The cuts will increase gradually over the next week, as air traffic controllers go without pay during the ongoing government shutdown.

As the longest government shutdown in U.S. history drags on, airlines have been ordered to begin reducing operations on a phased-in basis.

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.

Oakland International Airport, the other Bay Area airport affected by FAA flight reductions, had at least 12 cancellations on Friday morning, and 15 delays so far.

The Federal Aviation Administration will reduce flight capacity by 10% at 40 major airports across the country, officials announced during a press conference on Wednesday. The decision could cut thousands of flights per day.

The Federal Aviation Administration announced today that forty major airports will see a 10% reduction in flight capacity as a result of cuts. Salt Lake City International Airport is one of those airports.

JFK, LaGuardia and Newark are all among the 40 travel hubs bracing for delays and cancellations as the FAA starts reducing air traffic​ today.

The potential delay comes just two days after Houston’s William P. Hobby Airport issued a ground stop Tuesday afternoon for the same reason. That ground stop lasted until 6 p.m., while a ground delay continued until 9 p.m., according to Houston Airports.

The Federal Aviation Administration has announced plans to reduce flights at dozens of the nation's busiest airports amid staffing shortages triggered by the ongoing impasse.