Live updates: Omicron disrupts the holidays as COVID-19 cases prompt delays and closures

Published December 27, 2021 at 8:10 AM EST
People with suitcases and masks line up to check in at Los Angeles International Airport on Dec. 21.
Mario Tama/Getty Images
Getty Images North America
People wait on line to check in for their flights in the international terminal at Los Angeles International Airport (LAX) amid a surge in omicron variant cases on Dec. 21.

Thousands of flights were canceled over the weekend, and delays are persisting into this week. The lines for testing are long, but scientists say vaccinations and booster shots are largely warding off severe illness and hospitalizations.

Follow the latest updates on omicron's impact below.