Why have UK and EU travellers been kept out of US?
We're expecting an update shortly from the White House in Washington on the United States' travel policy for people visiting from the UK and the EU.
The US imposed a travel ban in March 2020 due to the pandemic and the country's tourism industry had hoped it would be lifted after President Biden visited the G7 summit in Cornwall in June.
You can't fly to the US from the UK or European Union unless you have a National Interest Exemption, so that means you can't visit sick relatives, see family members, or go on holiday.
Why has the travel ban been kept in place for so long?
North America editor Jon Sopel has taken a look.
US to lift travel ban for vaccinated UK and EU travellers
Jon Sopel - BBC North America EditorThe travel ban for people living in the UK and EU, that was introduced last March by Donald Trump, is finally going to be relaxed.
An announcement is expected later today from the US administration.
It looks as though those who can demonstrate they have been double-vaccinated will, from November, be allowed to enter the US.
One British official told me the decision had come completely out of the blue. Prime Minister Boris Johnson had been planning to raise it tomorrow in his meeting at the White House with the president, but with little hope of making progress.
Though details have not been given, it is thought that the relaxation of the rules will come in time for people to travel over Thanksgiving.
This has been something that had been demanded by the travel industry – but more importantly for the thousands of families who’ve been unable to see loved ones for 18 months as a result of the restrictions introduced at the height of the pandemic.
Analysis: A much awaited change for the industry
Caroline Davies - Transport correspondentThis is really early days, we are still waiting to have that official announcement from the US government but my understanding from speaking to industry sources is that some of these airlines are now being briefed a change will happen.
Of course this is a much-awaited change for the industry - they have been desperate to get the US-UK lines connected again.
If you happen to be from the the US coming into the UK you have been able to come in if you have been double jabbed in the US since August - and not have to quarantine - so that has opened up for people travelling in one direction.
But at the moment you can't travel from the UK to the US unless you have a green card or you have a special stipulation or a US passport as well.
That has really limited things for businesses which rely on being able to go back and forth between the US and UK, but of course crucially for families who have been disconnected during this time and haven't been able to visit.
A lot of these long-haul airlines really rely on UK-US routes and that has been closed pretty much since the beginning of the pandemic so that is a long time without that source of income.
Airline shares soar ahead of expected US travel announcement
Airline shares have flown higher after reports that the US government is set to relax travel requirements for UK and EU citizens.
British Airways owner IAG led the risers on the FTSE-100, up as much as 10% on the day, while EasyJet climbed 2.6% higher, and jet engineer Rolls-Royce advanced 4.6%.
Fully-vaccinated passengers look set to be able to travel to the US from November.
An announcement from the Biden administration is expected as soon as Monday afternoon.
The move will mark the end of an 18-month travel ban which has been in force since 17 March 2020.