More than 7,000 flights were disrupted across the eastern United States on Tuesday, July 21, 2026, with over 2,000 cancellations and more than 5,000 delays recorded due to severe thunderstorms.
Eastern U.S. Airports Hit by Storm Disruptions
The affected region included major airports in the New York City metropolitan area, Boston, Philadelphia, and Washington, D.C. Key facilities impacted were Baltimore/Washington International Airport (BWI) in Maryland; Boston Logan International Airport (BOS) in Massachusetts; Newark Liberty International Airport (EWR) and Teterboro Airport (TEB) in New Jersey; LaGuardia Airport (LGA) and Westchester County Airport (HPN) in New York; Philadelphia International Airport (PHL) in Pennsylvania; and Ronald Reagan Washington National Airport
(DCA) and Washington Dulles International Airport (IAD) in Virginia. Canada’s Toronto Pearson International Airport (YYZ) also experienced ground stops accompanying the severe weather.
Tornadoes and Flood Warnings Accompany Severe Thunderstorms
The storms brought hazardous weather conditions including flood warnings and tornado watches across parts of the Northeast. At least two tornadoes were reported, one in northeast Pennsylvania and another in northern New Jersey, contributing to the deterioration of flight operations throughout the region.
FAA Ground Stops Impair Airport Operations
In response to the intense thunderstorms, the Federal Aviation Administration (FAA) implemented ground stops at multiple airports to temporarily halt aircraft movement for safety reasons. These restrictions caused cascading operational difficulties, intensifying delays and
cancellations at the nation’s busiest hubs.
Airlines Provide Flexible Travel Options Amid Disruptions
JetBlue, United Airlines, and American Airlines announced measures to assist affected travelers. JetBlue allowed customers with disrupted flights to rebook travel through Sunday or request refunds, deploying teams across the Northeast and Mid-Atlantic to aid passengers. United Airlines waived trip change fees for flights departing between July 20 and July 23, 2026, permitting rebooking without fees or fare differences if the new itinerary matched the original cities and cabin class. American Airlines notified impacted customers by email and its mobile app, requiring rebooking by Wednesday and new travel by Friday relative to the date
of disruption.
John F. Kennedy International Airport (JFK) was not subject to a ground stop but experienced an average ground delay of about four hours on Tuesday afternoon, according to FlightAware. Nearly 600 departing flights were canceled and over 500 delayed in the New York City metropolitan area, highlighting the extensive regional impact.
FlightAware tracked the storm-related disruptions affecting more than 7,000 flights as the severe weather continued moving through the Northeast. Airlines maintained communications and updated travelers to manage changes to travel itineraries caused by the ongoing adverse conditions.
