The UK has been moved from level four "do not travel" to level three "reconsider travel".
It was among a number of countries reclassified by the US Department of State on Monday (10 May), although around three-quarters are still at level four.
This included further easing its advisory for travel to Israel from level three to level two "exercise increased caution".
Its advisory for the UK now reads: "Reconsider travel to the United Kingdom due to Covid-19. Exercise increased caution due to terrorism."
