More than 10,000 seats are being added by Jet2.com and Jet2holidays for this summer to green list destinations as the company urged ministers to “take the handbrake” off travel curbs.
Late summer capacity has been raised to Malta, Madeira, Dubrovnik and Split in Croatia and Jersey.
The increase is in response to continued demand from customers and independent travel agents.
The company recently added capacity to many of these destinations.
Extra flights have now been laid on from Birmingham, Leeds-Bradford, Manchester, Newcastle and Stansted.
Chief executive Steve Heapy said: “Destinations on the green list are continuing to enjoy a huge amount of demand from our customers and once again we are responding quickly to that demand by giving holidaymakers even more choice and flexibility.”
But he added: “On one hand, we are very pleased to be adding more flights and holidays to such fantastic destinations but on the other hand we continue to be left frustrated that so many more destinations remain off the green list for no discernible reason.
“We are now right in the middle of the peak holiday season so we urge the government to take the handbrake off international travel and adopt the same approach as it has to so many other areas of everyday life.
“The vaccination programme continues to be a huge success so we should be able enjoy the benefits of that, including enjoying our holidays this summer.”