Aer Lingus has said its total passenger numbers fell by 17% to 552,000 from 665,000 in January.
Flight cancellations due to the industrial dispute with the IMPACT cabin crew union and weather-related disruption meant the number of passengers carried by Aer Lingus was 4% below the number who had booked to fly with the airline.
Aer Lingus says 552,000 passengers were booked to fly in January, which means just over 22,000 had their flight cancelled.
The airline said its total passenger numbers fell to 552,000 from 665,000 in the same month last year.
Short-haul booked passengers were down over 17% to 504,000 while long-haul booked passengers fell 15.8% to 48,000.
