Fears exist that the UK may be ready to increase its coronavirus travel restrictions as part of the next phase of its fight against infection.
Some travel industry experts fear that tighter restrictions may be imposed soon, and some government officials are campaigning for the reintroduction of a total travel ban.
Current restrictions were set when UK coronavirus infection rates were much lower while the pandemic was also under control in many European destinations.
Poland – with a Covid infection rate of 24.4 cases per 100,000 people – and Estonia (25.5) are expected to be added to the UK government’s quarantine list when the latest restrictions are announced Thursday afternoon.
Changes will take effect on Saturday at 4 a.m.
Adding Poland to the UK quarantine list creates a number of problems as many Poles have family and professional ties with the UK.
The airlines have also reiterated the increasing popularity of flights between the two countries.
Corornavirus cases in Estonia have also increased since August and have increased significantly in recent weeks.
However, Sweden, Italy and mainland Greece can survive without being added to the list for another week.
Travel and aviation officials are still pushing for airport tests to be introduced, but the UK government has insisted that available tests are unreliable.