Many flights had problems in the United States on March 17 because of a strong storm. Over 550 flights did not leave, and many flights were late. Big cities like New York and Chicago had many problems. Airports were very busy because many people were traveling for holidays and games. There were also long lines at the airport. Some workers were not working because of a government problem. This made the lines longer. Airports told people to arrive early to catch flights. Many people waited for a long time and felt tired.