More than 300 flights have been canceled at Newark Airport.
More than 2,600 flights were canceled and more than 7,900 were delayed across the United States on Sunday. According to data from FlightAware.
According to the Federal Aviation Administration, airports across the Northeast are experiencing the most disruptions because of thunderstorms throughout the day.
New Jersey’s Newark Liberty International Airport is experiencing the most significant cancellations, with 362 flights canceled and 337 delayed, according to FlightAware.
John F. Kennedy International Airport reported 318 flight cancellations and 426 flight delays. In addition, 292 flights were canceled at LaGuardia Airport, and 259 flights were canceled and 459 flights were delayed at Boston Logan International Airport, FlightAware data shows.
JetBlue sees a significant impact with 27% (283) of flights canceled and 43% (445) of delays. Regional airline Republic Airways was impacted by 32% (320) flight cancellations and 20% (201) delays, according to FlightAware.
Delta subsidiary Endeavor Air, a regional airline, had 26% (174) of flight cancellations and 18% (122) of flight delays.
“Slow-moving thunderstorms linger in the Northeast, Midwest and Southeast through the PM,” The FAA said on Twitter on Sunday.
In the Northeast, more than 56 million people were under a flood watch, with heavy rain Sunday morning causing flash flooding in parts of Virginia, Pennsylvania and New Jersey.
ABC News’ Julia Jacobo contributed to this report.