George Bush

Nov. 6 (UPI) — A reduction in flights will affect 40 airports amid the federal government shutdown, which has put a strain on air traffic control staffing, unnamed sources said Thursday.

The Federal Aviation Administration hasn’t listed the airports, but sources released the tentative list to ABC News, CBS News and The Washington Post.

Most of the airports affected are in major cities, such as New York, Chicago, Houston and Los Angeles. But other, less-busy airports are also on the list, such as Tampa Bay, Fla.; Anchorage, Alaska; and San Diego.

Transportation Secretary Sean Duffy announced the 10% flight reduction on Wednesday, and said the cuts will begin on Friday.

“Our sole role is to make sure that we keep this airspace as safe as possible. Reduction in capacity at 40 of our locations. This is not based on light airline travel locations. This is about where the pressure is and how to really deviate the pressure,” FAA Administrator Bryan Bedford Bedford said Wednesday.

​​”If you bring us to a week from today, Democrats, you will see mass chaos,” Duffy said on Tuesday.

A source told ABC News that the flight reductions will start at 4% Friday and work up to 10%. The flight reductions will be from 6 a.m. to 10 p.m. and tentatively affect the following airports:

1. Anchorage International (Alaska)
2. Hartsfield-Jackson Atlanta International (Georgia)
3. Boston Logan International (Massachusetts)
4. Baltimore-Washington International Marshall (Maryland)
5. Charlotte Douglas International (North Carolina)
6. Cincinnati/Northern Kentucky International (Ohio/Kentucky)
7. Dallas Love Field (Texas)
8. Reagan National (District of Columbia/Virginia)
9. Denver International (Colorado)
10. Dallas-Fort Worth International (Texas)
11. Detroit Metropolitan Wayne County (Michigan)
12. Newark Liberty International (New Jersey)
13. Fort Lauderdale-Hollywood International (Florida)
14. Honolulu International (Hawaii)
15. Houston Hobby (Texas)
16. Washington Dulles International (District of Columbia/Virginia)
17. George Bush Houston Intercontinental (Texas)
18. Indianapolis International (Indiana)
19. John F. Kennedy International (New York)
20. Las Vegas Reid International (Nevada)
21. Los Angeles International (California)
22. LaGuardia Airport (New York)
23. Orlando International (Florida)
24. Chicago Midway (Illinois)
25. Memphis International (Tennessee)
26. Miami International (Florida)
27. Minneapolis/St. Paul International (Minnesota)
28. Oakland International (California)
29. Ontario International (Canada)
30. Chicago O’Hare International (Illinois)
31. Portland International (Oregon)
32. Philadelphia International (Pennsylvania)
33. Phoenix Sky Harbor International (Arizona)
34. San Diego International (California)
35. Louisville International (Kentucky)
36. Seattle-Tacoma International (Washington)
37. San Francisco International (California)
38. Salt Lake City International (Utah)
39. Teterboro (New Jersey)
40. Tampa International (Florida)

The reduction could affect cargo and commercial travelers. It could also cause issues as people prepare to travel for Thanksgiving.

Aug. 6 (UPI) — United Airlines on Wednesday night briefly suspended flight departures nationwide because of a technology issue and expected further flight delays throughout the night.

Shortly after 7 p.m. CDT, the airline reported an outage and one hour later the system was coming back up, CBS News reported.

“Due to a technology issue, we are holding United mainline flights at their departure airports,” United said in a statement obtained by ABC News. “We expect additional flight delays this evening as we work through this issue. Safety is our top priority, and we’ll work with our customers to get them to their destinations.”

United later posted on Instagram: “We are working with customers to get them to their destinations after a technology disruption on Wednesday evening. The underlying technology issue has been resolved, and, while we expect residual delays, our team is working to restore our normal operations.”

The airline said to go to united.com or its United app for the latest flight information.

The Federal Aviation Administration temporarily issued a ground stop for United flights at United hubs: Chicago O’Hare International Airport, Denver International Airport, Newark Liberty International Airport, Houston’s George Bush International Airport and San Francisco International Airport.

By 10:30 p.m. EDT, the stops were only in Denver and Newark until 11 p.m. EDT.

Airports urged travelers to check with the airline on status. Passengers on connecting flights with other airlines could be affected.

United Express Flights and those already in the air were not affected, the airline told ABC.

United, which is based in Chicago, has approximately 4,600 flights per day at 354 destinations in 38 countries.

Through 10:30 p.m. EDT Wednesday, 1,308 flights have been delayed and 53 have been canceled, according to FlightAware.

At O’Hare, 16 flights — 11 departures and seven arrivals — have been canceled. The airport was reporting delays ofg hours, as of 9:30 p.m. CDT.

A line of United planes at O’Hare were stopped at the tarmac waiting for available gates, according to video taken by a passenger to CBS News.