Secretary of Transportation Sean Duffy said airlines are "going to lose millions of dollars" after the FAA instituted flight reductions due to the shutdown.

One travel rep warns that 40% of flights could be delayed as the longest government shutdown in history snarls air travel. Airlines say they will be flexible when it comes to letting passengers change or cancel their plans.

Federal Aviation Administration said on Friday it was delaying flights at eight airports including in Atlanta,​ San Francisco, Houston, Washington and Newark, citing widespread air traffic ‌staffing issues as controllers have not been paid during the government shutdown.

Airports across the nation are slated to see flight reductions as the record-setting government shutdown continues.

Airline passengers were already looking at higher fares and packed planes this holiday season. But the holiday headaches might get much worse as the government shutdown causes flight reductions at major airports.

San Francisco International Airport was among the major U.S. air-travel hubs to face cancellations as the federal government places limits on air travel.

Flights out of one of Europe’s biggest cargo airports were briefly suspended after drones were spotted, an airport official said Friday, an incident that comes amid a spate of incidents around Belgium in recent weeks.

The Federal Aviation Administration’s looming reductions, set to take effect in less than 24 hours, could have significant impacts on commercial flights in and out of San Francisco International Airport,