Breaking News: Thousands more flights were canceled on Monday as Omicron surged. Dr. Anthony Fauci said a vaccine mandate for air travel should be considered.

View in browser | nytimes.com   BREAKING NEWS Thousands more flights were canceled on Monday as Omicron surged. Dr. Anthony Fauci said a vaccine mandate for air travel should be considered. Monday, December 27, 2021 12:28 PM EST Flight disruptions in the United States showed few signs of abating as many people embarked on their first trips in almost two years. At least 2,400 more flights were canceled on Monday as the Omicron variant continued to thin flight crews. Read the latest   ADVERTISEMENT You received this email because you signed up for NYTimes.com's Breaking News Alerts. To stop receiving these emails, unsubscribe or manage your email preferences. Subscribe to the Times Get the NYT app Change Your Email Privacy Policy Contact Advertise California Notice The New York Times Company, 620 Eighth Avenue, New York, NY 10018