Originally Posted by GUWonder

Departing the country of residence for the country of citizenship has normally been given more of an "out" to travel than when the country of citizenship is the same as the country of residence. If that is no longer how it goes with departures from the UK to the US for US citizens with ILR status in the UK or UK citizenship, then that is news to me as I've not yet heard of US citizens being denied travel from the UK to the US under UK rules related to Covid-19 travel restrictions. But technically US citizens resident in the UK are subject to the "stay at home restrictions" in the UK and should not be visiting the US for "holidays"/vacation/tourism purposes as they are subject to the "stay at home" regulations in the UK..