FAA reduces air traffic by 10% at 40 airports - See the list

The Federal Aviation Administration announced the 40 "high-volume markets" where it is reducing flights by 10% before the cuts go into effect on Nov. 7.

The reduction was prompted because of staffing shortages amid the ongoing government shutdown, which is now the longest in U.S. history. 

RELATED: FAA reducing air traffic by 10% amid ongoing government shutdown

The Federal Aviation Administration is reducing air traffic by 10% across 40 "high volume" markets beginning Friday.  The impact will affect travelers in 27 states and Washington, D.C.

Which airports are reducing flights?

Here's a complete list of airports by state and airport code that are having flights reduced by the FAA.

Alaska

• ANC Anchorage International

Arizona

• PHX Phoenix Sky Harbor International

California

• LAX Los Angeles International
• OAK Oakland International
• ONT Ontario International
• SFO San Francisco International
• SAN San Diego International

Colorado

• DEN Denver International

Florida

• FLL Fort Lauderdale/Hollywood International
• MCO Orlando International
• MIA Miami International
• TPA Tampa International

Georgia

• ATL Hartsfield-Jackson Atlanta International

Hawaii

• HNL Honolulu International

Illinois

• MDW Chicago Midway
• ORD Chicago O`Hare International

Indiana

• IND Indianapolis International

Kentucky

• SDF Louisville International

Maryland

• BWI Baltimore/Washington International

Massachusetts

• BOS Boston Logan International

Michigan

• DTW Detroit Metropolitan Wayne County

Minnesota

• MSP Minneapolis/St Paul International

Missouri

• SDF Louisville International

Nevada

• LAS Harry Reid International Airport

New Jersey

• EWR Newark Liberty International
• TEB Teterboro

New York

• JFK New York John F Kennedy International
• LGA New York LaGuardia

North Carolina

• CLT Charlotte Douglas International

Ohio

• CVG Cincinnati/Northern Kentucky International

Oregon

• PDX Portland International

Pennsylvania

• PHL Philadelphia International

Tennessee

• MEM Memphis International

Texas

• DAL Dallas Love
• DFW Dallas/Fort Worth International
• HOU Houston Hobby
• IAH George Bush Houston Intercontinental

Utah

• SLC Salt Lake City International

Virginia

• IAD Washington Dulles International

Washington

• SEA Seattle/Tacoma International

Washington, D.C.

• DCA Ronald Reagan Washington National

The backstory:

Transportation Secretary Sean Duffy told "Fox & Friends" on Thursday that the decision to limit air travel capacity to 40 airports was "data-driven."

"We were seeing increased pressure in these 40 markets. And we looked at the data — this was data driven — and so taking 10% of the flights out will reduce that pressure, which is what we want to do," Duffy said.

"Now, does that mean there's going to be no delays? No, Brian," Duffy told Fox News' Brian Kilmeade. "There's potentially still going to be delays if we have staffing triggers, and we don't have enough controllers in an aerospace where we did cut 10%, you might see additional delays."

When asked about whether Americans should consider canceling their holiday plans, Duffy said it was "hard to predict" what could happen in the coming weeks, pointing to the historically long government shutdown.

"As we come into Thanksgiving, if we're still in the shutdown posture, it's going to be rough out there. Really rough. And we'll mitigate the safety side, but will you fly on time? Will your flight actually go? That is yet to be seen, but there'll be more disruption," Duffy said.

However, the transportation secretary said that Americans should still book their holiday travel if they see deals they want to grab. He added that he has already booked travel for his children to come home for the holidays.

RELATED: What are the busiest airports in the US?

Flight delays during shutdown

Dig deeper:

This week, more than 1,000 flight delays within, into or out of the U.S. have been delayed, with dozens of flights canceled, according to the flight tracking site FlightAware.com. 

As of 9:30 a.m. ET on Thursday, 1,094 flights within, into or out of the U.S. had been delayed, while 49 had been canceled, according to FlightAware.com.

Air traffic controllers have been working unpaid since the shutdown started on Oct. 1. Most employees work mandatory overtime six days a week, affecting their time to perform side jobs to cover bills and other expenses.

RELATED: FAA cuts flights amid shutdown — What to do if yours is delayed or canceled

Airlines work to have at least 80% of their flights depart and arrive within 15 minutes of when they are scheduled. 

Aviation analytics firm Cirium said that since the shutdown began, the total number of delays overall has not fallen significantly below that goal because most of the disruptions so far have been no worse than what happens when a major thunderstorm moves across an airport.

Major airlines, aviation unions and the travel industry have been urging Congress to end this shutdown as soon as possible by voting to support the clean funding resolution that Republicans have proposed.

The U.S. Travel Association said in a letter to Congressional leaders this week that the economy has already lost more than $4 billion because of the shutdown, and the industry worries the impact will get significantly worse if the shutdown continues into the holiday travel season.

What they're saying:

United Airlines released a statement following the FAA's announcement on Wednesday: 

"The FAA's goal is to relieve pressure on the aviation system so that we can all continue to operate safely. That is the FAA's highest priority, and ours as well. No matter what environment we're operating in, we will not compromise on safety. These reductions will start on Friday, November 7, and we will continue to make rolling updates to our schedule as the government shutdown continues so we can give our customers several days' advance notice and to minimize disruption for them and for all of you," the company said. 

Read the full statement here.