Delta Air Lines and United Airlines, the two US carriers with service to South Africa, said they did not intend to change their schedules in light of the Biden administration’s imposition of travel curbs on southern Africa due to concerns about the Omicron COVID-19 variant. Delta, which has three-times-weekly flights between Johannesburg and Atlanta, said “there are no planned adjustments to services at this time.” And United said it “remains committed to maintaining a safe and vital link for essential supplies and personnel to transit between the African continent and the United States as feasible. We don’t have any adjustments to our schedule at this time.” United currently operates five flights per week between Newark and Johannesburg and said it still plans to restart service between Newark and Cape Town on Dec. 1 as scheduled. The administration’s decision bars entry to most non-US citizens who have been in South Africa and seven other African countries within the last 14 days.