Singapore and Hong Kong Agree To Launch Air Travel Bubble (ATB) Flights

Enhancements made to the ATB agreement to better safeguard public health and provide greater stability

            Singapore and Hong Kong have agreed to set 26 May 2021 as the launch date of the Singapore – Hong Kong Air Travel Bubble (ATB). Both parties will continue to monitor the COVID-19 situation from now till 26 May 2021, and will proceed with the launch if the situation continues to be steady and remain under control in both cities.

2.         The ATB will be launched under more stringent arrangements to better safeguard public health and provide greater stability. Travellers on the ATB must have remained in either Singapore or Hong Kong in the last 14 days prior to departure, and the 14 days period must exclude any time spent in quarantine or Stay-Home Notice (SHN) arising from their last return to Singapore or Hong Kong from overseas. In addition, they must now download and install Hong Kong’s LeaveHomeSafe (LHS) app on their mobile devices prior to leaving Singapore for Hong Kong. If the ATB has to be suspended when the seven-day moving average of the unlinked community cases in either Singapore or Hong Kong increases to above 5, it can only resume when the COVID situation has stabilised.

3.         Other than the above, the requirements for travellers from Singapore under the ATB remain the same as those announced in November 2020. There will be no restrictions on the purpose of travel and no requirements for a controlled itinerary or sponsorship. These requirements include undergoing COVID-19 pre-departure and on-arrival Polymerase Chain Reaction (PCR) tests in lieu of quarantine or SHN, and travel on designated ATB flights. The full details of the ATB requirements are in the Annex.

4.         Interested travellers are reminded that they must travel only on designated ATB flights. Currently, these ATB flights are operated by Singapore Airlines and Cathay Pacific. Travellers are advised to check with the airlines on the flights which have been designated as ATB flights.

5.         All travellers must also adhere to the prevailing border control measures and public health requirements of both cities. For the latest updates, travellers may visit Singapore’s Safe Travel website at and Hong Kong’s website at

Annex: ANNEX - Details of Singapore – Hong Kong Air Travel Bubble

About the Civil Aviation Authority of Singapore

The mission of the Civil Aviation Authority of Singapore (CAAS) is to grow a safe, vibrant air hub and civil aviation system, making a key contribution to Singapore's success. CAAS' roles are to oversee and promote safety in the aviation industry, develop the air hub and aviation industry, provide air navigation services, provide aviation training for human resource development, and contribute to the development of international civil aviation.