Alitalia has been forced to cancel at least 20 flights and alter schedules due to a general strike in Italy tomorrow.

Only flights departing the country between 7am and 10am and 6pm and 9pm local time will operate as usual.

The carrier said: “Due to a 24-hour air transport general strike confirmed by some Italian unions for Friday 8 March, some changes may occur to the Alitalia flight schedule during the day.

“The airline was therefore forced to cancel some domestic and international flights scheduled for 8 March.”

Alitalia said it had taken special measures to mitigate customer inconvenience and rebook passengers affected by cancellations onto the first available flights.

EasyJet also warned that flights to and from Verona and Pisa could be affected due to the industrial action affecting grounded handling.

“We have been advised of a industrial action across Italy on Friday 8th March which is affecting ground handling in Verona and Pisa,” the UK budget carrier said.

”We have also been made aware that the strike action may also affect public transport. Like all airlines, our flights to and from these airports could be affected.

“We expect that there will be delays and cancellations due to the industrial action, therefore we advise all customers to check the status of their flight.”