Ryanair will cancel another 18,000 flights between November and March, affecting the travel plans of another 400,000 passengers.
The Irish budget airline said as part of efforts to end a wave of cancellations that has already seen 2000 flights grounded, it will fly 25 less aircraft.
The firm has been forced into the cancellations after miscalculating pilot leave.
Taking more flights out of service means that Ryanair will be able to "roster all of the extra pilot leave necessary" in October, November and December, the carrier said.
As a result, 34 routes are suspended for the winter season from November to March 2018.
They include several popular routes used by British travellers, including London Stansted to Edinburgh and Glasgow, Gatwick to Belfast, Newcastle to Faro, and Glasgow to Las Palmas.
The move will add to mounting anger over Ryanair, which has come under heavy fire after recently shelving up to 50 flights every day for six weeks.
Boss Michael O'Leary has blamed the move on mismanagement of pilots' annual leave, leading to the over-allocation of blocks of holidays.
The flight cancellations has so far cost the airline around 25 million euros ($A37 million).
Share
