The authority has submitted a draft plan on the operation of domestic flights between October 21 and November 30 after 10 days of the trial reopening of domestic air routes. It suggested that the flight frequency on the routes of Hanoi - Da Nang, Hanoi - Ho Chi Minh City, and Da Nang - HCM City for each airline should not be over 10 percent higher than the average that carrier operated in the first week of April 2021, before the fourth wave of infections began. Within 15 days since the implementation of the plan, it will assess the pandemic situation in each locality and nationwide to work out an appropriate plan on flight frequency. The authority also suggested the requirement for keeping distance on planes be removed, which has also been repeatedly urged by airlines recently./.