Over 1,537 flights in the U.S. were delayed 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 disruptions 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 annoyance for those with travel plans. Airlines are working to reduce the impact of the weather conditions on their operations. Passengers are encouraged to stay informed their flight statuses as the situation develops. The delays highlight the difficulties faced by airlines during severe weather events. Travelers are advised to allow extra time for their journeys due to the delays. Airlines are working to restore normal operations as quickly as possible. The delays have caused significant annoyance 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 annoyance for those with travel plans.