(ABC NEWS)– 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 restrictions will go into effect Friday morning, FAA Administrator Bryan Bedford and Transportation Secretary Sean Duffy said.

ABC News obtained the list of airports, which includes Atlanta’s Hartsfield-Jackson, Boston Logan, all three New York City-area airports, Chicago O’Hare and many others. Sources said the cuts could start as early as Thursday. (See the full list of airports below)

A source told ABC News that the flight reductions will start at 4% on Friday and work up to 10%. The flights impacted by these reductions are scheduled during the h

See Full Page