What to know about 10% reduction in flights at U.S. airports caused by the government shutdown

NEW YORK (AP) — Hundreds of flights set for Friday are already being cut at major U.S. airports as part of the Federal Aviation Administration’s effort to phase in 10% reductions because of the government shutdown.

The Federal Aviation Administration is imposing the reductions to take pressure off air traffic controllers, who are federal employees and have gone without pay during the shutdown.

In addition to reduced flight traffic, the shutdown has led to more flight delays, with experts advising travelers to check flight statuses before heading to the airport, among other tips.

Here’s a closer look at what to know about the reductions.

Which airports are affected?

The list of airports facing reductions includes 40 airports with Atlanta, Denver, Dallas, Miami, Newark and San Francisco among them. A full list of airports facing reductions is here.

Nearly 500 flights have already been canceled for Friday, according to www.FlightAware.com. That’s more than four times higher than the number of flights cancelled Thursday.

Why is this necessary?

Air traffic controllers have gone without paychecks during the shutdown of the federal government. That’s led to controllers calling in sick and contributed to staffing shortages that have been affecting air travel for weeks.

Most controllers work mandatory overtime six days a week during the shutdown without pay, the National Air Traffic Controllers Association has said.

That leaves little time for a side job unless controllers call in sick to the FAA.

When will the reductions begin and end?

They’re set to start Friday, with passengers expected to be notified on Thursday. Airlines have said people could see weekend travel plans disrupted with little notice.

Airlines will phase in reductions at the direction of the FAA, starting by eliminating 4% of flights at the 40 targeted airports Friday and building to 10%, according to three people familiar with what the agency said, but who were not authorized to discuss it publicly.

United Airlines will cut 4% of its flights this weekend based on guidance from the FAA, said company spokesperson Josh Freed.

The FAA had not yet published an official order as of midday Thursday and didn’t immediately respond to questions about implementation details.

It’s unclear when the reduced flights could end. Airlines, unions and the travel industry have urged Congress to end the shutdown, which on Wednesday became the longest on record.

What will the effect of the reduction be?

The cuts could include up to 1,800 flights and about 268,000 seats combined, according to one estimate.

United Airlines and Delta Air Lines both said they would offer refunds to travelers who opt not to fly, even if they have tickets that aren’t normally refundable.

The cuts also could disrupt package deliveries because two airports with major distribution centers are on the list. FedEx operates at the Memphis, Tennessee, aiport and UPS in Louisville, Kentucky, where there was a deadly cargo plane crash this week.

Transportation Secretary Sean Duffy warned this week there could be chaos in the skies if the shutdown drags on long enough for controllers to miss their second full paycheck next week.

Has this happened before?

FAA Administrator Bryan Bedford said this week that he’s never seen these kinds of measures taken before in his nearly four-decade experience in the aviation field.

“We’re in new territory in terms of government shutdowns,” he said.

Staffing problems led to delays throughout October, but they were mostly isolated and temporary. Last weekend, though, saw a change.

From Friday to Sunday evening, at least 39 air traffic control facilities reported potential staffing limits, according to an Associated Press analysis of operations plans shared through the Air Traffic Control System Command Center system. The figure, which is likely an undercount, is well above the average for weekends before the shutdown.

During weekends from Jan. 1 to Sept. 30, the average number of airport towers, regional control centers and facilities monitoring traffic at higher altitudes that announced potential staffing issues was 8.3, according to the AP analysis.

List of airports impacted by government shutdown

1. Anchorage International in Alaska

2. Hartsfield-Jackson Atlanta International in Georgia

3. Boston Logan International in Massachusetts

4. Baltimore/Washington International in Maryland

5. Charlotte Douglas International in North Carolina

6. Cincinnati/Northern Kentucky International in Ohio

7. Dallas Love Field in Texas

8. Ronald Reagan Washington National in Virginia

9. Denver International in Colorado

10. Dallas/Fort Worth International in Texas

11. Detroit Metropolitan Wayne County in Michigan

12. Newark Liberty International in New Jersey

13. Fort Lauderdale/Hollywood International in Florida

14. Honolulu International in Hawaii

15. Houston Hobby in Texas

16. Washington Dulles International in Virginia

17. George Bush Houston Intercontinental in Texas

18. Indianapolis International in Indiana

19. John F. Kennedy International in New York

20. Harry Reid International Airport in Las Vegas

21. Los Angeles International in California

22. LaGuardia Airport in New York

23. Orlando International in Florida

24. Chicago Midway International in Illinois

25. Memphis International in Tennessee

26. Miami International in Florida

27. Minneapolis/St Paul International in Minnesota

28. Oakland International in California

29. Ontario International in California

30. Chicago O`Hare International in Illinois

31. Portland International in Oregon

32. Philadelphia International in Pennsylvania

33. Phoenix Sky Harbor International in Arizona

34. San Diego International in California

35. Louisville International in Kentucky

36. Seattle/Tacoma International in Washington

37. San Francisco International in California

38. Salt Lake City International in Utah

39. Teterboro in New Jersey

40. Tampa International in Florida