No, according to the Borders and Immigration Service’s FAQ:
8. I am in the USA, can I travel to Portugal?
Air traffic originating in the United States of America is only allowed for essential travel, that is, for:
- Citizens of the European Union, nationals of States associated with the Schengen Area and members of their families, third-country nationals (i.e. citizens of non-EU countries) legally resident in a Member State of the European Union;
- Third-country nationals traveling for professional, study, family reunion, health or humanitarian reasons, and in accordance with the principle of reciprocity.
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