutdown continues, according to NATCA. Under the Government Employee Fair Treatment Act of 2019 (GEFTA), controllers will receive back pay after the shutdown ends.

The staffing crisis also led to some heated political exchanges on social media. California Governor Newsom posted on X, saying, “Thanks, @realDonaldTrump! Burbank Airport has ZERO air traffic controllers from 4:15pm to 10pm today because of YOUR government shutdown.”

Transportation Secretary Sean Duffy fired back at Newsom, posting, “News Flash! Your Democrat friends shut down the government because they want to make Americans pay the health care for illegals. And no state has more illegals than California! You care more about illegals than our hard-working American air traffic controllers. If you’re looking for someone to blame, look in the mirror – we all know it’s your favorite thing to do.”

Another aspect of air travel impacted by the shutdown, which is on the verge of running out of funding, is the Essential Air Service (EAS) program. Duffy said the EAS program, which provides airlines with subsidies to fly to rural areas that otherwise wouldn’t have air service because the route wouldn’t be profitable, will run out of funding on Sunday, Oct. 12.

“Air carriers that continue to operate EAS flights beyond October 12, 2025, would do so at their own risk as the Department may not be able to pay the contracted subsidy,” the DOT said in a notice. The notice also says that if carriers continue to operate during the funding lapse, they could be reimbursed on a “pro rata basis,” meaning they might not receive the full amount owed.

The biggest impacts would be felt in Alaska, where air travel is the primary mode of transportation. Alaska Senator Lisa Murkowski posted on X, saying, “The critical assistance these routes provide makes a disruption on any scale detrimental to these communities, and the local air carriers serving them.”

Murkowski said she is working with the administration to find a solution. 

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