The Prime Minister is set to announce plans for easing coronavirus restrictions on foreign travel from England, on Monday.
Boris Johnson is said to be using a 'traffic light' system for rating holiday destinations, so that Brits can go abroad this summer.
It is reported that the 'traffic light' system would allow for travel to countries assessed as being at the lowest risk.
Officials stressed travel would not begin before May 17 at the earliest and that it was still too soon to predict which countries would be cleared for journeys.
The advice remains that people should wait for the full report of the Government's global travel task force due on April 12 before booking a holiday.
Tim Alderslade, chief executive at Airlines UK, said: "There are tens of thousands of jobs dependent upon aviation and restarting travel, and the sector cannot survive another lost summer with little or no revenue.
"We can do this proportionately and in a risk-based way, it's not a question of opening up the border to every country out there.
"If there are concerns about variants restrictions will remain but where it is safe to do so we need to start the process of opening up.
"We cannot with a straight face talk about Global Britain without aviation."
Proportion of a country's population which has been vaccinated, rates of infection, emerging new variants and the country's access to reliable scientific data and genomic sequencing could be factors used in the traffic light system.
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Boris Johnson is thought to announce that arriving from countries rated "green" will not be required to isolate although coronavirus tests will still be needed.
For those classed as "amber" or "red", the restrictions will remain as they are with arrivals required to isolate or enter quarantine.
Countries currently on the red list:
- Angola
- Argentina
- Bangladesh (will be added to the list 4am Friday 9 April)
- Bolivia
- Botswana
- Brazil
- Burundi
- Cape Verde
- Chile
- Colombia
- Democratic Republic of the Congo
- Ecuador
- Eswatini
- Ethiopia
- French Guiana
- Guyana
- Kenya (will be added to the list 4am Friday 9 April)
- Lesotho
- Malawi
- Mozambique
- Namibia
- Oman
- Pakistan (will be added to the list 4am Friday 9 April)
- Panama
- Paraguay
- Peru
- Philippines (will be added to the list 4am Friday 9 April)
- Qatar
- Rwanda
- Seychelles
- Somalia
- South Africa
- Suriname
- Tanzania
- United Arab Emirates (UAE)
- Uruguay
- Venezuela
- Zambia
- Zimbabwe
