(CNN) – London’s Heathrow Airport faces “major disruption” as 350 ground workers begin a three-day strike over pay on Friday, the Unite union said on Thursday.
The union’s 350 members, who Unite said were employed by aviation firm Menzies, will begin a 72-hour strike at 4am local time on November 18, according to a press release.
The press release said the strike at Britain’s busiest airport would “cause disruption, delays and cancellations of flights departing from Heathrow Terminals 2, 3 and 4”.
It added that American Airlines, Air Canada, Lufthansa, Qantas, Swiss Air, TAP Air Portugal, Austrian Airlines, Egyptair, Aer Lingus and Finnair would be among the airlines particularly affected by the action.
Air traffic at Heathrow suffered disruption over the summer as travel demand recovered from pandemic lows.
To date, the airport has reached around 74% of 2019 passenger levels.
Passengers line up at check-in counters at Terminal 2 at Heathrow Airport in London on June 27. (Henry Nicholls/Reuters)