WASHINGTON — Hundreds of thousands of travelers had their flights delayed or canceled on Sunday in the worst day for disruptions since the start of a U.S. government shutdown, as Transportation Secretary Sean Duffy warned of worse to come in the run-up to the Thanksgiving holiday.

Airlines canceled more than 2,800 U.S. flights and delayed more than 10,200 on Sunday in the third day of government-mandated flight cuts due to rising air traffic control staffing shortages, after thousands of delays and cancellations snarled traffic on Saturday.

The government shutdown, which has reached a record 40 days, has led to shortages of air traffic controllers who, like other federal employees, have not been paid for weeks.

“It’s only going to get worse… the two weeks before Thanksgiving, you’re goi

See Full Page