Portugal will be moving to the amber list and no new destinations will be added to England's green travel list, transport secretary Grant Shapps confirmed on Thursday June 3.
This means anyone travelling back from Portugal to the UK - from 4am on Tuesday June 8 - would have to spend 10 days in quarantine and ensure they can pay for two PCR tests.
The changes follow the first three-weekly review of the government’s traffic light list for travel. Each country in the world is categorised as being either green, amber or red, depending on their coronavirus infection rates.
Those on the green list, which include Iceland, New Zealand and Israel, have the fewest restrictions on travel, whereas 'red' countries should only be visited in exceptional circumstances.
Australia, New Zealand and Iceland are not currently accepting visitors from the UK, despite being on the green list.
The most popular European destinations with UK holidaymakers – such as Spain, Italy, France and Greece – are on the amber list.
What are the rules for people returning from each category?
Green: There is no need to self-isolate. Take a pre-departure test and a PCR test on day two of your arrival in the UK.
Amber: Self-isolate for 10 days, unless you receive a negative result from a test taken at least five days after arrival. Take a pre-departure test, and PCR tests on day two and day eight of your arrival in the UK.
Red: Spend 10 days in a quarantine hotel. Take a pre-departure test, and PCR tests on day two and day eight of your arrival in the UK.
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Here is a look at the green and red categories.
Popular holiday destinations on amber list
Democratic Republic of the Congo
Trinidad & Tobago
United Arab Emirates (UAE)
Stay up to date with the changing travel situation in the UK and abroad with news, information and advice at itv.com/holidaynews