Tour operator TUI has hinted that the UK will soon confirm air bridges with Spain and Greece.
The holiday firm has been involved in government discussions with other countries about providing quarantine-free travel for Brits.
Health Secretary Matt Hancock said that the final list of countries would be released in days.
However, Tui bosses announced over the weekend that the company would only be arranging trips to quarantine-free destinations and later revealed holidays would be resuming to eight resorts across Spain and Greece from July 11, The Mirror reports.
Brits will be able to fly to destinations in Greece, the Balearics and the Canaries from TUI’s three biggest UK airports, Gatwick, Manchester and Birmingham.
TUI are offering up to 44 flights a week to Ibiza, Palma, Corfu, Crete, Kos, Rhodes, Lanzarote and Tenerife.
Commercial director Richard Sofer told the Telegraph: “Due to the size of our organisation we've been able to have a presence in each of those government conversations through our aviation team or through the senior members of the UK business," he said.
"We're well-informed of where those discussions are.
“Obviously many of those conversations are confidential but that gives us great confidence to open up a small programme to a couple of really key countries, eight key gateways for us.
"We have absolute confidence that we're going to be getting a positive result from the government in time for July."
Health Secretary Matt Hancock revealed on Monday that the final list of countries would be released in days.
He said: “We have a formal review date of the quarantine policy at the end of this month on June 29, and we'll make sure that in good time for that we publish what we plan to do next in terms of where we think – based on the epidemiological advice we're able to formalise travel corridors.
“I know that people are really looking forward to getting this information, but we've got to make sure that we get it right and that work is going on right now.”
In an email to customers TUI announced their "promise" to only take customers on quarantine-free holidays explaining: "This means we won’t travel to places where we know that you’ll need to self-isolate when you arrive or when you return home. "
It means that TUI customers may only be able to go on holiday to countries that have an agreed "air bridges or travek corridors" with the UK.
