Over 1,537 flights in the U.S. experienced delays and 61 were canceled due to widespread travel disruptions. The Nor'easter threats caused additional cancellations on October 21. Ground delays piled up at East Coast airports, prompting airlines to issue waivers for Friday operations. Passengers faced significant delays as airlines worked to resume services. Airlines reported that the severe weather had a significant impact on flight schedules. Passengers were advised to check their flight statuses before heading to the airport. The delays were expected to continue into the weekend, causing further inconvenience for those with travel plans. Carriers are working to reduce the impact of the weather conditions on their operations. Passengers are encouraged to monitor their flight statuses as the situation develops. The delays highlight the challenges faced by airlines during severe weather events. Travelers are advised to allow extra time for their journeys due to the delays. Carriers are working to restore normal operations as quickly as possible. The delays have caused significant inconvenience for those with travel plans. Travelers are encouraged to check their flight statuses as the situation continues to evolve. The disruptions are expected to continue into the weekend, causing further inconvenience for those with travel plans.