easyJet said: “We have been informed of the national strike action in Italy on Monday 12 September which will affect some areas of the airport, including ground handling services.
“Like all airlines flying to and from Italy, we may see some disruption to our flight schedule on this date.
“We advise customers traveling to or from Italy on Monday September 12 to spend extra time traveling to and from the airport and to check the status of their flights on our Flight Tracker on our mobile app or website: www.easyjet.com/en/flight-tracker.
“Should flights be cancelled, we will contact customers via email and SMS using the details provided during booking and check-in.
“Only for canceled flights, we advise customers not to travel to the airport, but to transfer their flights for free or make a refund by logging into Manage Bookings on easyJet.com or our Flight Tracker.
“In accordance with EU261 regulations, customers are not entitled to compensation as a result of the industrial action.
“While this is beyond our control, we want to reassure customers that we are doing everything we can to minimize any disruption caused by the strike action.”
easyJet has said customers affected by the Italian industrial action are not entitled to cash compensation.
Under current law, passengers are entitled to compensation if the airline defaults and the cancellation is made at the last minute.
Passengers are entitled to an alternative flight on their scheduled day of travel, even if it is with a competing airline.
There may be disruption at Italian airports as a result of the strike involving some of the ground staff involved.
Airports and airlines have been hit by strikes across Europe this summer.
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RMT General Secretary Mick Lynch said: “RMT joins the entire nation in paying its respects to Queen Elizabeth.
“The planned railway strike on 15 and 17 September has been suspended. We extend our deepest condolences to her family, friends and the country.”
Trains are expected to be busy as many Britons travel to pay their respects to Her Majesty.
Huge crowds have gathered at The Queen’s residences, while many have left flowers in London’s Green Park.