Jet2 has extended the suspension of its flights and holidays due to a 'lack of clarity and detail' in the government's plans.
The airline has now said it hopes to resume travel from June 23.
It comes after the government’s announcement on how foreign leisure travel will resume after the easing of coronavirus restrictions.
Under current Covid regulations it is illegal to go abroad on holiday.
Jet2 chief executive Steve Heapy 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.”
Earlier, Transport Secretary Grant Shapps said that the public could now “start to think” about foreign holidays this summer.
Asked if people could start to book foreign holidays now, he 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.”
The Global Travel Taskforce’s framework, released by the government on Friday morning, outlined how international travel could resume from May 17.
The taskforce said that people arriving home from abroad would still be subject to rules such as home quarantine and strict testing, but these will be differently applied depending on the country visited using a traffic light system.
This system will categorise countries based on their Covid-19 risk levels
