EasyJet has admitted that almost half of flights cancelled ahead of a planned strike affecting Greek air traffic control will not operate despite the industrial action being called off.

Other airlines such as Monarch said their scheduled would run as normal after strikes planned to take place on Sunday and Monday as well as Wednesday and Thursday were abandoned.

Only 24 out of 44 flights cancelled by easyJet were reinstated, ITV News reports.

“Unfortunately due to the late notice we are unable to reinstate all the flights we cancelled for today and tomorrow,” the budget carrier said on Saturday.

“We will however be able to reinstate some of the cancelled flights across the Greek islands.”

Affected passengers were offered the option of changing their flights without incurring fees or to receive a refund.

Monarch said: “The Greek air traffic control strike has been called off. Our flights will all operate as originally scheduled.”

Greek carrier Aegean said: “After the 24-hour rolling strikes previously announced by the Greek Air Traffic Controllers Association were called off, Aegean’s and Olympic Air’s flights scheduled originally for Monday will all take place as planned while the majority of flights on Sunday will proceed as originally scheduled.”