Brit tourists hoping to fly to Portugal once the UK lifts its foreign travel ban have seen their plans plunged into fresh doubt.
On Monday a raft of lockdown restrictions put in place to help stem the tide of Covid will be lifted.
Holidaymakers will once again be allowed to fly out of the UK for non-essential travel, but will have to show coronavirus tests or even quarantine for many destinations.
A 'green list' of 12 travel destinations has been drawn up where passengers won't need to quarantine on returning home, and Portugal has been placed on that list.
But there are fears tourists could be turned away on arriving there after the country extended its 'state of calamity' until at least May 30.
Guidance published on the Portuguese Government's website on Thursday said that ministers had approved a move to continue the current level of lockdown.
The Times reports that airlines were waiting for a final decision by Portuguese officials but that a source had said that unless a decision was made by 9am flying schedules for early next week would need to be scrapped.
Senior travel industry sources were reported to have said that the sector had been left in a state of limbo and that the green list was proving to be “crackers”.
“How can people plan when there is this level of uncertainty?” the source said. “It has become a joke.”
According to the BBC, Portuguese Cabinet office minister Mariana Vieira da Silva said in a briefing on Thursday she had "no information to give yet" when asked if restrictions on travel from the UK would soon be lifted.
"Work is going on and as soon as there is a decision it will be announced, but no decision was taken in this cabinet meeting," she said.
Thousands of British football fans are hoping to travel to the city of Porto for the all-English Champions League final between Manchester City and Chelsea on May 29.
UEFA previously confirmed that 6,000 tickets would be made available to each of the finalists, with the final capacity limit at the Estadio do Dragao still to be fixed.
Ms Vieira da Silva said under current plans for the Champions League final, a series of restrictions to British fans would apply.
As well as the limit on ticket sales, fans will have to fly in on charter planes, arriving and leaving "on the same day", the BBC said.
Guidance from the Department of Transport warns that many green list countries still have restrictions on UK travellers.
It advises passengers to check all entry and testing requirements and Foreign, Commonwealth and Development Office [FCDO] travel advice for Portugal before booking travel.
During the "state of calamity", entry to Portugal is only allowed if you are a returning resident, according to information on the FCDO website.
Entry to non-residents is limited to essential purposes from the UK and other non-EU countries, and EU or European Economic Area countries where the case rate is above 150 cases per 100,000 residents.
"Essential purposes" are defined as travelling to live with immediate family members or professional, educational, health or humanitarian reasons.
To enter Portugal, proof of a negative Covid-19 test taken with 72 hours of departure is required.
Those without proof of a negative test can be refused permission to board a flight, or may be forced to quarantine in government-approved accommodation upon arrival.