Groundforce provides services to TAP at Portuguese airports in Lisbon, Porto and Faro, and because of the anticipated disruptions, the company has issued advice on social media.

In a statement made public on Facebook, TAP regrets the situation and says it is "actively working to minimise the disruption caused."

Addressing its potential passengers, TAP warns: "Before heading to the airport, we recommend that you check the status of your flight at https://www.flytap.com/pt-pt/ferramenta-informacao-voo

“If it is confirmed, check in online and go to the airport in advance, avoiding taking checked luggage with you”.

TAP also provides another recommendation: “if you want to change your flight now, you can do so here: https://myb.flytap.com/my-bookings”.