Charlotte, North Carolina, has the most cancellations – at 120 – as industry experts say other sectors might also feel effects

US airlines again canceled more than 1,000 flights on Saturday, the second day of the Federal Aviation Administration’s order to reduce air traffic because of the government shutdown.

So far, the slowdown at many of the nation’s busiest airports hasn’t caused widespread disruptions. But it has deepened the impact felt by what is now the nation’s longest federal shutdown.

Analysts warn that the upheaval will intensify and be felt far beyond air travel if the cancellations pick up and move closer to the Thanksgiving holiday.