We are flying on 2 domestic flights with Viet Nam Air departing from Saigon and 1 international flight departing from Hanoi also with Viet Nam Air. Under current airport conditions, how early should we arrive at the airports before our scheduled flight times? Are there any procedures different in these airports or with Viet Nam Air that are different? or anything unusual with the Security Screening Process? Do we have to get our seat assignments when checking in at the airports? Do we need to reconfirm our reservations with Viet Nam Air the day before? Any Tips to avoid surprises will be appreciated. Thank you.