A powerful winter storm drove flight cancellations up to nearly 5,000 flights on Friday and Saturday in and out of the United States, according to FlightAware, a site that tracks flights and the airline industry.
Most of the cancellations were on the East Coast, where airports were preparing for high winds and up to two feet of snow in some regions.
In New York City on Friday night, La Guardia Airport had 232 flights canceled, Kennedy International Airport had 209 flights canceled, and Newark Liberty Airport had 167 canceled, the airports reported on Twitter.
All the airports warned that the number of cancellations were likely to rise.
The website for Boston Logan International Airport showed numerous canceled or delayed flights.
“Due to the expected storm, Boston Logan and airports along the east coast may experience delays and cancellations in operations Sat, 1/29 and Sun, 1/30,” the airport warned on Twitter.
Hours ahead of the storm’s arrival, the Rhode Island T.F. Green International Airport in Warwick, R.I., was upbeat about snow removal.
It said on Twitter that its crews “will be working tirelessly to keep the runways clear and safe.”