Canada wildfire smoke again slows flights to the Eastern U.S.

Smoke from Canada wildfires is set to disrupt flights again Thursday after hundreds were delayed a day earlier due to decreased visibility, the Federal Aviation Administration said.

The FAA said it will “likely need to take steps to manage the flow of traffic safely into New York City, DC, Philadelphia and Charlotte due to reduced visibility from wildfire smoke.” Traffic to Philadelphia International Airport was paused until 9:15 a.m., the FAA said.

Hundreds of flights at LaGuardia Airport and Newark Liberty International Airport were delayed on Wednesday due to the heavy smoke. The FAA had briefly paused traffic altogether into LaGuardia during the day.

As of about 9 a.m. ET on Thursday, there were nearly 800 flights delayed across the U.S., according to flight-tracker FlightAware.

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