Is Portugal open to travel from Brazil by plane?
From Portugal to Brazil: It is open at this moment. You need to have a PCR test and fill out the form https://formulario.anvisa.gov.br/index.php/39183?lang=pt-BR
From Brazil to Portugal: You should have a TRAg, PCR test or Covid Certificate. Also, you should be an EU Citizen or having a Portuguese Residence. Finally, you should fill out two forms.