Update 2021-04-21 (2): The closure of the border with Mexico and Canada for non-essential travel has been extended until at least 21 May.
Update 2021-04-21 (1): According to media reports from Tuesday (20 April), for travel within the state of Hawaii fully vaccinated air passengers will be exempt from testing and quarantine requirements as of 11 May. However, this will only apply for Hawaiian residents.