Aer Lingus says the losses it has incurred due to lost bookings, because of the ongoing dispute over rosters, has far exceeded the cost of hiring planes and crew from other carriers.
The airline made its comments after trade union IMPACT called on it to reveal how much it was costing the airline to hire planes and crew. IMAPCT suggested the costs could be up to €400,000 a day.
The dispute is now into its second week and passengers were disrupted by cancellations last week, leading to the company being forced to hire outside help.