San Diego International Airport holiday travel. Photo by Chris StoneSan Diego International Airport on Nov. 22, 2023. (File photo by Chris Stone/Times of San Diego)

An estimated 80 flights were cancelled out of San Diego  International Airport over the weekend, and  that number continued to climb Monday.

Flight delays and cancellations imposed by the Trump administration on Friday have left travelers scrambling or stranded.

According to FlightAware some 10,000 flights nationwide were cancelled over the weekend and all of the Southland’s airports were hit with delays and cancellations.

As of early Monday morning FlightAware reported 36 outbound flights cancelled at San Diego’s airport.

The ongoing chaos of cancellations and flight delays has been exacerbated by staffing issues as some air-traffic controllers skip work — since they aren’t being paid during the ongoing federal government shutdown.

Controllers are considered essential workers and have been instructed to continue working despite the shutdown. But after going without paychecks for nearly a month, some have taken second jobs or are calling in sick, compounding existing staffing shortages, National Air Traffic Controllers Association officials told reporters.

Federal transportation officials said this has led to “staffing triggers” at air traffic facilities nationally, leading to “strain on the system.”

To combat the shortages and avoid safety issues, U.S. Transportation Secretary Sean Duffy announced Wednesday that capacity would be reduced at 40 high-volume airports through at least Friday.

According to a DOT statement issued Thursday night, flight capacity at the affected airports would be cut by 4% through Monday, 6% on Tuesday, 8% Thursday and 10% by next Friday.

As of 7 a.m. Sunday, 21 flights had been delayed at San Diego International Airport and another 50 had been canceled, according to FlightAware.

The website said 12,063 flights were delayed nationwide and 1,695 were canceled.

In addition to capacity reductions, the Federal Aviation Administration is also limiting commercial space launches and re-entries to the hours of 10 p.m. to 6 a.m. local time. Parachute operations and photo missions near affected airports were also being prohibited.

Airports in San Diego, Los Angeles and Ontario are among those impacted by the capacity cuts, but airfields not among the 40 on the list could still see ripple-effect impacts on flight operations.

San Diego International Airport is the third busiest airfield in California and 25th in the nation.

Airlines warn passengers to expect delays

United Airlines posted a message on its website stating, “We’re making updates to our schedule and will let you know if your flight is affected as soon as possible, but anyone flying between Nov. 6 and 13 can request a refund or reschedule for free.”

Southwest Airlines posted a notice saying “the vast majority” of its customers will not be affected, but said anyone with flights booked through Wednesday can adjust their travel plans at no cost, “or receive a refund if they choose not to travel, regardless of whether their flight is affected.”

“We will communicate directly with affected customers as soon as possible,” Southwest said.

Delta Air Lines also advised customers of flight reductions, and provided guidance for travelers about how they can change or cancel their flights without any financial penalties.

Frontier Airlines stated that it expects most of its flights to operate as planned, but it will communicate with passengers whose travel plans may be affected by the cuts.

“Customers whose flights are canceled or delayed for more than three hours (domestic flights) or six hours (international flights) are able to rebook or to request a refund,” the airline said.

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