Norwegian Air will restart flights to and from UK airports from July 1 “as a result of increased customer demand”.
The airline will resume flights on 76 routes halted during the coronavirus outbreak and bring back into service 12 of its mothballed aircraft on top of the eight already flying, as European countries reopen and demand for flights rises.
Norwegian Air will serve Gatwick and Edinburgh to and from Oslo and Copenhagen.
Airlines have been hit hard by the pandemic, which has put a stop to most international travel, leading companies to seek help from governments.
Norwegian chief executive Jacob Schram said: “Feedback from our customers has shown that they are keen to get back in the air and resume their travels with Norwegian beyond the current domestic services that we have been operating.
“Norwegian is returning to European skies with the reintroduction of more aircraft to serve our key destinations which will ensure that we remain in line with competing carriers.”
More than 300 pilots and 600 cabin crew from the company’s bases in Norway will operate 20 aircraft, with about 200 pilots and 400 cabin crew being brought back from layoffs, the budget carrier said.
Norwegian furloughed or laid off about 7,300 staff, roughly 90% of its employees, after the COVID-19 outbreak.