Tropical Storm Debby has caused significant travel disruptions along the East Coast, leading to over 18,000 flight delays and more than 5,000 cancellations since its landfall in Florida as a Category 1 hurricane. The storm has resulted in at least six fatalities in Florida and Georgia, with historic rainfall and catastrophic flooding reported across the southeastern states. Major airports like LaGuardia and Newark Liberty International have been severely affected, while Logan Airport in Boston is experiencing ongoing delays and cancellations. As the storm's remnants move up the coast, heavy rains are expected to impact areas as far north as Maine through Saturday. Power outages have also been widespread, with approximately 33,000 residents in Florida still affected. Travelers are advised to stay updated with their airlines for flight statuses and rebooking options.