Singapore will temporarily freeze flight and bus ticket sales under the Vaccinated Travel Lane (VTL) policy from Dec. 23, 2021, to Jan. 20, 2022, to limit its exposure to imported Omicron cases, said the Ministry of Health in a press release (pdf). Although VTL ticket sales will resume on Jan. 21, flight and bus ticket sales quotas will be cut by half, according to the Civil Aviation Authority of Singapore and the Ministry of Trade and Industry in two separate press releases. Passengers who have already bought tickets for designated VTL flights and buses will not be affected by the new measures and can continue to travel to Singapore under the VTL. Currently, travelers entering Singapore through the VTL do not have to quarantine, but are subject to a rigorous testing protocol, which includes a pre-departure Polymerase Chain Reaction (PCR) test or professionally administered antigen rapid test (ART) within 2 …