Flights to Portugal could be the hottest tickets of the summer as the ever-popular tourist destination is one of few set to welcome back British tourists from May 17.

Portugal, including its island territories of Madeira and the Azores, is included on the UK Government's 'green list' of countries it will allow people to return from without having to quarantine from May 17 onwards, as things stand.

Tui, the UK’s largest holiday company, spoke of seeing a rise in customer demand in the wake of the announcement, particularly for trips to Portugal.

A spokeswoman said: “We’ve had the best day of sales for summer 2021 holidays since the initial road map announcement in February.

“Sixty per cent of all holidays sold yesterday were to Portugal.”

The firm said new flights and extra holidays have been added for people who want to “get away as quickly as possible”.

Thomas Cook said holidays to Portugal have been its “number one seller” since the announcement.

A spokesman said: “Yesterday more people bought holidays to Portugal than had bought the whole of the rest of the year but demand remains below ‘normal’ levels and so hotels will have plenty of availability giving people plenty of choice.

“Customers are choosing to stay for longer than a week, and half of yesterday’s Portugal bookings were in five-star hotels, showing that people are splashing out.”

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So, what can tourists from the UK do in Portugal?

Currently, Portugal is in the final stage of its four-part plan to lift its "Situation of Calamity", which is essentially its version of roadmap out of lockdown.

The Situation of Calamity is due to end on May 16, a day before UK tourists arrive, although visitors should still expect to be required to wear masks when in enclosed spaces. Below, we take a look at what Portugal allows people to do now. From May 16 expect further changes and lockdown relaxations, although another review is due before then.

Since May 1, restaurants, cafes and pastry shops have been allowed to open until 10.30pm, with groups of six allowed inside and parties of 10 on outdoor terraces, in all parts of Portugal other than Odemira, Portimão, Aljezur, Carregal do Sal, Resende, Paredes, Miranda do Douro and Valongo, where tighter restrictions apply for now, Visit Portugal says.

Large outdoor and indoor events are also allowed, but with a reduced capacity.

Cinemas, theatres and shopping centres are also open, as are golf courses, swimming pools and other sport facilities.

Beaches are open, although visitors are asked to wear masks when walking near people on them.

Bars are open too, while the popular tourist region of the Algarve says live music and DJs can perform.

Will I need a Covid-19 test to enter Portugal?

It has not yet been confirmed if a test or proof of vaccination will be required for UK tourists to enter Portugal

As My Guide Algarve states: "Travel measures are still being discussed by authorities with the EU recommending the easing of restrictions on international travel. It is suggested that travel (EU and UK citizens) for those vaccinated or with negative tests, or recently recovered from Covid be approved."

The Portuguese Government is set to issue an update on Thursday May 13 regarding travellers entering from England.