Follow live updates as flight reductions begin today at 40 high-traffic airports in what officials have described as a "proactive" effort to alleviate pressure points.

While Boise is not one of the hubs designated for flight reductions by the FAA, many of Boise's connecting hubs are being affected.

Travelers flying to or from San Diego International Airport could experience flight delays or cancellations starting Friday as the cutbacks in flight capacity began at 40 major airports nationally.

Travelers told News 5 this was the highest volume of traffic in the airport that they have seen since pre-pandemic.

United, American, Delta, and Southwest are among the airlines adjusting schedules and warning passengers to expect potential disruptions at SFO and across Bay Area airports.

The FAA has reduced flights at major airports, blaming the federal government shutdown. What happens if airlines cancel your flight.

The FAA released a list of 40 airports where air traffic will be lowered by 10%. Included on the list were Newark, Teterboro, JFK and LaGuardia airports.

A small percentage of domestic flights were canceled on Friday, but Transportation Secretary Sean Duffy said the reductions, which were already going to increase next week, could sharply rise by the holidays if the shutdown continued.

Several airports that send flights to Palm Beach International Airport could see flight cancellations amid the federal government shutdown.

Travelers can expect to see fewer flights to many major U.S. cities starting Friday morning, when the Federal Aviation Administration said it would reduce traffic across 40 airports to ease the load on the nation's air traffic controllers.