Mrloyalty
Из Гонконга в Лондон пускают без Карантина, а вот из Москвы только с Карантином. Я узнал это уже постфактум.
При транзите - нету карантина 14 дней, инфа 100%
If your departing flight is on the same calendar date as your arriving flight and you have been issued a boarding pass for your onward flight, you will be free to transit/connect through Heathrow without having to clear Immigration.
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If you have an overnight connection, or if you have not been issued a boarding pass for your onward flight, you will be asked to clear Immigration at Heathrow.
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Please bear in mind that there is currently a mandatory 14-day self-isolation period in place, unless you are travelling from one the exempt countries...
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These measures will still apply to passengers who must clear immigration to make a connection as outlined above, however, passengers will be able to leave their self-isolation address early to return directly to Heathrow to take their connecting flight.