According to data collected by Lusa, 30 departures and 23 arrivals in Lisbon and 15 departures and 15 arrivals in Porto are cancelled.

Most of the cancelled flights are from easyJet, which on Thursday announced that it had previously decided to cancel some flights in Lisbon and Porto due to the strike.

No cancellations were recorded in Faro or Funchal, the other airports covered by the three-day notice of strike, called by the National Union of Civil Aviation Workers (Sintac).

The strike, scheduled for today, Saturday and Sunday, contests "the HR policy [human resources] adopted over the last few years by Portway, a company owned by the Vinci group, of confrontation and devaluation of workers through", says the union.

The notice foresees the general stoppage of workers of the ground assistance company, at Lisbon, Porto, Faro and Madeira airports, starting at 00:00 today and ending at midnight on Sunday.

ANA - Aeroportos de Portugal and Portway warned on Thursday of possible disruptions to 22 airlines operating at national airports.

In a note published on their websites, the manager of national airports, owned by Vinci, and the ground handling company, from the same group, published a list of "airlines whose flights could be affected by the strike".

The companies concerned are Aegean, Air Canada, Air Transat, American Airlines, Blue Air, Brussels, Cabo Verde Airlines, easyJet, Euroatlantic, European Air Transport, Eurowings, Finnair, Flyone, Latam, Luxair, Swiftair, Transavia, Transavia France, Tunisair, Turkish Airlines, Volotea and Wizzair.