The Times reports cautious optimism among ministers and officials working on plans to ease lockdown.
Citing a Whitehall source, the paper on Friday (19 February) said the outlook for foreign holidays was "increasingly positive".
According to The Times, vaccination certification will likely play a key role in any getaways.
It comes after health secretary Matt Hancock earlier this week gave the clearest indication yet such a regime would be brought into effect if sought by destinations.
Speaking to Sky News on Monday (15 February), Hancock said the UK government was working with countries around the world on how vaccine certification "can happen in a way that can be assured".
“We want Brits to be able to travel to those countries and enable Brits to be able to demonstrate their vaccine status, so that sort of vaccine certification is something we’re talking to our international counterparts about," said the health secretary.
A day later, vaccines minister Nadhim Zahawi told BBC Breakfast that if other countries were to require a vaccine certificate, "it was right we [government] facilitate it".
"Already when people travel to certain countries, they have to have a yellow fever certificate," said Zahawi. "So I think it’s right that we do that [offer Covid vaccination certificates] and that’s what we’re working on if there is a requirement.
"Any [traveller] can then ask for their vaccine certificate in the way we do pre-departure certificates now."
Greece, Israel and Cyprus have reportedly struck up a Covid travel bubble based on vaccine certification, and Greek tourism minister Haris Theoharis told BBC Radio 4’s Today programme on Thursday (18 February) Greece could waive testing requirements for vaccinated travellers.
Theoharis said the Greek government was hopeful of a "semi-normal summer" in terms of travel between the UK and Greece, confirming talks between the two countries were under way.
Prime minister Boris Johnson will on Monday (22 February) set out his roadmap for the UK’s emergence from its current state of Covid lockdown, which is expected to prioritise getting children back to school.
Johnson has stressed the transition will be data rather than date-driven, and will be executed in a cautious, phased manner.
The Times further quotes its Whitehall source as saying: "It’s looking increasingly positive on summer holidays. Once the vaccination passport system is set up, it should be straightforward. That won’t be easy, but we can see the way ahead."
