Jet2.com has taken the decision to extend the suspension of flights and holidays until June 23 due to the “continued uncertainty” of government guidelines.

Under guidance from Boris Johnson’s road map out of lockdown, May17 as been earmarked as the earliest date international travel can resume in lockdown.

However, Jet2 chief executive Steve Heapy said the aviation company were “extremely disappointed” with the current guidance from government.

He said: “We have taken time to study the Global Travel Taskforce’s framework, and we are extremely disappointed at the lack of clarity and detail.

“After several weeks exploring how to restart international travel, with substantial assistance and input from the industry, the framework lacks any rigorous detail about how to get international travel going again. In fact, the framework is virtually the same as six months ago.

“Following the publication of the framework today, we still do not know when we can start to fly, where we can fly to and the availability and cost of testing. Rather than answering questions, the framework leaves everyone asking more.”

He added: “Because of the continued uncertainty that the framework provides, it is with a heavy heart that we have taken the decision to extend the suspension of flights and holidays up to and including 23rd June 2021.”

The move comes as Grant Shapps told people to “start to think” about booking their summer holidays abroad.

Asked if people could start to book foreign holidays now, Mr Shapps told Sky News: “I’m not telling people that they shouldn’t book summer holidays now, it’s the first time that I’ve been able to say that for many months.

“But I think everybody doing it understands there are risks with coronavirus and of course actually, I think people would want to be clear about which countries are going to be in the different traffic light system.

“So, there is only two or three weeks to wait before we publish that list itself. But yes, tentative progress, for the first time, people can start to think about visiting loved ones abroad, or perhaps a summer holiday.

“But we’re doing it very, very cautiously, because we don’t want to see any return of coronavirus in this country.”