FAA's order to reduce flights at airports amid shutdown is in effect. What we know

The Federal Aviation Administration's order to cut flights during the ongoing government shutdown took effect Friday morning.

So far, hundreds of flights have been called off nationwide, according to flight tracking site FlightAware .

Meanwhile, air travelers with weekend plans can only sit and wait to learn if their flights will take off as scheduled. And airlines are planning to cancel flights into the weekend, telling passengers to check apps to learn their flight status.

The Associated Press reported that the FAA said the reductions would start at 4% and ramp up to 10% by Nov. 14. They are to be in effect between 6 a.m. and 10 p.m. and impact all commercial airlines.

Delta Air Lines told the AP that it would reduce about 170 flights Friday, and American Airlines planned to cut 22