Travellers should anticipate severe flight disruptions in Italy today as air traffic controllers join industrial action planned by public workers, The Independent says.
The controllers will stop work between 13h00 and 17h00, grounding flights at the busiest time of the week. Alitalia is worst hit, with more than 100 cancellations.
Another strike is planned for July 5.
Travellers who manage to reach Italy may find local transport disrupted. Workers on buses and trams in Rome, Turin and Verona are staging a 24-hour strike.
On Saturday and Sunday, it is the turn of French air-traffic controllers in the Marseille Area Control Centre to walk out.
The centre covers the southeast quarter of France, the island of Corsica and a large tranche of Mediterranean airspace extending as far south as the southern tip of Sardinia.
Flights to and from Nice, Lyon and Corsica are likely to be affected, and journeys to Mediterranean destinations may take longer as pilots are routed around the affected airspace.
Friday is the second day of the latest 48-hour strike by French rail workers. Four out of five TGV high-speed trains are predicted to run by the national operator, SNCF, but on conventional inter-city routes and some suburban lines around half the services have been cancelled.
Eurostar has four trains between London and Paris. Passengers can switch to alternative services or claim a full refund.
The strikes are set to continue every five days until June 28, but could be extended over the peak holiday months of July and August.